Low Voltage Circuit Breakers
www.vitzrotech.com
Molded Case Circuit Breakers, MCCBMiniature Circuit Breakers, MCB
Earth Leakage Circuit Breakers, ELCB
MCCB / M
CB / ELCB
Vitzrotech Low Voltage Circuit Breakers
Contents
Features 4
Ordering information 12
Types and ratings 16
- Economic VBE type 16
- Standard VBS type 18
- High interrupting VBH type 20
- Current limiting VBL type 22
- Panel board MCCB and ELCB 24
- MCB 26
Accessories 28
Dimensions and trip curves 34
Technical information 60
2 VITZROTECH MCCB
MCCB, MCB & ELCB
3Low Voltage Circuit Breakers
MCCB
MCB & ELCB
2, 3 pole 2, 3 pole30~100AF
MCCBVBP typePanel board type MCCB
30~100AF
ELCBVLP typeEarth leakage circuit breaker
Ratings� Ampere frame size 30 to 800AF� Breaking capacity,
Icu up to 65kA at 460Vac� 2, 3 and 4-pole
Classy designs� Soft-edge front cover� Terminal cover
Various options according to mounting, size and characteristic.
4 VITZROTECH MCCB
1, 2, 3 pole 1, 2, 3 pole60AF
MCBVBK typeMiniature Circuit Breaker MCB
50~100AF
MCBVBF typePanel board type MCB
2, 3 and 4 pole series� 4 pole MCCB available
up to 800AF
5Low Voltage Circuit Breakers
30~800AF
2.5~35kA at 460Vac
VBE type Economic type MCCB
30~800AF
10~50kA at 460Vac
VBS type Standard type MCCB
[ 4 Types ]� VB series providing 4 types of MCCBs by breaking capacity.� Each type has its own color code on the name plate.
6 VITZROTECH MCCB
VITZRO low voltage breakers are designed tomeet all requirements of IEC60947-2
Ampere frame
Breaking capacity
2, 3, 4 pole
Ampere frame
Breaking capacity
2, 3, 4 pole
30~400AF
14~50kA at 460Vac
VBH type High interrupting capacity type MCCB
50~800AF
65kA at 460Vac
VBL type Current limiting type MCCB
[ Increased breaking Capacity ]� VB series providing increased breaking capacity
7Low Voltage Circuit Breakers
Ampere frame
Breaking capacity
2, 3, 4 pole
Ampere frame
Breaking capacity
2, 3, 4 pole
Unified Dimensions
Major dimensions for panel cutouts and wiring are unified up to 225AF
64mm
60mm
Depth
Depth of terminal24mm
8 VITZROTECH MCCB
22mm
Wide
Cutout in case of
using 64mm depth
Cutout
50
mm
He
igh
t
Depth 64mm Depth 60mm
22mmWide
50
mm
He
igh
t
9Low Voltage Circuit Breakers
Process for accessories installation
AXAuxiliary switch
ALAlarm switch
Terminal cover
SHTShunt trip device
UVTUnder voltage
trip device
Trip the breaker Open the front cover
Grip the auxiliary
Close the front cover
Insert it into the reserved position
AX, AL SHT, UVT
10 VITZROTECH MCCB
Front cover
[ Descriptions ]
AX, Auxiliary Switch
It gives ON/OFF signal of the breaker with a changeover contact.
AL, Alarm Switch
It gives TRIP signal of the breaker.
It does not operate when the breaker is normally opened or closed.
It consists of a changeover contact.
SHT, Shunt Trip device
It make the breaker TRIPPED when any AC or DC voltage
is applied to itself.
UVT, Under Voltage Trip device
It make the breaker TRIPPED when the control voltage disappears or falls.
AX
AL
SHT
UVT
11Low Voltage Circuit Breakers
Ordering information
12 VITZROTECH MCCB
Economic type
VBE series
Standard type
VBS series
High interrupting capacity type
VBH seriesCurrent limitingtype MCCB
VBL series
Change the Breakers, Change the Quality
13Ordering information
Low Voltage Circuit Breakers
■MCCB
Basic name
VBVitzrotech Breaker
Type
E Economic
S Standard
H High interrupting
L Current limiting
AF
3 30AF
5 50AF
6 60AF
10 100AF
20 225AF
40 400AF
60 600AF
80 800AF
Pole
2 2 Pole
3 3 Pole
4 4 Pole
Rated current
3A 150A
5A 175A
6A 200A
10A 225A
15A 250A
20A 300A
30A 350A
40A 400A
50A 500A
60A 600A
75A 700A
100A 800A
125A
Accessory
None
AX Auxiliary Switch
AL Alarm Switch
SHT Shunt Trip
UVT Under Voltage Trip
Ordering information
14 VITZROTECH MCCB
MCB/Panel board MCCB/ELCB
Basic name
VBVitzrotech Breaker
Type
F Clamp mounting
K DIN Rail mounting
AF
5 50AF
6 60AF
10 100AF
Pole
1 1 Pole
2 2 Pole
3 3 Pole
Rated current
6A
10A
15A
20A
30A
40A
50A
60A
75A
100A
Compact and miniature circuit breakers are used for panel board circuits and residential purpose to protect cables, lighting and other loads.They offer various options according to mounting, size and characteristic.
MCB …DIN Rail mountable
VBK typeMCB …Clamp mountable
VBF type
Change the Breakers, Change the Quality
15Ordering information
Low Voltage Circuit Breakers
Basic name
VBVitzrotech Breaker
Type
PRail/Screwmountable
Type
PRail/Screwmountable
Type
PRail/Screwmountable
AF
3 30AF
5 50AF
10 100AF
Pole
2 2 Pole
3 3 Pole
Rated current
5A
10A
15A
20A
30A
40A
50A
60A
75A
100A
Basic name
VLVitzrotech ELCB
AF
3 30AF
5 50AF
10 100AF
Pole
2 2 Pole
3 3 Pole
Rated current
6A
10A
15A
20A
30A
40A
50A
60A
75A
100A
Residual current
15mA
30mA
100mA
ELCB …DIN Rail/Screw mountable
VLP type
Panel board MCCB …DIN Rail/Screw mountable
VBP type
16 VITZROTECH MCCB
Note : The rated currents in ( ) are available on request
Economic type MCCB
Frame size
Number of pole
Type
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC480/500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 380V
AC220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Dimensions(mm) a
b
c
d
Weight
Mounting
Accessory
Auxiliary switch AX
Alarm switch AL
Shunt trip SHT
Under voltage trip UVT
Terminal cover TC
Insulation barrier IB
Other information
30AF 50AF 60AF
2-pole 3-pole 2-pole 3-pole 4-pole 2-pole 3-pole 4-pole
VBE 32 VBE 33 VBE 52 VBE 53 VBE 54 VBE 62 VBE 63 VBE 64
5, 10, 15, (16), 20, (25), 30, (32)A 6, 10, 15, (16), 20, (25), 30, (32)40, 50A 60, (63)A
690V 690V 690V
- 2.5kA 2.5kA
- 5kA 5kA
2.5kA 10kA 14kA
2.5kA 10kA 14kA
2.5kA 10kA 14kA
5kA 18kA 18kA
- 2.5kA - 2.5kA -
8500 8500 8500
1500 1500 1500
Hydraulic magnetic (HM) Thermal magnetic (TM) Thermal magnetic (TM)
50 75 50 75 100 50 75 100
96 130 130
60 60 60
80 80 80
0.33kg 0.47kg 0.45kg 0.65kg 0.85kg 0.45kg 0.65kg 0.85kg
Screw Screw Screw
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- ● ●
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- ● ●
- ● ●
34 page 36 page 36 page
ad
c
b
Change the Breakers, Change the Quality
17VBE type
Low Voltage Circuit Breakers
30~800AF
2.5~35kA
at 460Vac
Ampere frame
Breaking capacity
2, 3, 4 pole
at AC460V
at AC220V
100AF 225AF 400AF 600AF 800AF
2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole
VBE 102 VBE 103 VBE 104 VBE 202 VBE 203 VBE 204 VBE 402 VBE 403 VBE 404 VBE 602 VBE 603 VBE 604 VBE 802 VBE 803 VBE 804
10, 15, (16), 20, (25), 30, (32)40, 125, 150, (160), 175250, 300, (320), 350, 400 A 500, 600, (630)A 700, 800A
50, 60, (63), 75, (80), 100A (180), 200, 225 A
690V 690V 690V 690V 690V
7.5kA 7.5kA 18kA 22kA 22kA
10kA 10kA 18kA 25kA 25kA
14kA 18kA 25kA 35kA 35kA
14kA 18kA 25kA 35kA 35kA
14kA 18kA 25kA 35kA 35kA
25kA 35kA 35kA 50kA 50kA
5kA - 10kA - 10kA - 20kA - 20kA -
8500 7000 4000 4000 4000
1500 1000 1000 1000 1000
Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM)
50 75 100 105 105 140 140 140 185 210 210 280 210 210 280
130 165 257 275 275
60 60 109 107 107
80 84 145 155 155
0.45kg 0.65kg 0.85kg 1.1kg 1.2kg 1.5kg 5.2kg 6.2kg 7.8kg 11kg 11.5kg 18.2kg 11kg 11.5kg 18.2kg
Screw Screw Screw Screw Screw
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38 page 42 page 44 page 46 page 48 page
Standard type MCCB
18 VITZROTECH MCCB
30AF 50AF 60AF
2-pole 3-pole 4-pole 2-pole 3-pole 4-pole 2-pole 3-pole 4-pole
VBS 32 VBS 33 VBS 34 VBS 52 VBS 53 VBS 54 VBS 62 VBS 63 VBS 64
6, 10, 15, (16), 20, (25), 30, (32)A 6, 10, 15, (16), 20, (25), 30, (32)40, 50A 60, (63)A
690V 690V 690V
2.5kA 5kA 5kA
5kA 7.5kA 7.5kA
10kA 14kA 14kA
10kA 14kA 14kA
10kA 14kA 14kA
18kA 25kA 25kA
2.5kA - 5kA - 25kA -
8500 8500 8500
1500 1500 1500
Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM)
50 75 100 50 75 100 50 75 100
130 130 130
60 60 60
80 80 80
0.45kg 0.65kg 0.85kg 0.45kg 0.65kg 0.85kg 0.45kg 0.65kg 0.85kg
Screw Screw Screw
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36 page 38 page 38 page
Frame size
Number of pole
Type
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC480/500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 380V
AC220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Dimensions(mm) a
b
c
d
Weight
Mounting
Accessory
Auxiliary switch AX
Alarm switch AL
Shunt trip SHT
Under voltage trip UVT
Terminal cover TC
Insulation barrier IB
Other information
ad
c
b
Note : The rated currents in ( ) are available on request
Change the Breakers, Change the Quality
19VBS type
Low Voltage Circuit Breakers
30~800AF
10~50kA
at 460Vac
Ampere frame
Breaking capacity
2, 3, 4 pole
100AF 225AF 400AF 600AF 800AF
2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole
VBS 102 VBS 103 VBS 104 VBS 202 VBS 203 VBS 204 VBS 402 VBS 403 VBS 404 VBS 602 VBS 603 VBS 604 VBS 802 VBS 803 VBS 804
10, 15, 20, (25), 30, 40, 125, 150, (160), 175, 250, 300, (320), 350, 400A 500, 600, (630)A 700, 800A
50, 60, 75, 100A (180), 200, 225A
690V 690V 690V 690V 690V
10kA 10kA 22kA 35kA 35kA
14kA 14kA 25kA 45kA 45kA
25kA 25kA 35kA 50kA 50kA
25kA 25kA 35kA 50kA 50kA
25kA 25kA 35kA 50kA 50kA
50kA 50kA 50kA 100kA 100kA
14kA - 14kA - 20kA - 40kA - 40kA -
8500 7000 4000 4000 4000
1500 1000 1000 1000 1000
Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM)
60 90 120 105 105 140 140 140 185 210 210 280 210 210 280
155 165 257 275 275
60 60 109 107 107
82 84 145 155 155
0.7kg 1.0kg 1.2kg 1.1kg 1.2kg 1.5kg 5.2kg 6.2kg 7.8kg 11kg 11.5kg 18.2kg 11kg 11.5kg 18.2kg
Screw Screw Screw Screw Screw
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40 page 42 page 44 page 46 page 48 page
at AC460V
at AC220V
High interrupting capacity type MCCB
20 VITZROTECH MCCB
Frame size
Number of pole
Type
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC480/500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 380V
