8/3/2019 Timers 7PU60

1/2

I

The Siemens 7PU60 20 Timersprovide adjustable star timei.e.[(2-20/6-60 sec)/(20-200 sec)]and fixed Star to Delta transfertime (i.e. 50 ms)

Technical Data

Rated insulationVoltage : 500V AC

Setting time ranges

Type Setting time range7PU60-20-3N.. 2-20/6-60 secs.

(can be selectedwith selectorswitches)

7PU60 20-4N.. 20-200 secs(Selector Switch isnot functional)

Operating temperature:-25C to + 55C

Rated operatingCurrent : Ie AC 15 at 220V=3A

at 440V=1AIe DC 13 at 220V=0.1A

Operating Voltage range :

Not Applicable for 7PU6020 3NW20.8 to 1.1 x Us(Us = Rated Voltage)

Setting accuracy: 25% in sectorscale

Recovery time: 150 msRepeat accuracy: 0.5%

Selection

Timers type 7PU60 203N..areprovided with 2 time setting

ranges. Selection of range is donewith Selector Switch, Provided onthe front plate of timer. Timer type7PU60 204N.. has one settingrange (Selector switch is notfunctional)

AC Voltage Voltage Code110V J2

220/240V N2380/440V T2220/400V W2

Installation

Snapped on standard DIN

mounting rail (35 mm) to EN50022

orFixed by two M 3.5 screws on aplain surface. Plain washers and

Electronic Star Delta TimerType: 7PU60 20

Operating Instructions

spring washers must be used.

For mounting dimension refer fig-1

Can be mounted in any position.

Allowable conductor

Cross Section.

Solid 2 x 2.5 mm2

Stranded with end sleeves:

2 x 1.5 mm2

Terminal screws: M3.5

Tightining Torgue: 80 to 120 NCm

Terminal diagram:

See front plate of the timer

Functional diagram:

Ref. Fig: 2

1) Apply rated voltage to terminalsA1/A2

2) Y contact (17/18) closes

instantanously and remainsclosed for set time ty which is

adjustable between 2-20/6-60/20-200 sec.

3) D contact (27/28) closes afterset time (ty) + dead time (td)(i.e. Star to Delta transfertime + 50 ms)

Fig. - 1

15

23.5

2112

DIN Rail mounting feature

88

95

M3.5 Fixing screws (2X)

Fig. - 2

8/3/2019 Timers 7PU60

2/2

Connection Diagram:

Control Circuit Wiring DiagramRefer Fig 3

1/N/PE ~ 50Hz Supply

S0 = Push Button OFF (1NC)

S1 = Push Button ON (1NO)

K1 = Line Contactor with 2NO

Auxiliary Contacts.

K2 = Star Contactor with 1NO + 1NCAuxiliary Contacts.

K3 = Delta Contactor with 1 NCAuxiliary Contacts.

K4 = Star Delta Timer with 1NOinstantaneous and 1NO delayed

Auxiliary Contacts.F1 = Overload Relay.

F0 = Backup Fuse.

Main Circuit Wiring DiagramRefer Fig 4

3 ~ 50Hz V

K1 = Line Contactor

K2 = Star Contactor

K3 = Delta Contactor

F1 = Overload Relay

F0 = Backup Fuse

Siemens Ltd.SGR-01-111-006This replaces SGR-01-111-005

Product development is a continuous process. Consequently

the data indicated in this leaflet is subject to change withoutprior notice. For latest issue contact our sales offices.

Instruction No. 4I00880115786 203

Standard Products Division

Control Systems & ProductsThane Belapur Road,

Thane - 400 601

Tel. : (022) 760 0001

Fax : (022) 760 0076