# TIME DELAY RELAY, DPDT, 100H, 240VAC/DC

![Product image](https://novapart.co/image/farnell:1089455/)

**URL**: https://novapart.co/products/DMB71DW24/time-delay-relay-dpdt-100h-240vac-dc
**SKU**: DMB71DW24
**Manufacturer**: CARLO GAVAZZI
**Category**: Automation & Process Control || Panel Displays & Instrumentation || Panel Instrumentation || Analogue Timers - DIN Rail
**Price**: €130.8800
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Time Max | 100h |
| Time Min | 0.1s |
| Timer Output | 2 Changeover Relays |
| Product Range | DMB71 Series |
| Timer Functions | Multifunction |
| Current Rating Nom | 5A |
| Supply Voltage Max | 240V |
| No. Of Timing Ranges | 7Ranges |
| Connection / Termination | Screw Terminals |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:1089455/)

## **Timers Multifunction Types DMB51, DMB71** 

- **Selectable time range 0.1 s to 100 h** 

- **7 knob selectable functions:** 

   - 

   - **Op delay on operate In - interval Io - interval on trigger open Id - double interval Dr - delay on release R - symmetrical recycler ON first Rb - 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** 

**==> picture [151 x 6] intentionally omitted <==**

**----- Start of picture text -----**<br>
DMB51 DMB71<br>**----- End of picture text -----**<br>


- **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** 

## **Product Descri tion p** 

for DPDT version, suitable both for back and front panel mounting. 

Multi-voltage timer with 7 knob-selectable functions and 7 knob-selectable time ranges within 0.1s and 100h. For mounting on DIN-rail. Housing 17.5 mm wide for SPDT version and 35.5 mm 

Wide power supply range: 24 VDC and 24 to 240 VAC or 12 to 240 VAC/DC. 

**Ordering Key DMB 51 C M24 Housing Function Type Item number Output Power supply** 

## **T e Selection yp** 

|**Mounting**|**Output**|**Housing**|**Supply:**|
|---|---|---|---|
||||**12 to 240 VAC/DC**|
|DIN-rail|SPDT|Mini-D|**DMB 51 C W24**|
|DIN-rail|DPDT|Mini-D|**DMB 71 D W24**|



## **Time S ecifications p** 

|**Time ranges**||
|---|---|
|Knob selectable|0.1 to 1 s<br>1<br>to 10 s<br>6<br>to 60 s<br>60 to 600 s<br>0.1 to 1 h<br>1<br>to 10 h<br>10 to 100 h|
|**Setting accuracy**|≤5%|
|**Repeatability**|≤0.2%|
|**Time variation**||
|Within rated power supply|≤0.05%/V|
|Within ambient temperature|≤0.2%/°C|
|**Reset**||
|Manual reset of time and/or|Close the trigger contact|
|relay<br>Pulse duration<br>Power supplyinterruption<br>**Automatic start**|between pins A1 and Y1<br>≥100 ms<br>≥200 ms<br>Connect  pins A1 and Y1|



## **Supply: 24 VDC and 24 to 240 VAC** 

**DMB 51 C M24 DMB 71 D M24** 

## **Out ut S ecifications p p** 

|**Output**||SPDT or DPDT relay|
|---|---|---|
|**Rated insulation voltage**||250 VAC(rms)|
|**Contact Ratings**(AgSnO2)||µ|
|DMB51 (SPDT):|||
|Resistive loads|AC 1|5 A @ 250 VAC|
||DC 12|5 A @ 24 VDC|
|Small inductive loads|AC 15|2.5 A @ 250 VAC|
||DC 13|2.5 A @ 24 VDC|
|DMB71 (DPDT)|||
|Resistive loads|AC 1|5 A @ 250 VAC|
|Small inductive loads|AC 15|3 A @ 250 VAC|
||DC 13|3 A @ 24 VDC|
|**Mechanical life**||≥30 x 106 operations|
|**Electrical life**||≥105 operations|
|||(at 5 A, 250 V, cosϕ= 1)|
|**Operating frequency**||< 7200 operations/h|
|**Dielectric strength**|||
|Dielectric voltage||2 kVAC (rms)|
|Rated impulse withstand|||
|voltage||2.5 kV (1.2/50 µs)|