AC220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Dimensions(mm) a
b
c
d
Weight
Mounting
Accessory
Auxiliary switch AX
Alarm switch AL
Shunt trip SHT
Under voltage trip UVT
Terminal cover TC
Insulation barrier IB
Other information
30AF 50AF 60AF
2-pole 3-pole 4-pole 2-pole 3-pole 4-pole 2-pole 3-pole 4-pole
VBH 32 VBH 33 VBH 34 VBH 52 VBH 53 VBH 54 VBH 62 VBH 63 VBH 64
6, 10, 15, (16), 20, (25), 30, (32)A 10, 15, (16), 20, (25), 30, (32)40, 50A 60, (63)A
690V 690V 690V
5kA 10kA 10kA
7.5kA 14kA 14kA
14kA 25kA 25kA
14kA 25kA 25kA
14kA 25kA 25kA
25kA 50kA 50kA
5kA - 14kA - 14kA -
8500 8500 8500
1500 1500 1500
Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM)
50 75 100 60 90 120 60 90 120
130 155 155
60 60 60
80 82 82
0.45kg 0.65kg 0.85kg 0.7kg 1.0kg 1.2kg 0.7kg 1.0kg 1.2kg
Screw Screw Screw
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38 page 40 page 40 page
ad
c
b
Note : The rated currents in ( ) are available on request
Low Voltage Circuit BreakersChange the Breakers, Change the Quality
21VBH type
30~400AF
14~50kA
at 460Vac
Ampere frame
Breaking capacity
2, 3, 4 pole
100AF 225AF 400AF
2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole
VBH 102 VBH 103 VBH 104 VBH 202 VBH 203 VBH 204 VBH 402 VBH 403 VBH 404
15, (16), 20, (25), 30, (32)40, 50,125, 150, (160), 175, (180), 200, 225 A 250, 300, (320), 350, 400 A
60, (63), 75, (80), 100A
690V 690V 690V
18kA 18kA 30kA
25kA 25kA 35kA
35kA 35kA 50kA
35kA 35kA 50kA
35kA 35kA 50kA
65kA 65kA 85kA
18kA - 18kA - 40kA -
8500 7000 4000
1500 1000 1000
Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM)
60 90 120 105 105 140 140 140 185
155 165 257
60 60 109
82 84 145
0.7kg 1.0kg 1.2kg 1.1kg 1.2kg 1.5kg 5.2kg 6.2kg 7.8kg
Screw Screw Screw
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40 page 42 page 44 page
at AC460V
at AC220V
Current limiting type MCCB
22 VITZROTECH MCCB
Frame size
Number of pole
Type
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC480/500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 380V
AC220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Dimensions(mm) a
b
c
d
Weight
Mounting
Accessory
Auxiliary switch AX
Alarm switch AL
Shunt trip SHT
Under voltage trip UVT
Terminal cover TC
Insulation barrier IB
Other information
50AF 100AF 225AF
* 2-pole 3-pole * 2-pole 3-pole * 2-pole 3-pole
VBL 52 VBL 53 VBL 102 VBL 103 VBL 202 VBL 203
10, 15, (16), 20, (25), 30, 10, 15, (16), 20, (25), 30, (32)40, 50, 125, 150, (160), 175,(32)40, 50A 60, (63), 75, (80), 100A (180), 200, 225 A
690V 690V 690V
35kA 35kA 35kA
42kA 42kA 42kA
65kA 65kA 65kA
65kA 65kA 65kA
65kA 65kA 65kA
100kA 100kA 100kA
40kA 40kA 40kA
8500 8500 7000
1500 1500 1000
Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM)
74 105 74 105 105 105
156 156 165
82 82 99
104 104 122
1.2kg 1.4kg 1.2kg 1.4kg 2.0kg 2.1kg
Screw Screw Screw
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50 page 50 page 52 page
ad
c
b
Note : The rated currents in ( ) are available on request
Change the Breakers, Change the Quality
23VBL type
Low Voltage Circuit Breakers
400AF 600AF 800AF
* 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole * 2-pole 3-pole 4-pole
VBL 402 VBL 403 VBL 404 VBL 602 VBL 603 VBL 604 VBL 802 VBL 803 VBL 804
250, 300, (320), 350, 400 A 500, 600, (630)A 700, 800A
690V 690V 690V
35kA 42kA 42kA
50kA 50kA 50kA
65kA 65kA 65kA
65kA 65kA 65kA
65kA 65kA 65kA
125kA 125kA 125kA
40kA - 40kA - 40kA -
4000 4000 4000
1000 1000 1000
Thermal magnetic (TM) Thermal magnetic (TM) Thermal magnetic (TM)
140 140 185 210 210 280 210 210 280
257 275 275
109 107 107
145 155 155
5.2kg 6.2kg 7.8kg 11kg 11.5kg 18.2kg 11kg 11.5kg 18.2kg
Screw Screw Screw
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44 page 46 page 48 page
50~800AF
65kA
at 460Vac
Ampere frame
Breaking capacity
2, 3, 4 pole
at AC460V
at AC220V
MCCB VBP typePanel board MCCB
24 VITZROTECH MCCB
Frame size
Number of pole
Type
Rated current
Rated insulation voltage AC
Rated breaking AC 460V
capacity, Icu AC 415V
KSC8321(Sym) AC 380V
IEC60947-2(Icu) AC 240V
Ics=0.5xIcu AC 220V
AC 110V
Automatic tripping device
Dimensions(mm) a
b
c
d
Weight
Mounting
Other information
30AF 50AF 100AF
2-pole 3-pole 2-pole 3-pole 2-pole 3-pole
VBP 32 VBP 33 VBP 52 VBP 53 VBP 102 VBP 103
6, 10, 15, (16), 20, (25), 30, (32)A 15, (16), 20, (25), 30, (32)40, 50A 60, (63), 75, (80), 100A
690V 690V 690V
2.5kA 2.5kA 2.5kA
2.5kA 2.5kA 2.5kA
2.5kA 2.5kA 2.5kA
5kA 5kA 5kA
5kA 5kA 5kA
5kA 5kA 5kA
Hydraulic magnetic Hydraulic magnetic Hydraulic magnetic
50 75 50 75 75 75
96 96 96
60 60 60
80 80 80
0.33kg 0.47kg 0.33kg 0.47kg 0.5kg 0.5kg
Screw/DIN rail Screw/DIN rail Screw/DIN rail
56 page 56 page 56 page
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c
b
30~100AF Ampere frame
2, 3- pole
Note : The rated currents in ( ) are available on request
25VLP type
Change the Breakers, Change the Quality
Low Voltage Circuit BreakersELCB VLP typePanel board ELCB
30~100AF Ampere frame
2, 3- pole
Frame size
Type
Number of pole
Rated current
Rated insulation voltage AC
Rated breaking capacity, Icu AC 460V
KSC8321(Sym) AC 220V
Protection function
Rated sensitive current
Operation time
Automatic overcurrent
tripping device ground fault
Dimensions(mm) a
b
c
d
Weight
Mounting
Other information
30AF 50AF 100AF
VLP 32 VLP 33 VLP 52 VLP 53 VLP 102 VLP 103
2-pole 3-pole 2-pole 3-pole 2-pole 3-pole
6, 10, 15, (16), 20, (25), 30, (32)A 15, (16), 20, (25), 30, (32)40, 50A 60, (63), 75, (80), 100A
220V 460V 220V 460V 220V 460V
- 2.5kA - 2.5kA - 2.5kA
5kA 5kA 5kA 5kA 5kA 5kA
Ground fault, Overload, Short-circuit
30mA 30mA 30mA
0.03 sec 0.03 sec 0.03 sec
Hydraulic magnetic Hydraulic magnetic Hydraulic magnetic
Electronic Electronic Electronic
50 75 50 75 75 75
96 96 96
60 60 60
80 80 80
0.33kg 0.47kg 0.33kg 0.47kg 0.5kg 0.5kg
Screw/DIN rail Screw/DIN rail Screw/DIN rail
58 page 58 page 58 page
ad
c
b
Note : The rated currents in ( ) are available on request
MCB VBK typeMiniature Circuit Breaker
26 VITZROTECH MCCB
Frame size
Number of pole
Type
Rated current
Rated insulation voltage AC
Rated breaking capacity, Icu AC 380V
KSC8321(Sym) AC 220/240V
Automatic tripping device
No. of operation cycle
Dimensions(mm) a
b
c
d
Weight
Mounting
Other information
60AF
1-pole 2-pole 3-pole
VBK 61 VBK 62 VBK 63
6, 10, 15, (16), 20, 30, (32), 40, 50A 6, 10, 15, 20, 30, 40, 50, 60, (63)A
220/240V 220/240V 460V
- - 2.5kA
5kA 5kA 5kA
Thermal-Magnetic
20000operations(mechanical/electrical)
18 36 54
85
50
73
0.12kg 0.24kg 0.36kg
DIN rail
54 page
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c
b
60AF Ampere frame
1, 2, 3- pole
Trip curve : C type
DIN rail mountable
Note : The rated currents in ( ) are available on request
27VBF type
Change the Breakers, Change the Quality
Low Voltage Circuit BreakersMCB VBF typeMiniature Circuit Breaker
50~100AF Ampere frame
1, 2, 3- pole
Clamp mountable
Frame size
Number of pole
Type
Rated current
Rated insulation voltage AC
Rated breaking capacity, IcuAC220/240V
KSC8321(Sym)
Automatic tripping device
Dimensions(mm) a
b
c
d
Weight
Mounting
Other information
50AF 100AF
1-pole 2-pole 3-pole 1-pole 2-pole 3-pole
VBF 51 VBF 52 VBF 53 VBF 101 VBF 102 VBF 103
10, 15, (16), 20, 30, (32), 40, 50 A 60, (63), 75, (80), 100A
220/240V 220/240V
2.5kA 5kA 5kA 2.5kA 5kA 5kA
Thermal-magnetic Thermal-magnetic
20 50 75 20 50 75
95 95
60 60
77 77
0.13kg 0.26kg 0.38kg 0.13kg 0.26kg 0.38kg
Clamping Clamping
55 page 55 page
ad
c
b
Note : The rated currents in ( ) are available on request
Combination for internal accessories
28 VITZROTECH MCCB
○ AX, Auxiliary switch ● AL, Alarm switch □ SHT, Shunt trip or UVT, Under voltage trip
Installation positions
Leftcavity
Rightcavity
VBE 52 VBE 53 VBE 402/403/404VBE 62 VBE 63 VBE 602/603/604VBE102 VBE 103/104 VBE 802/803/804
VBE 202/203/204VBS 32 VBS 33 VBS 402/403/404VBS 52 VBS 53/54 VBS 602/603/604VBS 62 VBS 63/64 VBS 802/803/804VBS 102 VBS 202/203/204VBH 32 VBH 33 VBH 402/403/404VBH 52 VBH 53/54VBH 102 VBH 103/104
VBH 202/203/204VBL 52 VBL53/54 VBL 402/403/404VBL 102 VBL 103/104 VBL 602/603/604
VBL 202/203/204 VBL 802/803/804
2-pole 2, 3, 4-pole 2, 3, 4-pole
Economictype
Standardtype
High interruptingtype
Current limitingtype
Number of pole
AX
AX2
AX3(4)
AL
AL2
AL3(4)
SHT(UVT)
SHT(UVT)2
AX+AL
AX+AL2
AX+AL3(4)
AX2+AL
AX2+AL2
AX2+AL3(4)
AX3(4)+AL
AX3(4)+AL2
AX3(4)+AL3(4)
AX+SHT(UVT)
Handle
MCCB
29Combination for internal accessories
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
VBE 52 VBE 53 VBE 402/403/404VBE 62 VBE 63 VBE 602/603/604VBE102 VBE 103/104 VBE 802/803/804
VBE 202/203/204VBS 32VBS 33 VBS 402/403/404
VBS 52 VBS 53/54 VBS 602/603/604VBS 62 VBS 63/64 VBS 802/803/804VBS 102 VBS 202/203/204
VBH 32VBH 33 VBH 402/403/404VBH 52 VBH 53/54
VBH 102VBH 103/104VBH 202/203/204VBL 52VBL53/54 VBL 402/403/404
VBL 102 VBL 103/104 VBL 602/603/604VBL 202/203/204 VBL 802/803/804
2-pole 2, 3, 4-pole 2, 3, 4-pole
Economictype
Standardtype
High interruptingtype
Current limitingtype
Number of pole
AX+SHT(UVT)2
AX2+SHT(UVT)
AX2+SHT(UVT)2
AX3(4)+SHT(UVT)
AX3(4)+SHT(UVT)2
AL+SHT(UVT)
AL+SHT(UVT)2
AL2+SHT(UVT)
AL2+SHT(UVT)2
AL3(4)+SHT(UVT)
AL3(4)+SHT(UVT)2
AX+AL+SHT(UVT)
AX+AL+SHT(UVT)2
AX2+AL2+SHT(UVT)
AX2+AL2+SHT(UVT)2
AX3(4)+AL3(4)+SHT(UVT)
AX3(4)+AL3(4)+SHT(UVT)2
Terminal numbering
AX, Auxiliary switch AL, Alarm switch SHT, Shunt trip UVT, Under voltage trip
MCCB
Ratings of internal accessories
30 VITZROTECH MCCB
■Auxiliary switch, AX and alarm switch, AL
Operation of switches
▶▶ Auxiliary switch
AX, Auxiliary switch
It gives ON/OFF signal of the breaker with a changeover contact.
▶▶ Alarm switch
AL, Alarm switch
It gives TRIP signal of the breaker. It does not operate
when the breaker is normally opened or closed.
It consists of a changeover contact.
