Specifications are subject to change without notice (18.06.07) 1

Product Description Ordering Key

Multifunction

Multi-voltage timer with 7knob-selectable functionsand 7 knob-selectable timeranges within 0.1s and 100h.For mounting on DIN-rail.Housing 17.5 mm wide forSPDT version and 35.5 mm

for DPDT version, suitableboth for back and front panelmounting.Wide power supply range:24 VDC and 24 to 240 VACor 12 to 240 VAC/DC.

Selectable time range 0.1 s to 100 h 7 knob selectable functions:

Op - delay on operateIn - intervalIo - interval on trigger openId - double intervalDr - delay on releaseR - symmetrical recycler ON firstRb - symmetrical recycler OFF first

Automatic or manual start Repeatability: 0.2% Output: 5 A SPDT or 5 A DPDT relays For mounting on DIN-rail in accordance with DIN/EN 50 022 17.5 mm (DMB51C) or 35.5 mm (DMB71D) DIN-rail

housing (DIN 43880) Combined AC and DC power supply LED indication for relay status and power supply ON

Output SPDT or DPDT relayRated insulation voltage 250 VAC (rms)Contact Ratings (AgSnO2)

DMB51 (SPDT):Resistive loads AC 1 5 A @ 250 VAC

DC 12 5 A @ 24 VDCSmall inductive loads AC 15 2.5 A @ 250 VAC

DC 13 2.5 A @ 24 VDCDMB71 (DPDT)Resistive loads AC 1 5 A @ 250 VACSmall inductive loads AC 15 3 A @ 250 VAC

DC 13 3 A @ 24 VDCMechanical life 30 x 106 operationsElectrical life 105 operations

(at 5 A, 250 V, cos = 1)Operating frequency < 7200 operations/hDielectric strength

Dielectric voltage 2 kVAC (rms)Rated impulse withstandvoltage 2.5 kV (1.2/50 s)

Output Specifications

Type Selection

DMB 51 C M24HousingFunctionTypeItem numberOutputPower supply

Time SpecificationsTime ranges

Knob selectable 0.1 to 1 s1 to 10 s6 to 60 s60 to 600 s0.1 to 1 h1 to 10 h10 to 100 h

Setting accuracy 5%Repeatability 0.2%Time variation

Within rated power supply 0.05%/VWithin ambient temperature 0.2%/C

ResetManual reset of time and/or Close the trigger contact relay between pins A1 and Y1 Pulse duration 100 msPower supply interruption 200 ms

Automatic start Connect pins A1 and Y1

Types DMB51, DMB71

Timers

Mounting Output Housing Supply: Supply:12 to 240 VAC/DC 24 VDC and 24 to 240 VAC

DIN-rail SPDT Mini-D DMB 51 C W24 DMB 51 C M24DIN-rail DPDT Mini-D DMB 71 D W24 DMB 71 D M24

DMB51 DMB71

2 Specifications are subject to change without notice (18.06.07)

DMB51, DMB71

Power ON delay 100 msIndication for

Power supply ON LED, greenOutput relays ON LED, yellow

(flashing when timing)Environment (EN 60529)

Degree of protection IP 20Pollution degree 2 (IEC 60664)Operating temperature -20 to +60C, R.H. < 95%Storage temperature -30 to +80C, R.H. < 95%

Housing Dimensions DMB51C 17.5 x 81 x 67.2 mm

DMB71D 35.5 x 81 x 67.2 mmMaterial PA66

Weight 75 gScrew terminals

Tightening torque Max. 0.5 Nm according to IEC EN 60947

Approvals UL, CSARINA (DMB 51 only)

CE Marking YesEMC Electromagnetic Compatibillity

Immunity According to EN 61000-6-2Emissions According to EN 61000-6-3

General SpecificationsPower supply Overvoltage cat. II

Rated operational voltage (IEC 60664, IEC 60038)through terminals:(DMB51C) A1, A2 M24: 24 VDC 15% and

24 to 240 VAC + 10% -15%,45 to 65 Hz

W24: 12 to 240 VDC + 10% -15%and12 to 240 VAC+ 10% -15%, 45 to 65 Hz

(DMB71D) A1, A2 M24: 24 VDC 15% 24 to 240 VAC + 10% -15%,45 to 65 Hz

W24 12 to 240 VDC + 10% -15%and12 to 240 VAC +10% -15%,45 to 65 Hz

Voltage interruption 10 msRated operational power

(DMB51C) AC supply: 4 VADC supply: 1.5 W

(DMB71D) AC supply 5.5 VADC supply 2 W

Supply Specifications

Upper knob:Setting of function:

Op- delay on operateIn - intervalIo - interval on trigger openId - double intervalDr - delay on releaseR - symmetrical recycler(ON first)Rb - symmetrical recycler(OFF first)

Centre knob:Time setting on relative scale:1 to 10 with respect to thechosen range.