**1** 

Specifications are subject to change without notice (18.06.07) 

**DMB51, DMB71** 

## **Su l S ecifications pp y p** 

|**Power supply**||Overvoltage cat. II|
|---|---|---|
|Rated operational voltage||(IEC 60664, IEC 60038)|
|through terminals:<br>(DMB51C)<br>A1, A2   M24:<br>W24:<br>(DMB71D)<br>A1, A2   M24:||24 VDC ± 15% and<br>24 to 240 VAC + 10% -15%,<br>45 to 65 Hz<br>12 to 240 VDC + 10% -15%<br>and<br>12 to 240 VAC<br>+ 10% -15%, 45 to 65 Hz<br>24 VDC ± 15%|
|||24 to 240 VAC + 10% -15%,|
|||45 to 65 Hz|
||W24|12 to 240 VDC + 10% -15%|
|||and|
|||12 to 240 VAC +10% -15%,|
|||45 to 65 Hz|
|**Voltage interruption**||≤10 ms|
|**Rated operational power**|||
|(DMB51C)|AC supply:|4 VA|
||DC supply:|1.5 W|
|(DMB71D)|AC supply<br>DC supply|5.5 VA<br>2 W|



## **Time Settin g** 

## **Centre knob:** 

## **Upper knob:** 

Setting of function: 

Time setting on relative scale: 1 to 10 with respect to the chosen range. 

- Op- delay on operate In - interval 

- Io - interval on trigger open Id - double interval Dr - delay on release 

## **Lower knob:** 

Setting of time range 

- R - symmetrical recycler 

(ON first) Rb - symmetrical recycler (OFF first) 

## **General S ecifications p** 

||**Power ON delay**||≤100 ms|
|---|---|---|---|
||**Indication for**|||
||Power supply ON||LED, green|
||Output relays ON||LED, yellow|
||||(flashingwhen timing)|
||**Environment**||(EN 60529)|
||Degree of protection||IP 20|
||Pollution degree||2 (IEC 60664)|
||Operating temperature||-20° to +60°C, R.H. < 95%|
||Storage temperature||-30° to +80°C,R.H. < 95%|
||**Housing**|||
||Dimensions|DMB51C|17.5 x 81 x 67.2 mm|
|||DMB71D|35.5 x 81 x 67.2 mm|
||Material||PA66|
||**Weight**||75g|
||**Screw terminals**|||
||Tightening torque||Max. 0.5 Nm according to|
||||IEC EN 60947|
||**Approvals**||UL, CSA|
||||RINA(DMB 51 only)|
||**CE Marking**||Yes|
||**EMC**||Electromagnetic Compatibillity|
||Immunity<br>Emissions||According to EN 61000-6-2<br>According to EN 61000-6-3|



## **Mode of O eration p** 

## **Function Op Delay on operate** 

The time period begins as soon as the trigger contact is closed. 

At the end of the set delay time the relay operates and does not release until the trigger contact is closed again or the power supply is disconnected. If the trigger contact is closed before the end of the delay time, the device resets and a new time period starts. 

## **Function In Interval** 

The relay operates and the time period begins as soon as the trigger contact is closed. The relay releases at 

is opened before the end of the delay time the relay keeps ON and a new time period begins. 

the end of this period or when the power supply is disconnected. The relay operates again when the trigger contact is closed again. If the trigger contact is closed before the end of the delay time, the device resets and a new time period starts. 

## **Function Id** 

## **Double interval** 

time, the device resets and a The relay operates and the new time period starts. time period begins as soon as the trigger contact is **Function Io** closed. The relay releases at **Interval on trigger open** the end of this period or The relay operates and the when the power supply is time period begins as soon disconnected.  When the as the trigger contact is trigger contact is opened opened. At the end of the the relay operates again for set delay or when the power the set delay period. If the supply is disconnected the trigger contact is opened relay releases. The relay before the end of the first operates again when the time period the second one trigger contact is opened begins; if the trigger contact again. If the trigger contact is closed before the end of 

the second time period the device resets and the first time period begins again. 