MCCB status
On Off Tripped
Auxiliary switch
AX
Alarm switch
AL
AXc1AXa1
AXb1
(20)
(30)
(21)
ALc1ALa1
ALb1
(11)
(12)
(13)
ALc1ALa1
ALb1
(11)
(12)
(13)
AXc1AXa1
AXb1
(20)
(30)
(21)
Electrical ratings of switches
AC DC
AF MCCB types Voltage Current Voltage Current
(V) Resistive load Inductive load (V) Resistive load Inductive load
VBE 50, 60, 100, 255, 400, 600, 800 125 5 3 30 4 3
30AF~800AFVBS 30, 50, 60, 100, 225, 400, 600, 800 250 3 2 125 0.4 0.4
VBH 30, 50, 100, 225, 400 500 - - 250 0.2 0.2
VBL 30, 50, 100, 225, 400, 600, 800
Note : MCCB type shows its nominal type. For example VBS30 indicates VB32(2-pole), 33(3-pole) and 34(4-pole).
31Ratings of internal auxiliaries
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
■Shunt trip, SHT
▶▶ Shunt trip
SHT, Shunt trip
It make the breaker TRIPPED when any ac or dc voltage is applied to itself.
Ratings
Power
Wiring1. With earthing 2. Without earthing
SHT ratings
AF MCCB types Voltage ratingsTime rating
OperationAC/DC common use AC DC volt
12 *AC :
24 85~110% ofVBE 50, 60, 100, 255
48 380~450125
rated volt.
30AF~225AFVBS 30, 50, 60, 100, 225
60 440~480240VBH 30, 50, 100, 225
AC100~125/DC100~110 500~550VBL 30, 50, 100
AC200~240/DC200~220 Instantaneous
250 *DC :
VBE 400, 600, 800 75~125% of
VBS 400, 600, 80024~48
380~460 rated volt.400AF~800AF
VBH 400AC200~240/DC200~220
480~550
VBL 400, 600, 800AC100~125/DC100~110
Note : MCCB type shows its nominal type. For example VBS30 indicates VB32(2-pole), 33(3-pole) and 34(4-pole).
AF Voltage(V) Current Power(W)
AC/DC 12V 2.85A 34
AC/DC 24V 1.65A 40
AC/DC 48V 0.75A 36
AC/DC 60V 0.61A 36
AC 100~125V 0.37A 37
30~225AF DC 100~110V
DC 125V 0.3A 38
AC 200~240V 0.18A 35
DC 200~220V
DC 240V 0.15A 36
AC/DC 250V 0.14A 35
AF Voltage(V) Current Power(W)
AC 24V 14mA 0.3
DC 24V 15.4mA 0.4
AC 48V 14mA 0.7
DC 48V 16mA 0.8
AC 110 6 mA 0.7
400~800AF DC 110V 6.6mA 0.7
AC 220V 6.8mA 1.5
DC 200V 7.6mA 1.5
AC 440V 4.3mA 1.9
AC 480V 4.4mA 3.3
AC 550V 4.6mA 2.4
Power
Earth
Power
Ratings of internal accessories
32 VITZROTECH MCCB
■Under voltage trip, UVT
▶▶ Under voltage trip
UVT, Under voltage trip
It make the breaker TRIPPED when the control voltage disappears or falls.
Ratings
UVT ratings
AF MCCB types Voltage ratings Time On/Reset Trip
AC/DC common use AC DC rating voltage voltage
*AC : *AC :
VBE 50,60,100,255,400,600,800 24 380~450 85~110% of 20~70% of
30AF~800AF VBS 30,50,60,100,225,400,600,800 48 440~480Continuous
rated volt. rated volt.
VBH 30,50,100,225,400 100~110 *DC : *DC :
VBL 30,50,100,225,400,600,800 200~220 85~125% of 20~70% of
rated volt. rated volt.
Note : MCCB type shows its nominal type. For example VBS30 indicates VB32(2-pole), 33(3-pole) and 34(4-pole).
33Ratings of internal accessories
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
■ Installation of internal accessories
(1) Trip the CB
Push the mechanical trip button to trip the MCCB
(4) Insert the accessories
Auxiliary Switch, AXAlarm Switch, AL Shunt Trip, SHT
Insert it by followingpositions-Name plate : front-Hook : Line side
Under Voltage Trip,
UVT
Insert the coil first by following positions-Name plate : front-Hook : Line sideThen install the terminalblock on the side of CB
Close the front coverand fix it with 2 screws.
(2) Open the front cover
Unscrew to open the front cover. (2 screws)
(3) Grip the accessories (5) Closed the front cover
Hold the accessory as shown.
VBE 30AFEconomic type
34 VITZROTECH MCCB
Frame size
Type 2-pole
3-pole
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC 500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Mounting
Weight2-pole
3-pole
30AF
Economic type
VBE 32
VBE 33
5, 10, 15, (16), 20, (25), 30, (32)A
690V
-
-
2.5kA
2.5kA
5kA
-
8500operations
1500operations
Hydraulic Magnetic
Screw
0.33kg
0.47kg
■Dimensions, mm
81.3 96
50
81.3 96
75 45
80
60
652-pole 3-pole
VBE 32
VBE 33
Note : The rated currents in ( ) are available on request
35VBE 30AF
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
Temperature compensation curve
■Operating characteristic curve
Rated operation current ( x In)
min
.se
c.Tr
ippi
ng ti
me
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20
Instantaneoustrip range(900~1500%)
Total breaking time
Max.
Min.
Ope
ratin
g tim
e(%
)
300
250
200180160
120100
80
60
40
50300 10 20 5040
Ambient temperature(℃)
■Mounting dimensions, mm ■Panel cover cutting dimensions, mm
Terminal details
84
25
84
LC LC
LC LC
M4 M4
75
52
49
52
LC LC
LC LC
M5 X 1013
7.4
6
12
32
5.5
2-pole 3-pole 2-pole 3-pole
VBS 30AF, VBE 50/60AFStandard type / Economic type
36 VITZROTECH MCCB
30AF 50AF 60AF
Standard type Economic type Economic type
VBS 32 VBE 52 VBE 62
VBS 33 VBE 53 VBE 63
VBS 34 VBE 54 VBE 64
6, 10, 15, (16), 6, 10, 15, (16), 20, 60, (63)A
20, (25), 30, (32)A (25), 30, (32), 40, 50A
690V 690V 690V
2.5kA 2.5kA 2.5kA
5kA 5kA 5kA
10kA 10kA 10kA
10kA 10kA 10kA
18kA 18kA 18kA
2.5kA 2.5kA 2.5kA
8,500operations
1,500operations
Thermal Magnetic
Screw
0.45kg 0.45kg 0.45kg
0.65kg 0.65kg 0.65kg
0.85kg 0.85kg 0.85kg
VBS 32
VBS 33
VBS 34
VBE 52
VBE 53
VBE 54
VBE 62
VBE 63
VBE 64
2-pole4-pole3-pole
■Dimensions, mm
50
LC LC LC
LCLC
25
50
2525
50
75
25
50
115
130
130
115
130
115
2550
100 (79.5)
607.2
2-pole 3-pole 4-pole
Frame size
2-poleType
3-pole
4-pole
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC 500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Mounting
2-pole
Weight 3-pole
4-pole
Note : The rated currents in ( ) are available on request
37VBS 30AF, VBE 50/60AF
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
Temperature compensation curve
■Operating characteristic curve ■Combination for internal accessories
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.5 20
Rated operation current ( x In)
min
.se
c.Tr
ippi
ng ti
me 40A~100A
15A~30A
Min.
Max.
(800~1600%)
Instantaneoustrip range
Total breaking time
150
100
40300 10 20 5040
Rate
d cu
rren
t(%
)
Ambient temperature(℃)
For left cavity(except 2-pole)
(AX)
(AL)
(AX+AL)
For right cavity
○
●
○●
(AX)
(AL)
(AX+AL)
(SHT or UVT)
○
●
○●
□
■Mounting dimensions, mm ■Panel cover cutting dimensions, mm
Terminal details for 6 to 40A Terminal details for 50 to 60A
110.
5
110.
5
25
110.
5
25
LC LC LC
LC LC LC
M4 or 5
102
52
51
52
77
52LC LC LC
LC LC LC
24M5 X 1417
8.3
7.5
7
12.5
5.5
24M8 X 1417
8.3
7.5
7
15
9
2-pole 3-pole 4-pole 2-pole 3-pole 4-pole
VBH 30AF, VBS 50/60AF, VBE 100AFHigh interrupting capacity type / Standard type / Economic type
38 VITZROTECH MCCB
Frame size
Type 2-pole
3-pole
4-pole
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC 500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Mounting
2-pole
Weight 3-pole
4-pole
30AF 50AF 60AF 100AF
High interrupting Standard Standard Economictype type type type
VBH 32 VBS 52 VBS 62 VBE 102
VBH 33 VBS 53 VBS 63 VBE 103
VBH34 VBS 54 VBS 64 VBE 104
6, 10, 15, (16), 6, 10, 15, (16), 20,60, (63)A
60, (63),
20, (25), 30, (32)A (25), 30, (32), 40, 50A 75, (80), 100A
690V 690V 690V 690V
5kA 5kA 5kA 7.5kA
7.5kA 7.5kA 7.5kA 10kA
14kA 14kA 14kA 14kA
14kA 14kA 14kA 14kA
25kA 25kA 25kA 25kA
5kA 5kA 5kA 5kA
8,500operations
1,500operations
Thermal-Magnetic
Screw
0.45kg 0.45kg 0.45kg 0.45kg
0.65kg 0.65kg 0.65kg 0.65kg
0.85kg 0.85kg 0.85kg 0.85kg
VBH 32
VBH 33
VBH 34
VBS 52
VBS 53
VBS 54
VBS 62
VBS 63
VBS 64
VBE 102
VBE 103
VBE 104
2-pole4-pole3-pole
■Dimensions, mm
LC
25
50
115
130
LC
LC
25
5075
130
115
LC
LC
50
2525
130
115
2550100
(79.5)60
56
7.2
2-pole 3-pole 4-pole
Note : The rated currents in ( ) are available on request
39VBH 30AF, VBS 50/60AF, VBE 100AF
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
Temperature compensation curve
■Operating characteristic curve ■Combination for internal accessories
Rated operation current ( x In)
min
.se
c.Tr
ippi
ng ti
me
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.5 20
40A~100A
15A~30A
Min.
Max.
(800~1600%)
Instantaneoustrip range
Total breaking time
150
100
40300 10 20 5040
Rate
d cu
rren
t(%
)
Ambient temperature(℃)
For left cavity(except 2-pole)
(AX)
(AL)
(AX+AL)
For right cavity
○
●
○●
(AX)
(AL)
(AX+AL)
(SHT or UVT)
○
●
○●
□
■Mounting dimensions, mm ■Panel cover cutting dimensions, mm
Terminal details for 6 to 40A Terminal details for 50 to 100A
110.
5
LC
LC
110.
5
25
LC
LC
110.
5
25
LC
LC
M4 or 5
52
51
LC
LC
52
77
LC
LC
102
52LC
LC
17
8.3
7.5
24M5 X 14
7
12.5
5.5
17
8.3
7.5
24M8 X 14
7
15
9
2-pole 3-pole 4-pole 2-pole 3-pole 4-pole
VBH 50/60/100AF, VBS 100AFHigh interrupting capacity type / Standard type
40 VITZROTECH MCCB
VBH 52
VBH 53
VBH 54
VBH 62
VBH 63
VBH 64
VBH 102
VBH 103
VBH 104
VBS 102
VBS 103
VBS 104
2-pole4-pole3-pole
■Dimensions, mm
L L
30 30
L
30
50
155
135
60
30
155
135
90
60
135
155
60
120
30
82
56
608.5
LC
LC LC
2-pole 3-pole 4-pole
50AF 60AF 100AF 100AF
High interrupting High interrupting High interrupting Standard
type type type type
VBH 52 VBH 62 VBH 102 VBS 102
VBH 53 VBH 63 VBH 103 VBS 103
VBH 54 VBH 64 VBH 104 VBS 104
6, 10, 15, 15, (16), 20, 30,
(16), 20, (25), 60, (63)A (32), 40, 50, 60,
30, (32), 40, 50 (63), 75, (80), 100A
690V 690V 690V 690V
10kA 10kA 18kA 10kA
14kA 14kA 25kA 14kA
25kA 25kA 35kA 25kA
25kA 25kA 35kA 25kA
50kA 50kA 65kA 50kA
14kA 14kA 18kA 14kA
8,500operations
1,500operations
Thermal-Magnetic
Screw
0.7kg 0.7kg 0.7kg 0.7kg
1.0kg 1.0kg 1.0kg 1.0kg
1.2kg 1.2kg 1.2kg 1.2kg
Frame size
Type 2-pole
3-pole
4-pole
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC 500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Mounting
2-pole
Weight 3-pole
4-pole
Note : The rated currents in ( ) are available on request
41VBH 50/60/100AF, VBS 100AF
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
Temperature compensation curve
■Operating characteristic curve ■Combination for internal accessories
Trip
ping
tim
e
Rated operation current ( x In)
Rate
d cu
rren
t(%
)
Ambient temperature(℃)
For left cavity(except 2-pole)
For right cavity
■Mounting dimensions, mm ■Panel cover cutting dimensions, mm
Terminal details
L L L132
30
132
132
30
LC LC LC
M4
L L L52
60 102
52
77
52
LC LC LC
10
17 M8 X 14
8.5
16.5
24
8 9
2-pole 3-pole 4-pole 2-pole 3-pole 4-pole
(AX)
(AL)
(AX+AL)
○
●
○●
(AX)
(AL)
(AX+AL)
(SHT or UVT)
○
●
○●
□
VBE/VBS/VBH 225AFEconomic type / Standard type / High interrupting capacity type
42 VITZROTECH MCCB
Frame size
Type2-pole
3-pole
4-pole
Rated current
Rated insulation voltage AC
Rated breaking AC600V
capacity, Icu AC 500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Mounting
2-pole
Weight 3-pole
4-pole
225AF
Economic type Standard type High interrupting type
VBE 202 VBS 202 VBH 202
VBE 203 VBS 203 VBH 203
VBE 204 VBS 204 VBH 204
125, 150, (160), 175, (180), 200, 225A
690V 690V 690V
7.5kA 10kA 18kA
10kA 14kA 25kA
18kA 25kA 35kA
18kA 25kA 35kA
35kA 50kA 65kA
10kA 14kA 18kA
7000operations
1000operations
Thermal-Magnetic
Screw
1.1kg 1.1kg 1.1kg
1.2kg 1.2kg 1.2kg
1.5kg 1.5kg 1.5kg
VBE 202
VBE 203
VBE 204
VBS 202
VBS 203
VBS 204
VBH 202
VBH 203
VBH 204
4-pole2, 3-pole
■Dimensions, mm
80
35
70
105
165
144
LC
L L
LC
79
3535
3570
140
165
144
8
84
60
56
2, 3-pole 4-pole
Note : The rated currents in ( ) are available on request
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
43VBE/VBS/VBH 225AF
Temperature compensation curve
■Operating characteristic curve ■Combination for internal accessories
min
.se
c.