Lower knob:Setting of time range

Time Setting

Mode of OperationFunction OpDelay on operateThe time period begins assoon as the trigger contactis closed.At the end of the set delaytime the relay operates anddoes not release until thetrigger contact is closedagain or the power supply isdisconnected. If the triggercontact is closed before theend of the delay time, thedevice resets and a newtime period starts.

Function InIntervalThe relay operates and thetime period begins as soonas the trigger contact isclosed. The relay releases at

the end of this period orwhen the power supply isdisconnected. The relayoperates again when the trig-ger contact is closed again. Ifthe trigger contact is closedbefore the end of the delaytime, the device resets and anew time period starts.

Function IoInterval on trigger openThe relay operates and thetime period begins as soonas the trigger contact isopened. At the end of theset delay or when the powersupply is disconnected therelay releases. The relayoperates again when thetrigger contact is openedagain. If the trigger contact

is opened before the end ofthe delay time the relaykeeps ON and a new timeperiod begins.

Function IdDouble intervalThe relay operates and thetime period begins as soonas the trigger contact isclosed. The relay releases atthe end of this period orwhen the power supply isdisconnected. When thetrigger contact is openedthe relay operates again forthe set delay period. If thetrigger contact is openedbefore the end of the firsttime period the second onebegins; if the trigger contactis closed before the end of

the second time period thedevice resets and the firsttime period begins again.

Function DrDelay on releaseThe relay operates as soonas the trigger contact isclosed. The time periodbegins when the trigger con-tact is opened. The relayreleases at the end of theset delay time or when thepower supply is disconnect-ed. The relay operates againwhen the input contact isclosed again. If it is openedbefore the end of the delaytime the relay keeps ON, anew time period begins assoon as the contact isclosed again.

Specifications are subject to change without notice (18.06.07) 3

DMB51, DMB71

Mode of Operation (cont.)Function RSymmetrical recycler, ON-time period firstThe relay operates and thetime period begins as soonas the input contact isclosed. After the set delayperiod the relay releases forthe same time period. Thissequence continues withequal ON- and OFF-timeperiods until the power sup-ply is interrupted.

Function RbSymmetrical recycler,OFF-time period firstThe time period begins assoon as the input contact isclosed. The relay is OFFduring the set delay period,after this time it operates forthe same time period. Thissequence continues withequal OFF- and ON-timeperiods until the power sup-ply is interrupted.

Additional LoadIt's possible to wire an addi-tional load (i.e. a relay)between pins Y1 and A2,driven by the trigger contactwithout damaging thedevice.

Yellow LED workingmodeTiming: Slow blinkingRelay ON: See operationdiagramsIncorrect knobs position:Fast blinking

Operating Diagrams

Powersupply

RelayON

Triggerinput

T T

LED

FunctionOp-Delayonoperate-Manualstart

Powersupply

RelayONT T

LED

FunctionOp-Delayonoperate-Automaticstart

Powersupply

RelayON

Triggerinput

T T

LED

FunctionIn-Interval-Manualstart

Powersupply

RelayONT

LED

FunctionIn-Interval-Automaticstart

T

ON

OFF

ON

OFF

ON

OFF

ON

OFF

FunctionIo-Intervalontriggeropen

Powersupply

RelayON

Triggerinput

T T

LED

FunctionId-Doubleinterval

Powersupply

RelayON

Triggerinput

T T

LED

ON

OFF

ON

OFF

4 Specifications are subject to change without notice (18.06.07)

DMB51, DMB71

FunctionDr-Delayonrelease

Powersupply

RelayON

Triggerinput

T

LED

Powersupply

RelayONT T T T

LED

Triggerinput

FunctionRb-Symmetricalrecycler(OFFfirst)

Powersupply

RelayONT T T T

LED

Triggerinput

ON

OFF

ON

OFF

ON

OFF

Function R - Symmetrical recycler (ON first)

67.2

18.7

45

17.5

81

2

DimensionsDMB51 DMB71

67.267.2

18.718.7

45

45

35.535.5

81

81

2

Operating Diagrams (cont.)

Wiring Diagram

DMB51CM...DMB51CW...

DMB71DM...

S

Y1

L(+)

18 26 2816A1

A2 15 25

N(-)DMB71DW...

DMB71DM...DMB71DW...