## **Function Dr** 

## **Delay on release** 

The relay operates as soon as the trigger contact  is closed. The time period begins when the trigger contact is opened. The relay releases at the end of the set delay time or when the power supply is disconnected. The relay operates again when the input contact is closed again.  If it is opened before the end of the delay time the relay keeps ON, a new time period begins as soon as the contact is closed again. 

**2** 

Specifications are subject to change without notice (18.06.07) 

**DMB51, DMB71** 

## **Mode of Operation (cont.)** 

## **Function R** 

## **Function Rb** 

## **Symmetrical recycler, ONtime period first** 

## **Symmetrical recycler,** 

## **OFF-time period first** 

The relay operates and the The time period begins as time period begins as soon soon as the input contact is as the input contact is closed. The relay is OFF closed. After the set delay during the set delay period, period the relay releases for after this time it operates for the same time period. This the same time period. This sequence continues with sequence continues with equal ON- and OFF-time equal OFF- and ON-time periods until the power supperiods until the power supply is interrupted. ply is interrupted. 

## **Additional Load** 

It's possible to wire an additional load (i.e. a relay) between pins Y1 and A2, driven by the trigger contact without damaging the device. 

## **Yellow LED working** 

## **mode** 

Timing: Slow blinking Relay ON: See operation diagrams Incorrect knobs position: Fast blinking 

## **O eratin Dia rams p g g** 

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Function�Op�-�Delay�on�operate�-�Manual�start<br>Power�supply<br>Trigger�input<br>ON T T<br>Relay�ON<br>OFF<br>LED<br>Function�Op�-�Delay�on�operate�-�Automatic�start<br>Power�supply<br>ON T T<br>Relay�ON<br>OFF<br>LED<br>Function�Io�-�Interval�on�trigger�open<br>Power�supply<br>Trigger�input<br>ON T T<br>Relay�ON<br>OFF<br>LED<br>**----- End of picture text -----**<br>


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Function�In�-�Interval�-�Manual�start<br>Power�supply<br>Trigger�input<br>ON T T<br>Relay�ON<br>OFF<br>LED<br>Function�In�-�Interval�-�Automatic�start<br>Power�supply<br>ON T T<br>Relay�ON<br>OFF<br>LED<br>Function�Id�-�Double�interval<br>Power�supply<br>Trigger�input<br>ON T T<br>Relay�ON<br>OFF<br>LED<br>**----- End of picture text -----**<br>


**3** 

Specifications are subject to change without notice (18.06.07) 

**DMB51, DMB71** 

## **Operating Diagrams (cont.)** 

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Relay ON ON a T a<br>OFF<br>LED<br>**----- End of picture text -----**<br>


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Function R - Symmetrical recycler (ON first)<br>Trigger input | |<br>Relay ON ON rsd T T | T T<br>OFF<br>LED<br>**----- End of picture text -----**<br>


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Relay ON ON —_ T Do T T Co T<br>OFF<br>LED<br>**----- End of picture text -----**<br>


## **Wiring Diagram** 

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L(+)<br>µ µ<br>p O10<br>S A1 16 18 26 28<br>Y1<br>A2 15 25<br>DMB51CM... DMB71DM...<br>DMB51CW... | DMB71DW...<br>DMB71DM...<br>Poe ee N(-)<br>DMB71DW...<br>**----- End of picture text -----**<br>


## **Dimensions** 

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DMB51<br>17.5<br>67.2<br>18.7<br>oe 7 =<br>0<br>a<br>©<br>® |<br>o\ \ q |<br>81<br>45<br>2<br>**----- End of picture text -----**<br>


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DMB71<br>**----- End of picture text -----**<br>


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35.5 67.2<br>co naaea n [7 __| 18.7<br>O_0o_o<br>50= O<br>Oo<br>O,<br>O A 7<br>81 45<br>2<br>**----- End of picture text -----**<br>


**4** 

Specifications are subject to change without notice (18.06.07) 



## Links

- [View this product on Novapart](https://novapart.co/products/DMB71DW24/time-delay-relay-dpdt-100h-240vac-dc)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/en-ES/carlo-gavazzi/dmb71dw24/time-delay-relay-dpdt-100h-240vac/dp/1089455)
---

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