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20
Max.
Min.
Total breaking time
Instantaneoustrip range(800~1600%)
Rated operation current ( x In)
Trip
ping
tim
e
150
100
40300 10 20 5040
Rate
d cu
rren
t(%
)
Ambient temperature(℃)
For left cavity(except 2-pole)
(AX)
(AL)
(AX+AL)
For right cavity
○
●
○●
(AX)
(AL)
(AX+AL)
(SHT or UVT)
○
●
○●
□
■Mounting dimensions, mm ■Panel cover cutting dimensions, mm
Terminal details
L L
LC LC
126
35
126
35
M4
L L
LC LC
142
52
107
52
10.5
11
25.5 M8 X 14 24
25
8 9
2, 3-pole 4-pole 2, 3-pole 4-pole
400AFEconomic type / Standard type / High interrupting capacity type / Current limiting type
44 VITZROTECH MCCB
4-pole2, 3-pole
■Dimensions, mm
L L
103
95
154
184
225
257
88
140
225
257
4488
LC LC
2, 3-pole 4-pole
VBE 402
VBE 403
VBE 404
VBS 402
VBS 403
VBS 404
VBH 402
VBH 403
VBH 404
VBL 402
VBL 403
VBL 404
Frame size
Type 2-pole
3-pole
4-pole
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC 500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Mounting
2-pole
Weight 3-pole
4-pole
400AF
Economic Standard High interrupting Current limitingtype type type type
VBE 402 VBS 402 VBH 402 VBL 402
VBE 403 VBS 403 VBH 403 VBL 403
VBE 404 VBS 404 VBH 404 VBL 404
250, 300, (320), 350, 400A
690V 690V 690V 690V
18kA 22kA 30kA 35kA
18kA 25kA 35kA 50kA
25kA 35kA 50kA 65kA
25kA 35kA 50kA 65kA
35kA 50kA 85kA 125kA
10kA 20kA 40kA 40kA
4000operations
1000operations
Thermal-Magnetic
Screw
5.2kg 5.2kg 5.2kg 5.2kg
6.2kg 6.2kg 6.2kg 6.2kg
7.8kg 7.8kg 7.8kg 7.8kg
Note : The rated currents in ( ) are available on request
45400AF
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
Temperature compensation curve
■Operating characteristic curve ■Combination for internal accessories
min
.se
c.
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20
Instantaneoustrip range
(1100~1500%)
(250,350A)
Max.
Min.
(300,400A)Instantaneoustrip range
(900~1500%)
Total breaking time
Rated operation current ( x In)
Trip
ping
tim
e
150
100
40300 10 20 5040
Ambient temperature(℃)
Rate
d cu
rren
t(%
)
For left cavity(except 2-pole)
(AX 1 or 2 each)
(AL 1 or 2 each)
(SHT or UVT)
(Max. 2 each of AL and AX)
(SHT or UVT) +(Max. 2 each of AL and AX)
For right cavity
○ ○○
● ●●
□
●●○○
●●○○
■Mounting dimensions, mm ■Panel cover cutting dimensions, mm
Terminal details
4444
215
215
LC
L L
LCM5
142 186
100
100L L
LC LC
2913
30
29.5
1 10.5
37
2, 3-pole 4-pole 2, 3-pole 4-pole
□
(AX 1 or 2 each)
(AL 1 or 2 each)
(Max. 2 each of AL and AX)
(Max. 2 each of AL and AX)
○ ○○
● ●●
●●○○
●●○○
600AFEconomic type / Standard type / Current limiting type
46 VITZROTECH MCCB
Frame size
Type2-pole
3-pole
4-pole
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC 500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Mounting
2-pole
Weight 3-pole
4-pole
600AF
Economic type Standard type Current limiting type
VBE 602 VBS 602 VBL 602
VBE 603 VBS 603 VBL 603
VBE 604 VBS 604 VBL 604
500, 600, 630A
690V 690V 690V
22kA 35kA 42kA
25kA 45kA 50kA
35kA 50kA 65kA
35kA 50kA 65kA
50kA 100kA 125kA
20kA 40kA 40kA
4000operations
1000operations
Thermal-Magnetic
Screw
11kg 11kg 11kg
11.5kg 11.5kg 11.5kg
18.2kg 18.2kg 18.2kg
VBE 602
VBE 603
VBE 604
VBS 602
VBS 603
VBS 604
VBL 602
VBL 603
VBL 604
4-pole2, 3-pole
■Dimensions, mm
22
L L
70
210
140
44
275
244
140
44
275
244
103
98
13
LC LC
22
280 158
2, 3-pole 4-pole
47600AF
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
Temperature compensation curve
■Operating characteristic curve ■Combination for internal accessories
min
.se
c.
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20
(1100~1500%)
(500A)
(900~1500%)
(600A)
Max.
Min.
Instantaneoustrip range
Instantaneoustrip range
Total breaking time
Rated operation current ( x In)
Trip
ping
tim
e
150
100
40300 10 20 5040
Ambient temperature(℃)
Rate
d cu
rren
t(%
)
For left cavity(except 2-pole)
(AX 1 or 2 each)
(AL 1 or2 each)
(SHT or UVT)
(Max. 2 each of AL and AX)
(SHT or UVT) +(Max. 2 each of AL and AX)
For right cavity
○ ○○
● ●●
□
●●○○
●●○○
■Mounting dimensions, mm ■Panel cover cutting dimensions, mm
244
244
70 70
LC
L L
LC
M6
280210
100
100
LC
L L
LC
2, 3-pole 4-pole 2, 3-pole 4-pole
□
(AX 1 or 2 each)
(SHT or UVT)
(Max. 2 each of AX)
(SHT or UVT) +
(Max. 2 each of AX)
○ ○○
□
○○
○○ □
800AFEconomic type / Standard type / Current limiting type
48 VITZROTECH MCCB
Frame size
Type2-pole
3-pole
4-pole
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC 500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Mounting
2-pole
Weight 3-pole
4-pole
800AF
Economic type Standard type Current limiting type
VBE 802 VBS 802 VBL 802
VBE 803 VBS 803 VBL 803
VBE 804 VBS 804 VBL 804
700, 800A
690V 690V 690V
22kA 35kA 42kA
25kA 45kA 50kA
35kA 50kA 65kA
35kA 50kA 65kA
50kA 100kA 125kA
20kA 40kA 40kA
4000operations
1000operations
Thermal-Magnetic
Screw
11kg 11kg 11kg
11.5kg 11.5kg 11.5kg
18.2kg 18.2kg 18.2kg
4-pole2, 3-pole
■Dimensions, mm
22
L L 244
275
280
244
275
22140210
44 44
140 70
98
103
158
13
LC LC
2, 3-pole 4-pole
VBE 802
VBE 803
VBE 804
VBS 802
VBS 803
VBS 804
VBL 802
VBL 803
VBL 804
49800AF
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
Temperature compensation curve
■Operating characteristic curve ■Combination for internal accessories
min
.se
c.
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20
Max.
Min.
Total breaking time
(1100~1500%)
(700A)Instantaneoustrip range
(900~1500%)
(800A)Instantaneoustrip range
Rated operation current ( x In)
Trip
ping
tim
e
150
100
40300 10 20 5040
Ambient temperature(℃)
Rate
d cu
rren
t(%
)
For left cavity(except 2-pole)
(AX 1 or 2 each)
(AL 1 or 2 each)
(SHT or UVT)
(Max. 2 each of AL and AX)
(SHT or UVT) +(Max. 2 each of AL and AX)
For right cavity
○ ○○
● ●●
□
●●○○
●●○○
■Mounting dimensions, mm ■Panel cover cutting dimensions, mm
244
244
70 70
LC
L L
LC
M6
280210
100
100
LC
L L
LC
2, 3-pole 4-pole 2, 3-pole 4-pole
□
(AX 1 or2 each)
(SHT or UVT)
(Max. 2 each of AX)
(SHT or UVT) +
(Max. 2 each of AX)
○ ○○
□
○○
○○ □
VBL 50/100AFCurrent limiting type
50 VITZROTECH MCCB
Frame size
Type 2-pole
3-pole
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC 500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Mounting
Weight2-pole
3-pole
50AF 100AF
Current limiting type Current limiting type
VBL 52 VBL 102
VBL 53 VBL 103
10, 15, (16), 20, (25), 10, 15, (16), 20, (25), 30, (32),30, (32), 40, 50A 40, 50, 60, (63), 75, (80), 100A
690V 690V
35kA 35kA
42kA 42kA
65kA 65kA
65kA 65kA
100kA 100kA
40kA 40kA
8500operations
1500operations
Thermal-Magnetic
Screw
1.2kg 1.2kg
1.4kg 1.4kg
■Dimensions, mm
L 135
155
60
30
LC
104
79
8.5 82
30
L 155
135
60
90
LC
2-pole 3-pole
VBL 52
VBL 53
VBL 102
VBL 103
Note : The rated currents in ( ) are available on request
51VBL 50/100AF
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
■Operating characteristic curve ■Combination for internal accessories
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20
Max.(30A)
Max.(15,20A)
Min.(30A)
Min.(15.20A)
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20
Max.
Min.
min
.se
c.m
in.
sec.
(1000~2000%)
Instantaneoustrip range
Total breaking time
(900~1500%)
Instantaneoustrip range
Rated operation current ( x In)
Trip
ping
tim
e
Rated operation current ( x In)
Trip
ping
tim
e
150
100
50300 10 20 5040
Ambient temperature(℃)
Rate
d cu
rren
t(%
)
For left cavity(except 2-pole)
(AX)
(AL)
(AX+AL)
For right cavity
○
●
○●
(AX)
(AL)
(AX+AL)
(SHT or UVT)
○
●
○●
□
■Mounting dimensions, mm ■Panel cover cutting dimensions, mm
Terminal details
L L132
30
132
LC LCM4
L L52
60
52
77
LC LC
10
17 M8 X 14
8.5
16.5
24
8 9
2-pole 3-pole 2-pole 3-pole
Temperature compensation curve
VBL 225AFCurrent limiting type
52 VITZROTECH MCCB
Frame size
Type 2-pole
3-pole
Rated current
Rated insulation voltage AC
Rated breaking AC 600V
capacity, Icu AC 500V
KSC8321(Sym) AC 460V
IEC60947-2(Icu) AC 415V
Ics=0.5xIcu AC 220/240V
DC 250V
No. of Without currentoperation cycle With current
Automatic tripping device
Mounting
Weight2-pole
3-pole
225AF
Current limiting type
VBL 202
VBL 203
125, 150, (160), 175, (180), 200, 225A
690V
35kA
42kA
65kA
65kA
100kA
40kA
7000operations
1000operations
Thermal-Magnetic
Screw
2.0kg
2.1kg
■Dimensions, mm
80
L
35
144
165
105
70
LC
96
99
122
8
2, 3-pole
VBL 202
VBL 203
Note : The rated currents in ( ) are available on request
53VBL 225AF
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
Temperature compensation curve
■Operating characteristic curve ■Combination for internal accessories
min
.se
c.
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20
Max.
Min.
(800~1500%)
Instantaneoustrip range
Total breaking time
Rated operation current ( x In)
Trip
ping
tim
e
150
100
50300 10 20 5040
Ambient temperature(℃)
Rate
d cu
rren
t(%
)
For left cavity(except 2-pole)
(AX)
(AL)
(AX+AL)
or right cavity
○
●
○●
(AX)
(AL)
(AX+AL)
(SHT or UVT)
○
●
○●
□
■Mounting dimensions, mm ■Panel cover cutting dimensions, mm
Terminal details
L
35
126
LCM4
L
107
52
LC
25.5
10.5
24M8 X 14
11
25
8 9
Miniature Circuit Breaker
MCB
VBK TYPE
54 VITZROTECH MCCB
■Dimensions, mm
85–1
.5
18
54
85–1
.5
18
36 36
18
71–1.5
85–1
.5
45 35
5.544
1-pole 2-pole 3-pole
■Operating characteristic curve
min
.se
c.
10
0.4
0.60.8
0.080.06
0.1
0.2
0.04
4
2
1
1
0.002
0.001
0.02
0.010.008
0.004
0.006
80
815
30
4836
4
20
24
60
1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20
Min.
Max.
Rated operation current ( x In)
Trip
ping
tim
e
VBK 61
VBK 62
VBK 63
Frame size
Number of pole
Type
Rated current
Rated insulation voltage AC
Rated breaking AC 380V
capacity, Icu
KSC8321(Sym) AC 220/240V
Automatic tripping device
No. of operation cycle
Weight
Mounting
60AF
1-pole 2-pole 3-pole
VBK 61 VBK 62 VBK 63
6, 10, 15, (16), 20, (25), 6, 10, 15, (16), 20, (25),
30, (32), 40, 50A 30, (32), 40, 50, 60A
220/240V 460V
- - 2.5kA
5kA 5kA 5kA
Thermal-Magnetic
20000operations(mechanical/electrical)
0.12kg 0.24kg 0.36kg
DIN rail
Note : The rated currents in ( ) are available on request
55Miniature circuit breaker
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
■Dimensions, mm11
3–2.
7
25–1
50–1.3
75–1.5
25–1
50–1.3
95–1
.5
25–1
95–1
.5
95–1
.5
77–1.5
63.5–1.5
100–
2.7
1-pole 2-pole 3-pole
■Operating characteristic curve
min
.se
c.
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20
32A up to
Max.
Min.
Instantaneoustrip range
Total breaking time
32A up to
Rated operation current ( x In)
Trip
ping
tim
e
VBF TYPE
VBF 51
VBF 52
VBF 53
VBF 101
VBF 102
VBF 103
Frame size
Number of pole
Type
Rated current
Rated insulation voltage AC
Rated breaking
capacity, Icu AC 220/240V
KSC8321(Sym)
Automatic tripping device
Weight
Mounting
50AF 100AF
1-pole 2-pole 3-pole 1-pole 2-pole 3-pole
VBF 51 VBF 52 VBF 53 VBF 101 VBF 102 VBF 103
10, 15, 20, 30, 40, 50A 60, 75, 100A
220/240V
2.5kA 5kA 5kA 2.5kA 5kA 5kA
Thermal-Magnetic Thermal-Magnetic
0.13kg 0.26kg 0.38kg 0.13kg 0.26kg 0.38kg
Clamping Clamping
Panel board MCCBPanel board type MCCB
56 VITZROTECH MCCB
VBP TYPE
■Dimensions, mm
81.3 96
50
81.3 96
7545
80
60
65
2-pole(30/50AF) 3-pole(2,3-pole in case of 100AF)
Frame size
Number of pole
Type
Rated current
Rated insulation voltage AC
Rated breaking AC 460V
capacity, Icu AC 415V
KSC8321(Sym) AC 380V
IEC60947-2(Icu) AC 240V
Ics=0.5xIcu AC 220V
AC 110V
Automatic tripping device
Weight
Mounting Standard
30AF 50AF 100AF
2-pole 3-pole 2-pole 3-pole 2-pole 3-pole
VBP 32 VBP 33 VBP 52 VBP 53 VBP 102 VBP 103
5, 10, 15, (16), 15, (16), 20, (25), 60, (63),
20, (25), 30, (32)A 30, (32), 40, 50A 75, (80), 100A
690V
2.5kA
2.5kA
2.5kA
5kA
5kA
5kA
Hydraulic magnetic
0.33kg 0.47kg 0.33kg 0.47kg 0.5kg 0.5kg
Screw/DIN rail
VBP 32
VBP 33
VBP 52
VBP 53
VBP 102
VBP 103
3-pole 2-pole(30/50AF)
Note : The rated currents in ( ) are available on request
57Panel board MCCB
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
Temperature compensation curve
■Operating characteristic curve
(30, 50AF) (100AF)
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20
Max.
Min.
min
.se
c.
Total breaking time
Rated operation current ( x In)
Trip
ping
tim
e
300
250
200
180
160
120
100
80
60
40
50300 10 20 5040
Ope
ratin
g tim
e(%
)
Ambient temperature(℃)
Temperature compensation curve
■Operating characteristic curve
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.5 20
Max.
Min.
min
.se
c
Total breaking time
Rated operation current ( x In)
Trip
ping
tim
e
300
250
200180160
120100
80
60
40
50300 10 20 5040
Ope
ratin
g tim
e(%
)
Ambient temperature(℃)
■Mounting dimensions, mm ■Panel cover cutting dimensions, mm
Terminal details
84
25
84
LC LC
LC LC
M4
75
52
49
52
LC LC
LC LC
M5 X 1013
7.4
6
32
2-pole(30/50AF) 3-pole(2,3-pole in case of 100AF) 2-pole(30/50AF) 3-pole(2,3-pole in case of 100AF)
Compact ELCBPanel board type
58 VITZROTECH MCCB
VLP TYPE
■Dimensions, mm
81.3 96
50
81.3 96
7545
80
60
65
2-pole(30/50AF)
3-pole 2-pole(30/50AF)
3-pole(2,3-pole in case of 100AF)
Frame size
Type
Number of pole
Rated current
Rated insulation voltage AC
Rated breakingAC 460V
capacity, Icu
KSC8321(Sym) AC 220V
Protection function
Rated sensitive current
Operation time
Automatic overcurrenttripping device ground fault
Weight
Mounting
30AF 50AF 100AF
VLP 32 VLP 33 VLP 52 VLP 53 VLP 102 VLP 103
2P2E 3P3E 2P2E 3P3E 2P2E 3P3E
5, 10, 15, (16), 15, (16), 20, (25), 60, (63),
20, (25), 30, (32)A 30, (32), 40, 50A 75, (80), 100A
220V 460V 220V 460V 220V 460V
- 2.5kA - 2.5kA - 2.5kA
5kA 5kA 5kA 5kA 5kA 5kA
Ground fault, Overload, Short-circuit
30mA
0.03sec
Hydraulic magnetic
Electronic
0.33kg 0.47kg 0.33kg 0.47kg 0.5kg 0.5kg
Screw/DIN rail
VLP 32
VLP 33
VLP 52
VLP 53
VLP 102
VLP 103
Note : The rated currents in ( ) are available on request
59Compact ELCB
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
Temperature compensation curve
■Operating characteristic curve
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.25 20
min
.se
c.
Max.
Min.
Total breaking time
Rated operation current ( x In)
Trip
ping
tim
e
300
250
200
180
160
120
100
80
60
40
50300 10 20 5040
Ope
ratin
g tim
e(%
)
Ambient temperature(℃)
Temperature compensation curve
■Operating characteristic curve
6
40
20
10
68
4
2
0.80.6
1
0.4
4
2
1
0.02
0.01
0.2
0.10.08
0.04
0.06
240
100120150
60
40
20
80
810
180
1 10030 40 6050 80102 3 4 5 76 8 9 151.5 20
Max.
Min.
min
.se
c
Total breaking time
Rated operation current ( x In)
Trip
ping
tim
e
300
250
200180160
120100
80
60
40
50300 10 20 5040
Ope
ratin
g tim
e(%
)
Ambient temperature(℃)
■Mounting dimensions, mm ■Panel cover cutting dimensions, mm
Terminal details
84
25
84
LC LC
LC LC
M4
84
25
84
LC LC
LC LC
M5 X 1013
7.4
6
32
2-pole(30/50AF) 3-pole(2,3-pole in case of 100AF) 2-pole(30/50AF) 3-pole(2,3-pole in case of 100AF)
(100AF)
Quick selection table
Frame size
VBE series
Economic
VBS series
Standard
VBH seriesHigh interrupting
VBL series
Current limiting
30AF 50AF 60AF
Type Rated current kA Type Rated current kA Type Rated current kA
VBE 32 5, 10, 15, 220V
VBE 52220V
VBE 62220V
(16), 20, (25),5kA 18kA 18kA
VBE 33 30, (32)460V
VBE 53
6, 10, 15,460V
VBE 63460V
2.5kA(16), 20, (25),
10kA60, (63)
10kA
- - - VBE 54
30, (32), 40, 50600V
VBE 64600V
2.5kA 2.5kA
VBS 32220V
VBS 52220V
VBS 62220V
18kA 25kA 25kA
VBS 33
6, 15, (16),460V
VBS 53
6, 10, 15,460V
VBS 63460V
20, (25),10kA
(16), 20, (25),14kA
60, (63)14kA
VBS 34
30, (32)600V
VBS 54
30, (32), 40, 50600V
VBS 64600V
2.5kA 5kA 5kA
VBH 32220V
VBH 52220V
VBH 62220V
25kA 50kA 50kA
VBH 33
6, 15, (16),460V
VBH 53
6, 10, 15,460V
VBH 63460V
20, (25),14kA
(16), 20, (25),25kA
60, (63)25kA
VBH 34
30, (32) 600V
VBH 54
30, (32), 40, 50600V
VBH 64600V
5kA 10kA 10kA
- - VBL 52220V
- -6, 10, 15,100kA
- - - VBL 53
(16), 20, (25),460V
- - -30, (32), 40, 5065kA
- - - -600V
- -35kA
Frame size
F. K. P type
MCB VBF type
50AF 100AF
Type Rated current kA Type Rated current kA
VBF 51220V
VBF 101220V
10, 15, (16),2.5kA 2.5kA
VBF 52 20(25), 30(32), 220V
VBF 10260(63), 220V
40, 505kA 75, (80), 100 5kA
VBF 53220V
VBF 103220V
5kA 5kA
60 VITZROTECH MCCB
Frame
P type
ELCB VLP type
30AF 50AF 100AF
Type Rated current kA Type Rated current kA Type Rated current kA
VLP 326, 10, 220V
VLP 526, 10, 220V
VLP 102 60, (63),220V
15, (16), 5kA 15, (16), 5kA75, (80),
5kA
VLP 3320, (25), 460V
VLP 5320, (25), 30, 460V
VLP 103 100460V
30, (32) 2.5kA (32), 40, 50 2.5kA 2.5kA
1. MCCB
2. MCCB and compact MCCB
3. Compact ELCB
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
6161Quick selection table
100AF 225AF 400AF 600AF 800AF
Type Rated current kA Type Rated current kA Type Rated current kA Type Rated current kA Type Rated current kA
VBE 102 10, 15, (16), 220V
VBE 202220V
VBE 402220V
VBE 602220V
VBE 802220V
20, (25), 30,25kA 125, 150, 35kA 35kA 50kA 50kA
VBE 103 (32), 40, 50,460V
VBE 203(160), 175, 460V
VBE 403
250, 300,460V
VBE 603500, 460V
VBE 803 700, 800460V
60, (63), 75,14kA (180), 200, 18kA
(320), 350, 25kA 600, (630) 35kA 35kA
VBE 104 (80), 100600V
VBE 204225 600V
VBE 404
400600V
VBE 604600V
VBE 804600V
7.5kA 7.5kA 18kA 22kA 22kA
VBS 102 10, 15, (16),220V
VBS 202220V
VBS 402220V
VBS 602220V
VBS 802220V
20, (25), 30,50kA 125, 150, 50kA 50kA 100kA 100kA
VBS 103 (32), 40, 50,460V
VBS 203(160), 175, 460V
VBS 403
250, 300,460V
VBS 603500, 460V
VBS 803 700, 800460V
60, (63), 75,25kA (180), 200, 25kA
(320), 350,35kA 600, (630) 50kA 50kA
VBS 104 (80), 100600V
VBS 204225 600V
VBS 404
400600V
VBS 604600V
VBS 804600V
10kA 10kA 22kA 35kA 35kA
VBH 102 10, 15, (16),220V
VBH 202220V
VBH 402220V
- - - -
20, (25), 30,65kA 125, 150, 65kA 85kA
VBH 103 (32), 40, 50,460V
VBH 203(160), 175, 460V
VBH 403
250, 300,460V
- - - - - -
60, (63), 75,35kA (180), 200, 35kA
(320), 350,50kA
VBH 104 (80), 100600V
VBH 204225 600V
VBH 404
400600V
- - - -18kA 18kA 30kA
VBL 10210, 15, (16), 220V
VBL 202125, 150, 220V
VBL 402220V
VBL 602220V
VBL 802220V
20, (25), 30, (32), 100kA (160), 175, 125kA 125kA 125kA 125kA
VBL 10340, 50, 60, (63), 460V
VBL 203(180), 200, 460V
VBL 403
250, 300,460V
VBL 603500, 460V
VBL 803 700, 800460V
75, (80), 100 65kA 225 65kA(320), 350,
65kA 600, (630) 65kA 65kA
- -600V
- -600V
VBL 404
400600V
VBL 604600V
VBL 804600V
35kA 35kA 35kA 42kA 42kA
MCB VBK type MCB VBK type
60AF 30AF 50AF 100AF
Type Rated current kA Type Rated current kA Type Rated current kA Type Rated current kA
VBK 61220V
VBP 325, 10, 220V
VBP 526, 10, 15, 220V
VBP 102 220V
6, 10,5kA 15, (16), 5kA (16), 20, (25), 5kA 60, (63), 5kA
VBK 62
15, (16),220V
VBP 3320, (25), 460V
VBP 5330, (32), 40, 460V
VBP 103 75, (80), 100 460V
20, (25),5kA 30, (32) 2.5kA 50 2.5kA 2.5kA
VBK 63
30, (32),380V
40, 502.5kA
Note : The rated currents in ( ) are available on request
MCCB application
62 VITZROTECH MCCB
■Application for transformer protection
3∅∅ Transformer capacity (KVA)
Breaking capacity(KA) (sym)
30
50
60
100
Frame (A)
225
400
600
800
VBP 33 VBS 32 VBH 32VBE 32 VBS 33 VBH 33VBE 33 VBS 34 VBH 34
VBP 52VBE 52 VBS 52 VBH 52
VBL 52VBP 53
VBE 53 VBS 53 VBH 53VBL 53VBE 54 VBS 54 VBH 54
VBE 62 VBS 62 VBH 62VBE 63 VBS 63 VBH 63VBE 64 VBS 64 VBH 64
VBP 102VBE 102 VBS 102 VBH 102 VBL 102
VBP 103VBE 103 VBS 103 VBH 103 VBL 103VBE 104 VBS 104 VBH 104 VBL 104VBE 202 VBS 202 VBH 2O2 VBL 202VBE 203 VBS 203 VBH 203 VBL 203VBE 204 VBS 204 VBH 204 VBL 204VBE 402 VBS 402 VBH 402 VBL 402VBE 403 VBS 403 VBH 403 VBL 403VBE 404 VBS 404 VBH 404 VBL 404
VBE 602 VBS 602 VBL 602 VBE 603 VBS 603 VBL 603VBE 604 VBS 604 VBL 604VBE 802 VBS 802 VBL 802VBE 803 VBS 803 VBL 803VBE 804 VBS 804 VBL 804
2.5 5 10 14 18 25 35 42 50 65 85
~50 75~200 ~300 ~750 ~1500 ~2000 ~3000
AC 415/460V
3∅∅ Transformer capacity(KVA)
1∅∅ Transformer capacity(KVA)
Breaking capacity(KA) (sym)
30
50
60
100Frame(A)
225
400
600
800
VBE 32 VBE 33VBS 32 VBH 32
VBP 32 VBP 33VBS 33 VBH 33VBS 34 VBH 34
VBF 52VBE 52 VBS 52 VBH 52
VBF 51VBF 53
VBE 53 VBS 53 VBH 53VBL 52
VBP 52VBE 54 VBS 54 VBH 54
VBL 53VBP 53
VBK 61VBE 62 VBS 62 VBH 62
VBK 62VBE 63 VBS 63 VBH 63VBE 64 VBS 64 VBH 64
VBF 102 VBE 102 VBS 102 VBH 102 VBL 102VBF 101 VBF 103 VBE 103 VBS 103 VBH 103 VBL 103
VBP 102 VBE 104 VBS 104 VBH 104 VBL 104VBE 202 VBS 202 VBH 202 VBL 202 VBE 203 VBS 203 VBH 203 VBL 203VBE 204 VBS 204 VBH 204 VBL 204VBE 402 VBS 402 VBH 402 VBL 402VBE 403 VBS 403 VBH 403 VBL 403VBE 404 VBS 404 VBH 404 VBL 404
VBE 602 VBS 602 VBL 602VBE 603 VBS 603 VBL 603VBE 604 VBS 604 VBL 604VBE 802 VBS 802 VBL 802VBE 803 VBS 803 VBL 803VBE 804 VBS 804 VBL 804
2.5 5 10 18 25 30 35 42 50 65 85 100 125
~30 ~50 75~100 150~300 500~750 ~1500 ~2000
~16 ~30 ~50 ~150 ~300
AC 220/240V
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
2.5 5 10 14 18 25 35 42 50 65 85
■Application for protection of lighting and heating circuits
Full load current MCCB(A) Rated current(A)12 1516 2024 3032 4040 50
48 60
60 7580 100
100 125120 150140 175160 200180 225200 250240 300280 350320 400400 500480 600560 700640 800
10VBE 32 VBE 33VBP 32 VBP 33
VBK 61 VBK 62VBE 62VBE 63VBE 64
VBE 102VBE 103VBE 104
VBS 32VBS 33VBS 34
VBH 32VBH 33VBH 34
VBH 52VBH 53VBH 54
VBL 52VBL 53
Breaking capacity(KA)2.5 5 10 18 25 30 35 42 50 65 85 100 125
AC220/240V
VBE 52VBE 53VBE 54
VBS 52VBS 53VBS 54VBS 62VBS 63VBS 64
VBH 62 VBH 63 VBH 64 VBH 102VBH 103VBH 104
VBL 102 VBL 103 VBL 104VBS 102 VBS 103 VBS 104
VBF 102VBF 103VBP 102
VBF 51
VBF 101
VBE 202VBE 203VBE 204
VBE 402VBE 403VBE 404
VBE 602 VBE 603 VBE 604
VBE 802 VBE 803 VBE 804
VBS 202VBS 203VBS 204
VBS 402VBS 403VBS 404
VBH 202VBH 203VBH 204
VBH 402VBH 403VBH 404
VBS 602VBS 603VBS 604
VBL 602VBL 603VBL 604VBL 802VBL 803VBL 804
VBS 802VBS 803VBS 804
VBL 102
VBL 103
VBL 104
VBL 402VBL 403VBL 404
VBF 52VBF 53VBP 52VBP 53
Full load current MCCB(A) Rated current(A)12 1516 2024 3032 4040 50
48 60
60 7580 100
100 125120 150140 175160 200180 225200 250240 300280 350320 400400 500480 600560 700640 800
VBP 33VBE 32VBE 33
VBP 52VBP 53
VBE 62 VBE 63 VBE 64
VBE 52VBE 53VBE 54
VBS 52VBS 53VBS 54VBS 62VBS 63VBS 64
VBH 62VBH 63VBH 64VBS 102VBS 103VBS 104
VBH 202VBH 203VBH 204
VBS 202VBS 203VBS 204
VBL 202VBL 203VBL 204
VBE 102VBE 103VBE 104
VBE 202VBE 203VBE 204
VBE 402VBE 403VBE 404
VBS 402VBS 403VBS 404
VBH 402VBH 403VBH 404
VBS 602VBS 603VBS 604VBS 802VBS 803VBS 804
VBL 802VBL 803VBL 804
VBL 602VBL 603VBL 604
VBL 402VBL 403VBL 404
VBE 602 VBE 603 VBE 604
VBE 802 VBE 803 VBE 804
VBP 102VBP 103
VBH 102VBH 103VBH 104
VBL 102VBL 103VBL 104
VBS 32VBS 33VBS 34
VBH 32VBH 33VBH 34
VBH 52VBH 53VBH 54
VBL 52VBL 53
AC415/460V
MCCB application 63
MCCB application
64 VITZROTECH MCCB
■Application for motor circuits
3 15
4.5 20
6.3 30
8.2 40
12 50
15.7 75
19.5 90
23.2 100
30 125
37.5 150
45 175
52.5 200
63.7 250
75 300
86.2 350
97.5 400
112.5 450
125 500
150 600
175 700
200 800
The largest motor(kW) : Motor capacity(kW) / Full load current(A)
0.75 1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55 75 90 110 132
4.8 8 11.1 17.4 26 34 48 65 79 93 125 160 190 230 310 360 440 500
20 30 30
30 30 30 50
40 40 40 50 60
50 50 50 50 75 100
60 60 60 60 75 100
100 100 100 100 100 100 125 150
100 100 100 100 100 100 125 150 175
125 125 125 125 125 125 125 150 175 200
150 150 150 150 150 150 150 150 175 225
175 175 175 175 175 175 175 175 200 225 300
200 200 200 200 200 200 200 200 200 225 300 400
225 225 225 225 225 225 225 225 225 225 300 400 500
300 300 300 300 300 300 300 300 300 300 300 400 500 500
350 350 350 350 350 350 350 350 350 350 350 400 500 500
400 400 400 400 400 400 400 400 400 400 400 400 500 500 600
500 500 500 500 500 500 500 500 500 500 500 500 500 500 600 700
500 500 500 500 500 500 500 500 500 500 500 500 500 500 700 700
600 600 600 600 600 600 600 600 600 600 600 600 600 600 700 700 1000
700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 800 1000 1000
800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 1000 1000
900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 1000 1000
Below table show the typical method to decide main MCCB rating in the circuit including motors.
Load descriptionAllowed current for the wire : Iw Rated current of the breaker : Ib
(IL: Other load, IM: Motor)
ΣIM�ΣIL IW�ΣIM+ΣIL
ΣIM�ΣIL, ΣIM�50A IW�1.25ΣIM+ΣIL
ΣIM�ΣIL, ΣIM�50A IW�1.1ΣIM+ΣIL
Select the smaller value between
Ib≤3ΣIM+ΣIL and Ib≤2.5IW
But in case Iw��100 and there is
no standard rated current of
a breaker suitable to the value.
You are allowed to selected
the breaker one step larger.
Application of rated current of main MCCB in the circuit of 3∅∅induction motors at AC200/220V, (A)
In case
the load
contains
a motor
or motors
Sum. ofload
current A
Sum of
Max. kWfor motor(s)(kW or smaller)
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
3 7.5
4.5 10
6.3 15
8.2 20
12 25
15.7 38
19.5 45
23.2 50
30 63
37.5 75
45 88
52.5 100
63.7 125
75 150
86.2 175
97.5 200
112.5 225
125 250
150 300
175 350
200 400
250 500
300 600
350 700
400 700
450 900
500 1000
The largest motor(kW) : Motor capacity(kW) / Full load current(A)
0.75 1.5 2.2 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55 75 90 110 132
2.4 4 5.5 8.7 13 17 24 32 39 46 62 80 95 115 155 180 220 250
15 15 15
15 15 15 30
20 20 20 30 40
30 30 30 30 40 50
30 30 30 30 40 50
50 50 50 50 50 50 60 75
50 50 50 50 50 50 60 75 100
60 60 60 60 60 60 60 75 100 125
75 75 75 75 75 75 75 100 100 125
100 100 100 100 100 100 100 100 100 125 150
100 100 100 100 100 100 100 100 100 125 150 175
125 125 125 125 125 125 125 125 125 125 150 175 225
150 150 150 150 150 150 150 150 150 150 150 200 225 250
175 175 175 175 175 175 175 175 175 175 175 200 225 250
200 200 200 200 200 200 200 200 200 200 200 200 225 300 350
225 225 225 225 225 225 225 225 225 225 225 225 225 300 350 400
250 250 250 250 250 250 250 250 250 250 250 250 250 300 350 400
300 300 300 300 300 300 300 300 300 300 300 300 300 300 350 400 500
350 350 350 350 350 350 350 350 350 350 350 350 350 350 350 400 500 500
400 400 400 400 400 400 400 400 400 400 400 400 400 400 400 500 500 500
500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500
600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600
700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700
800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800 800
800 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900 900
1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200 1200
Application of rated current of main MCCB in the circuit of 3∅∅ induction motors at AC415/460V, (A)
MCCB application 65
Sum. ofload
current A
Sum of
Max. kWfor motor(s)(kW or smaller)
MCCB application
66 VITZROTECH MCCB
Spot welder MCCB
Capacity(kVA) Max. Input(kVA) 1∅∅ 220V 1∅∅ 400V
VBE 102/100 VBE 52/5015 35
VBS 102/100 VBS 52/50
30 65VBE 202/125 VBE 102/100
VBS 202/125 VBS 102/100
VBE 202/225 VBE 202/12555 140
VBS 202/225 ABS 202/125
■Application of MCCB for welder circuit
■Application of MCCB for capacitor circuitRated current of MCCB(A)
1∅∅ 3∅∅
220V 440V 220V 440V
50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz
50 50 30 30 40 50 30 20
75 60 40 40 50 50 30 30
100 100 60 50 60 60 40 40
175 175 75 60 100 75 50 40
200 200 100 100 100 100 50 50
225 225 100 100 175 150 60 60
400 400 150 125 200 200 100 75
400 400 175 175 225 225 100 100
600 500 300 300 400 400 150 150
800 800 400 400 400 400 225 225
1000 *1 1000 *1 600 500 600 600 300 300
- 1200 *1 800 800 800 800 400 400
- - 1000 1000 - - 600 600
- - - 1200 - - - 800
capacitor rating
(kVA)
5
10
15
20
25
30
40
50
75
100
150
200
300
400
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
6767MCCB application
■Application of MCCB for primary of transformers
factor of inrush current(K) = the 1st peak value of inrush current
the peak value of rated primary current
The life span of the switch on the primary side is greatly affected by the excessive amount of the exciting inrush current use of a contactor is recommended.
AC220V 1∅∅ transformer
VBE 52/40
VBS 52/40
VBE 102/60
VBS 102/60
VBE 102/75
VBS 102/75
VBE 202/150
VBS 202/150VBE 202/200
VBS 202/200
VBE 402/350
VBE 602/600
VBS 602/600
VBE 402/400
23.8 35.7 47.6 71.5 95.3 143 238 357
5 7.5 10 15 20 30 50 75
VBS 52/30
VBE 52/30VBS 52/40
VBE 52/40
VBS 52/50
VBE 52/50
VBE 102/75
VBS 102/75
VBS 52/50
VBE 52/50
VBE 102/60
VBS 102/60
VBE 102/100
VBS 102/100
VBE 202/125
VBS 202/125VBE 202/175
VBS 202/175VBS 402/300
VBS 402/400
factor of inrush
current(K)
30
25
20
rated primary current(A)
transformer capacity(kVA)
AC440V 1∅∅ transformer
VBE 32/20
VBS 52/20
11.9 17.6 23.8 35.7 47.6 71.5 119 179 238
5 7.5 10 15 20 30 50 75 100
VBE 32/15
VBS 32/15
VBS 32/20
VBS 32/20 VBS 32/30
VBS 52/30VBE 52/40
VBS 52/40
VBS 52/50
VBE 52/50
VBS 102/75
VBE 102/75
VBE 202/150
VBS 202/150
VBE 202/225
VBS 202/225
VBE 402/300
VBS 402/350VBS 52/50
VBE 52/50
VBS 102/60
VBE 102/60
VBS 32/30
VBE 32/30VBE 52/40
VBS 52/40
VBE 102/60
VBS 102/60
VBS 102/75
VBE 102/75
VBS 202/150
VBE 202/150
VBE 202/175VBS 202/175
VBE 402/300VBS 402/300
factor of inrush
current(K)
30
25
20
rated primary current(A)
transformer capacity(kVA)
MCCB application
68 VITZROTECH MCCB
AC220V 3∅∅ transformer
VBS 33/20
VBS 53/20
13.8 20.7 27.5 41.3 55 82.5 138 207 275
5 7.5 10 15 20 30 50 75 100
VBS 33/15
VBS 53/15
VBS 33/30
VBS 53/30 VBS 33/30
VBS 53/30
VBS 53/50
VBE 53/50VBS 103/60
VBE 103/60
VBE 103/100
VBS 103/100
VBE 203/175
VBS 203/175
VBL 203/175VBE 403/250
VBS 403/250
VBE 403/350
VBS 403/350
VBE 403/300
VBS 403/300
VBE 403/400VBS 403/400
VBS 103/75
VBE 103/75
VBE 33/40
VBE 53/40VBE 53/40
VBS 53/40
VBE 103/60
VBS 103/60
VBS 103/100
VBE 103/100
VBH 103/100
VBE 203/200VBS 203/200VBH 203/200VBL 203/200
VBE 403/350VBS 403/350
factor of inrush
current(K)
30
25
20
rated primary current(A)
transformer capacity(kVA)
AC440V 3∅∅ transformer
6.9 10.3 13.8 20.7 27.5 41.3 68.8 103 138
5 7.5 10 15 20 30 50 75 100
VBS 33/15
VBE 53/15
VBS 33/15
VBS 53/15
VBS 33/15
VBS 53/15
VBS 33/30
VBS 53/30
VBS 33/30
VBS 53/30
VBS 53/50
VBE 103/100
VBS 103/100
VBE 103/75
VBS 103/75
VBE 203/125
VBS 203/125
VBL 203/125
VBE 203/175
VBS 203/175
VBL 203/175
VBE 203/200VBS 203/200VBL 203/200
VBS 33/20
VBS 53/20
VBE 33/20
VBS 53/20
VBE 53/40
VBS 53/40
VBS 53/40
VBE 53/40
VBE 103/60
VBS 103/60
VBS 103/100VBE 203/150VBS 203/150VBL 203/150
factor of inrush
current(K)
30
25
20
rated primary current(A)
transformer capacity(kVA)
■Application of MCCB for primary of transformers
factor of inrush current(K) = the 1st peak value of inrush current
the peak value of rated primary current
The life span of the switch on the primary side is greatly affected by the excessive amount of the exciting inrush current use of a contactor is recommended.
69MCCB application
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
■Application of MCCB for a DC circuit
Applicable type DC application
VBP 33
VBP 53 VBP 103
NO
VBS 32, 33, 34 VBE 102, 103, 104 VBE 402, 403, 404 VBE 802, 803, 804
VBH 32, 33, 34 VBS 102, 103, 104 VBS 402, 403, 404 VBS 802, 803, 804
VBE 52, 53, 54 VBH 102, 103, 104 VBH 402, 403, 404 VBH 802, 803, 804
VBS 52, 53, 54 VBL 102, 103, 104 VBL 402, 403, 404 VBL 802, 803, 804
VBH 52, 53, 54 VBE 202, 203, 204 VBE 602, 603, 604 YES
VBL 52, 53, 54 VBS 202, 203, 204 VBS 602, 603, 604
VBE 62, 63, 64 VBH 202, 203, 204 VBH 602, 603, 604
VBS 62, 63, 64 VBL 202, 203, 204 VBL 602, 603, 604
VBH 62, 63, 64
Tripping method
Hydraulic
magnetic
Thermal
magnetic
DC 500V applicationGenerally DC250V is the maximum voltage for the MCCBs to interrupt in DC circuit.If the circuit is made by using 3-pole in series as shown below MCCBs can be applied to DC500V circuit.
Power
Load
MCCB types pole Voltage Breaking capacity, kA
VBS 53 VBS635
VBE 103
VBH 103
VBS 203 20
VBE 4033 DC500V
VBS 40335
VBE 603 VBE 803
VBL 103 VBL 203
VBL 403 40
VBL 603 VBL 803
MCCB application
70 VITZROTECH MCCB
S H L
S H L
■Coordination of cascade(Back-up) protectionAC 220/240V
Back up MCCB
Cascade BreakingMCCB capacity (kA)
VBE 33 5VBE 52 18VBE 103 25
E VBE 203 35VBE 403 35VBE 603 50VBS 33 18VBS 53 25VBS 63 25
S VBS 103 50VBS 203 50VBS 403 50VBS 603 100VBH 33 25VBH 53 50
H VBH 103 65VBH 203 65VBH 403 85
VBE VBE VBE VBE VBE VBS VBS VBS VBS VBS VBH VBH VBH VBL VBL VBL VBL VBL103 203 403 603 803 103 203 403 603 803 103 203 403 103 203 403 603 803
25 35 35 50 50 50 50 50 100 100 65 65 85 100 125 125 125 125
5 5 5
25 10 14 14 25 25 30 30 30 50
30 30 35 50 50 50 50 50 50
50 50 65 85 85
50 50 85 85
25 10 14 14 25 25 30 30 50
10 30 30 35 35 50 50 50 35 50 50 85
10 30 30 35 35 50 50 50 35 50 50 85
85 85 85 100
85 85 85 100 100 100
85 85 100 100
30 30 35 35 35 50 85
85 85 85
100 100 85 100 100 100 100
100 100 85 100 100 100
100 100 85 125 125 125
E
AC 415/460VBack up
MCCBCascade Breaking
MCCB capacity (kA)VBE 53 10VBE 63 10VBE 103 14
E VBE 203 18VBE 403 25VBE 603 35VBS 33 10VBS 53 14VBS 63 14
S VBS 103 25VBS 203 25VBS 403 35VBS 603 50VBH 33 14VBH 53 25
H VBH 103 35VBH 203 35VBL 103 65
LVBL 203 65VBL 403 65VBL 603 65
VBE VBE VBE VBS VBS VBS VBS VBS VBH VBH VBH VBL VBL VBL VBL VBL203 403 603 103 203 403 603 803 103 203 403 103 203 403 603 803
18 25 35 25 25 35 50 50 35 35 50 65 65 65 65 65
14 18 14 18 25 25 25
14 18 14 18 25 25 25
18 18 25 25 25 35 35 35
35 35 35 50 50
35 50 65
10 14 14 14 18 14 18 18 25 25
25 25 35 35 35 35 50
25 25 35 35 35 42 42 50
45 45 65 65
18 25 35 25 35 42 42
30 35 35 30 35 42 42 42 42
30 35 35 35 42 42 42
65 65 65
65 65 65
65 65
65
E
Installation and connectionChange the Breakers, Change the Quality
Low Voltage Circuit Breakers
■Tightening torque for terminals
■Connections for solderless
Clamping screw M5 23~28
Round head screw M8 55~75
Hexagonal wrench bolt M8 55~75
Hexagonal bolt M12 400~500
VBE 30 VBE 50VBS 30 VBS 50VBH 30
VBE 60 VBE 100VBS 30 VBS 50 VBS 60 VBS 100VBH 50 VBH 100 VBL 100 VBP 100
VBE 200 VBS 200VBH 200 VBL 200
VBE 400 VBS 400 VBH 400 VBL 400VBE 600 VBS 600 VBH 600 VBL 600VBE 800 VBS 800 VBH 800 VBL 800
Screw Tightening torqueMCCBsShape SIze (kg∙cm)
For
solderless
terminal
For
busbar
Direct connection to the terminal of MCCB Connection to a busbar
Connection to extension busbars
← 1st terminal
← 2nd terminal, if necessary
71Installation and connection
Installation and connection
72 VITZROTECH MCCB
■Arc space
Arc spaces are required as below table according to the above conditions.Naked wires and terminals should be properly insulated by taping or insulation barrier as indicated beow.
- 10 - 10 - 10 10 - 5
40 25 40 25 25 15 40 40 10
50 30 50 30 25 15 50 50 -
50 50 50 50 50 20 50 50 -
100 80 100 80 50 40 50 50 -
100 80 100 80 80 20 100 100 -
100 80 100 80 80 40 100 100 -
30 25 30 25 20 15 30 30 5
40 30 40 30 25 15 40 40 10
50 40 50 40 25 15 50 50 10
100 80 100 80 50 40 50 50 10
100 80 100 80 50 40 50 50 10
100 80 100 80 80 40 100 100 10
100 80 100 80 80 40 100 100 10
100 80 100 80 80 40 100 100 10
200 160 200 160 80 40 200 200 10
VBE 33VBE 53, VBE63VBE 103VBS 103VBE 203, VBS 203, VBH 203VBE 403VBE 603, VBE 803VBS 33VBS 53, VBS 63VBH 53VBH 103VBL 103VBL 203VBS403, VBH 403VBS 603, VBS 803VBL 403, VBL 603
C1+
Length of
naked live
-part
Length of
nakedlive
-part+20
Length of
naked live
-part+20
MCCB types
From top Between breakers From naked side plate Taping or Insulation Barrier
A C1
400V 200V 400V 200V
C E
400V 200V
Taping Barrier
SolderlessBusbar
SolderlessBusbarterminal terminal
D1 D2 D3 D4
Nakedwire
length
F
Standard operating conditionsChange the Breakers, Change the Quality
Low Voltage Circuit Breakers
■ Influence of mounting angleHydraulic magnetic type MCCBs are designed to be mounted vertically. If the mounting angle is changed it causes the change of rated current
■Reversed connection of line and load
MCCBs are designed and tested only for the normal connection as shown in Fig. 1.In case of the inverse connection in Fig.2 the specified breaking capacity is not guaranteed.
Line
Load
Line
Load
Vertical Horizontal Horizontal Slope of 15。 Slope of 45。 Slope of 15。 Slope of 45。(upside down)
Mounting
angle
AF
30~100AF 100% 120% 80% 105% 110% 95% 85%
Fig.1 Normal connection Fig.2 Reverse connection
73Standard operating conditions
Standard operating conditions
74 VITZROTECH MCCB
1. Standard operating conditionsStandard operating conditions specified in IEC.1. Operating temperature : -5℃ ~ 40℃2. Relative humidity : 85% or less3. Altitude : 2,000 meters or lower4. Environment : should be free of excessive aqueous vapor, oil, smoke, dust, corrosive gas, inflammable gas
2. Storage and transportation
� Do not leave the device in the area where corrosive gas exists.
� Keep the switch position at off or tripduring storage.
� Do not leave the device in humid environment for an excessive period of time.
Warnings for transportation
� Be careful not to drop the device during transportation.
� Do not carry the device by the lead wire of an accessory. It will give an excessive force to the accessory.
� Do not carry the device upside down if the DIN rail has been attached.
Warnings for mounting
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
3. Mounting and wiring
� Avoid direct contact with rain water. oil or smoke dust. � Do not block the vent hole. It will deteriorates interruption performance. Secure a sufficient insulation distance on the power source side of the breaker.
� Avoid direct sunlight. Erroneous operation may result by increased temperature.
� Do not remove the insulation plate attached at the bottom of the device.
Warnings for wiring
� If a screw is stained with lubricating oil. remove it from the screw before fastening. It may cause overheating on the device, and the excessive tensile force from the fastening torque on the screw may result in a mechanical damage.
� Wire the contactor for each phase so that they are arranged in parallel.
� Avoid reversed connection between the sides of power source andthe load on an MCCB in principle. If it is inevitable. consult the makerbeforehand.
Never make reversed connection on an ELB.
75Standard operating conditions
Warnings for mounting
76 VITZROTECH MCCB
On the connected conductors,a large electromagnetic forcetakes place in response to thefault current. Therefore it is necessary to fixthe conductors securely asshown to the right.
Screw fasteningWhen directly fastening a single wire to the terminal with a screw,fasten it by untwisting the wire.in case of a twisted wire, separate the strands into two similargroups and fasten them around the screw.
ELB connection
When using a 3-phase ELB for a single phase 3-wire circuit, the
neutral line should be connected to phase S. (See Fig. 1)
If you use a 3-phase ELB for a single phase 2-wire circuit, each wire
should be connected to the pole at either side. (Leave the pole in
the center unwired.) (See Fig. 2)
If two ELB's are connected in parallel, the magnetic part may be
damaged when leakage takes place. Never connect an MCCB and
ELB in parallel. (See Fig. 3)
Insulationsupport bar
Estimated current Interval between10 20
symmetry value kA(pf) conductors
10 (0.4) 50 25
18 (0.3) 190 95
25 (0.2) 450 225
35 (0.2) 890 445
42 (0.2) 1280 640
50 (0.2) 1820 910
65 (0.2) 3080 1540
85 (0.2) 5260 2630
100 (0.2) 7300 3650
100 (0.2) 7300 3650
125 (0.2) 11400 5700
Impact electromagnetic force for 1 meter of conductor(Unit:kg)
< Fig. 1 >
< Fig. 2 > < Fig. 3 >
Maintenance and CheckChange the Breakers, Change the Quality
Low Voltage Circuit Breakers
77
After mounting of an MCCB or an ELB, check the following points before power-up.
Interval of Checks
Type Check Points Criteria Remark
1. No conductive material such as a screw, a metallic pieceShall be perfectly removed.
and a fragment of wire on or around the terminal
Common 2. No damage on the cover or the case. No damage allowable.
to MCCB 3. No condensation on the cover or the terminals of the case. No condensation allowable
and ELB 4. Measure the insulation resistance with an insulation tester. Shall be 5㏁㏁ or higherRefer to note2 for an ELB.
5. Secure connection of the conductors.Shall be the specifiedtorque or higher.
6. The rated voltage of and ELB should be same as Shall be the same.
ELB Only the circuit voltage.
7. Verify operation by applying a voltage and pushing the test button. The Elb shall trip.
1. Clean and dry environment Once every 2 to 3 years
2. Environment containing dust, corrosive gas, aqueous vapor, salt, etc. Once a year
3. Locations other than described in 1. and 2. Once every 6 months
Notes1. Withstand Voltage test
�Perform test at the voltage shown in the table to theright or higher.
2. Insulation Resistance Measurement and WithstandVoltage Test(For an ELB)
�Insulation Resistance MeasurementThe insulation resistance at the locations marked with adoes not break down when measured with a 500Vinsulation tester, but it does if 1,000V is applied. Thereading of the tester should be nearly “0”. Measure theresistance with the switch at “off” position. Do not use a1,000V tester.
�Withstand Voltage TestDo not apply any voltage at the locations marked with an ×.
Periodic CheckIn order to prevent a fault and use the breaker for a longtime, it is necessary to check the break once after a monthof installation and periodically afterwards depending onthe environmental conditions.
Main circuit Auxiliary Circuit or Control Circuit
Rated Insulation Test Voltage Rated Insulation Test Voltage
Voltage (RMS of Voltage of (RMS of
AC Portion) Control Circuit AC Portion)
Ui� 300 2000 Ui� 60 1000
300�Ui� 600 2500 60�Uis� 6002Uis+600
(Minimum 1,500)
Test Insulation Resistance Withstand
Point Measurement Voltage Test
Handle Position ON OFF ON OFF
Between the connection○ ○ ○ ○
Part and the ground
Between phases R-S, S-T ○ ○ ○ ○
Between Power source side △ ○ ×
phases R-T Load side △ △ × ×
Between the terminals of the- ○ - ○
power source and the load
Maintenance and Check
Maintenance and Check
78 VITZROTECH MCCB
Life expectancy of the product
For maintenance and checks, checking depending on the environment in which the breaker is installed is necessary. However, thelife span of a breaker is not determined by the number of years i has been operating. It takes diagnosis by an expert and requires thefollowing periods in general.
EnvironmentClean and dry
Some dust but no corrosive gas in indoor air
Sulfurous acid gas, hydrogen sulfide, saltand high humidity but small amount of dustParticularly excessive corrosive gas and dust
Actual examplesDust protected and air conditioned electric roomsPower distribution panels located in electricrooms with no dust protection or air conditioningThermal power plants, waste water treatmentplants, steel mills, paper and pulp millsChemical plants, quarries, mines
Period of replacement (years)10 to 15 approx.
7 to 10 approx.
3 to 7 approx.
1 to 3 approx.
Check pointsHow to check
�Make sure that the terminal screws and wire fixing screws have not unfastened.�Use standard tools.�Check if the surface of an MCCB, especially the side of the
power source, have gathered dust, oil, etc.�In the structure to increase the creepage distance, verify if the
distance has been shortened because of dust and foreign matters.�In a breaker whose contacts remain closed normally, prevent
increase of friction caused by hardening of grease or otherreasons by opening and closing the contacts several times.�Stabilize the contact resistance resulting form sliding
operation of the contacts.�The breaker whose connection conductors have been
excessively discolored requires internal check.�Parts made of copper without corrosion resistance treatment
and brass with no plating.�Silver plates that have turned black.�Measure the insulation resistance between the phases and
the ground with 500V insulation tester.�In case of a conductive material, measure the external area.
How to check�Make sure that the terminal screws and wire fixing
screws have not unfastened.�Use standard tools.�Check if the surface of an MCCB, especially the side of the
power source, have gathered dust, oil, etc.�In the structure to increase the creepage distance, verify if the
distance has been shortened because of dust and foreign matters.�In a breaker whose contacts remain closed normally, prevent
increase of friction caused by hardening of grease or otherreasons by opening and closing the contacts several times.�Stabilize the contact resistance resulting form sliding
operation of the contacts.�The breaker whose connection conductors have been
excessively discolored requires internal check.�Parts made of copper without corrosion resistance treatment
and brass with no plating.�Silver plates that have turned black.�Measure the insulation resistance between the phases and
the ground with 500V insulation tester.�In case of a conductive material, measure the external area.
Countermeasure
�Fasten the screws with the specified torque depending on thematerial and the size of the screw.
�Remove dust with cleaner or a dry cloth.�Neutral detergent. (Corrosive detergent prohibited).
�The breaker which does not open or close smoothly requiresservice by the maker.
�Slight discoloration of silver plating is not a problem.�Take a sample from the same environment and ask the maker
for disassembly and investigation.�Replace the breakers with new ones and investigate the cause.
�Replace the breaker showing less than 5㏁ in principle andinvestigate the cause of deterioration.
�Perform dielectric test on a breaker whose insulation resistance is less than 5㏁.�The breaker with sufficient insulation resistance and dielectric strength is judged to be reusable, however, the user is requested to
observe carefully if there is temperature rise or any other abnormality.�For an ELB, also verify responses to button operations.
Check after trippingLevel of interrupting current
Operation within the operating range of delayed trip
Tripping current of relatively low current value
Large tripping current close to the ratedtripping capacity
Degree of damage to the breaker
No abnormality found except the vent hole
Carbonization phenomenon visible around the vent hole.
Carbonization phenomenon around the venthole, and melted pieces of metal attached
inside the breaker
CountermeasurePossible to trip 50 times at the overcurrent of
6 times of the rated current (100A or less).
Reusable
To be replaced with a new one
↕ ↕ ↕
Level
Standard operating
conditions
WorseEnvironment
Check points
Unfastening of the terminal screws
Dust
Opening and Closing
Discoloration ofthe terminal
Insulationresistance
Change the Breakers, Change the Quality
Low Voltage Circuit Breakers
79
Malfunction diagnosis
�Unfastening of the terminal screws or conductor connection screws
�Increase of the contact resistance of contacts
�Unfastening of the internal terminals
�Increase of current density caused by partial breakdown of a wire
�Bus-bar loosened
�Incomplete contact between the conductive part of the bus-bar and
the breaker terminals
�Foreign matter in the open and close mechanism
�The user did not reset the breaker
�The interrupting mechanism worn outIncorrect interrupting voltage
life span over
�Defective reset mechanism, erroneous adjustment
�Voltage too low to magnetize the coil of the trip mechanism
�Burn-out of fatigue of the spring of the Malfunction at a young age
open and close mechanism Life span over
�The bimetal corroded of deformed
�Life span over due to too many manipulations and operations
�The overcurrent interrupting mechanism not cooled sufficiently
�Contacts melted down due to excessive overcurrent
�Non-conductive matter absorbed between the contacts
�Conductive parts melted down Excessive interrupting current
Life span of short circuit
�Overly worn out contacts tripping current over
�Operating temperature too highWrong selection
No vent hole in the panel
�Temperature rises too high Terminal connection parts loosened
�Internal heating of an MCCB
�Heating in accordance with starting current
�Starting time too long
�Load current exceeds the rated value
(Excessive load on the motor, the motor voltage too high or too low)
�Starting current too high
�Excessive current on accordance with reversible operation
�In-rush current for instantaneous restart
�Charging current for capacitors, overcurrent for incandescent
lamps, starting current for fluorescent lamps
�Layer short circuit of a motor
�Abnormal current at the moment of power-up
�Erroneous connection of the control circuit
�Current is not displayed rapidly, because it is a high frequency current
�The rated current selected too high
�Current limitation by an upper level fuse, lack of coordination with an
upper level breaker
�Dust accumulated
�Conductive matter fallen on the power source side
�Temperature of the terminal too
high - Burn-out of the insulation
material theat terminal
�Temperature on the side
of the housing too high
�Heat generation at the
joints of the bus-bar
main body
�Unable to close
�Unable to re-manipulate
�Unable to trip
�Unable to turn off
�No conduction of
electricity
�Operation under
normal load
�Malfunction during
start-up
� Instantaneous
operation during
start-up
�Non-operation above
the specified operating
current
Temperature Rise
Erroneous Response
to Manipulation
Defection in
Conduction of
Electricity
Frequent Tripping
of an MCCB
Non Operation
short Circuit on the
Power Source Side
�Fasten with the
specified torque
�Replace with a new one
�Fasten up
�Refasten the bus-bar
� Remove the foreign matter
�Do 'reset'
�Replace with a new one
�Dispose of the breaker
�Request for repair service
�Apply right voltage
�Request for repair service
�Dispose of the breaker
�Request for repair service
�Dispose of the breaker
�Cool down and reset
�Replace with the on with
higher interrupting capacity
�Remove the foreign matter
�Request for repair service
�Replace with the on with
higher interrupting capacity
�Dispose of the breaker
�Change the selected ratings
�Ventilate the panel
�Fasten up
�Replace with a new one
�Replace with the on with
higher interrupting capacity
�Change the selected
ratings
�Change the rated
instantaneous
interrupting current or
other ratings
�Repair the motor
�Check the circuit
�Change the selected ratings
�Replace with the one
with smaller ratings
�Review coordination or
change selections
�Replace with a new one
�Replace with a new one
Type of Malfunction Status of Malfunction Cause Countermeasure
Maintenance and Check
Maintenance and Check
80 VITZROTECH MCCB
Malfunction Diagnosis of accessories
Type of Malfunction Status of Malfunction Cause Remedy
�Low voltage Control voltage fallen down or �Improve power source
mistake in voltage selection
Continuous magnetization�Request for repair service, attach auxiliary
�Abnormality of SHT contacts for prevention of burn-out
(Shunt trip mechanism)�Coil burn-out
Continuous magnetization at a �Request for repair service
voltage lower than operating voltage (to improve power source)
Malfunction of For prevention of burn-out �Request for repair service (to replace the coil)
accessories Abnormal voltage applied
�Unable to close UVT�Error in applied frequency or voltage
(Undervoltage trip mechanism)�The magnet does
Voltage drop too high�Improve power source
not attract in
�No tripping operation under �The tripping mechanism of the breaker out of order �Request for repair service
no voltage condition
�Malfunction of AL (alarm switch)�Erroneous assembly �Reassemble the unit
�Malfunction of AX (auxiliary switch)
Malfunction Diagnosis of Leakage Tripping Part
Type of Malfunction Status of Malfunction Cause Remedy
Leakage current flows due to excessive �Adjust the rated detection current
The leakage mechanism trips capacitance caused by lengthy wiring �Relocate the ELB close to the load
simultaneously with power-up Parallel connection of ELB's�Verify the wiring
Malfunction Erroneous connection of the neutral line
Penetration of an excessive surge �Attach a surge absorber on the line
Trips during operation Penetration of an inductive noise from
a high current bus nearby
Abnormal Does not trip when the Incomplete contact of the test button �Send for repair service
Operation test button is pushed
MemoChange the Breakers, Change the Quality
Low Voltage Circuit Breakers
81Memo
Memo
82 VITZROTECH MCCB
MemoChange the Breakers, Change the Quality
Low Voltage Circuit Breakers
83Memo
www.vitzrotech.com
www.vitzrotech.com
2005.06
Seoul office233-3, 1Dong, Sungsu-2Ga, Sungdong-Gu,Seoul, 133-826, KoreaTel: 82-2-4602-000 Fax: 82-2-3436-1900Homepage: www.vitzrotech.comE-mail: [email protected]
Head office & Ansan factory605-2, Sunggok-dong, Ansan City, Kyunggi-Do, 425-833, KoreaTel: 82-31-4892-000 Fax: 82-31-492-2216
WUXI VITZRO ELECTROMECHANICAL CO., LTD74#-D,National Hi-Tech Industrial Development Zone,Wuxi, Jiangsu, China Tel: 86-510-865-8080 Fax: 86-510-865-1919
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