# Analogue Timer, DMB51, Multifunction, 0.1 s, 100 h, 7 Ranges, 1 Changeover Relay

![Product image](https://novapart.co/image/farnell:1838955/)

**URL**: https://novapart.co/products/DMB51CM24/analogue-timer-dmb51-multifunction-01-s-100-h-7
**SKU**: DMB51CM24
**Manufacturer**: CARLO GAVAZZI
**Category**: Automation & Process Control || Panel Displays & Instrumentation || Panel Instrumentation || Analogue Timers - DIN Rail
**Price**: €58.6500
**Stock**: 25+
**Lead Time**: 85 days (indicative)

## Description

Product Range:DMB51 Series; Timer Functions:Multifunction; Time Min:0.1s; Time Max:100h; No. of Timing Ranges:7Ranges; Timer Output:1 Changeover Relay; Supply Voltage Max:240VAC; Current Ra

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (21-Jan-2025) |
| Time Max | 100h |
| Time Min | 0.1s |
| Timer Output | 1 Changeover Relay |
| Product Range | DMB51 |
| Timer Functions | Multifunction |
| Current Rating Nom | 5A |
| Supply Voltage Max | 240VAC |
| No. Of Timing Ranges | 7Ranges |
| Connection / Termination | Screw Terminals |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:1838955/)

## **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**<br>**Housing**<br>**Function**|**DMB 51 C M24**|**DMB 51 C M24**|**DMB 51 C M24**|**DMB 51 C M24**|**DMB 51 C M24**|**DMB 51 C M24**|
|---|---|---|---|---|---|---|
|**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**<br>**Repeatability**<br>**Time variation**<br>Within rated power supply|≤5%<br>≤0.2%<br>≤0.05%/V|
|Within ambient temperature<br>**Reset**<br>Manual reset of time and/or<br>relay|≤0.2%/°C<br>Close the trigger contact<br>between pins A1 and Y1|
|Pulse duration|≥100 ms|
|Power supplyinterruption|≥200 ms|
|**Automatic start**|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|
|Resistive loads|AC 1|5 A @ 250 VAC|
||DC 12|5 A @ 24 VDC|
|Small inductive loads AC 15|Small inductive loads AC 15|2.5 A @ 250 VAC|
||DC 13|2.5 A @ 24 VDC|
|**Mechanical life**||≥30 x 106operations|
|**Electrical life**||≥105operations|
|||(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 (13.10.04) 

**Gross Automation (877) 268-3700 · www.carlogavazzisales.com · sales@grossautomation.com** 

**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 to 240 VDC + 10% -15%|<br>|
|||24 to 240 VAC + 10% -15%,||
|||45 to 65 Hz||
||W24|12 to 240 VDC + 10% -15%||
|||and||
|||12 to 240 VAC +10% -15%,<br>45 to 65 Hz||
|**Voltage interruption**||≤10 ms||
|**Rated operational power**||||
|(DMB51C)|AC supply:|4 VA||
|(DMB71D)|DC supply:<br>AC supply<br>DC supply|1.5 W<br>5.5 VA<br>2 W||



## **Time Settin g** 

**Upper knob: Centre knob:** Setting of function: Time setting on relative scale: Op - delay on operate 1 to 10 with respect to the In - interval chosen range. Io - interval on trigger open **Lower knob:** Id - double interval Setting of time range 

Dr - delay on release 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 dimesions**||
||(DMB51C)|17.5 x 81 x 67.2 mm|
||(DMB71D)|35.5 x 81 x 67.2 mm|
||**Weight**|75g|
||**Screw terminals**||
||Tightening torque|Max. 0.5 Nm according to|
|||IEC EN 60947|
||**Approvals**|UL, CSA (DMB 51 only),|
|||RINA(DMB 51 only)|
||**CE Marking**|Yes|
||**EMC**|Electromagnetic Compatibillity|
||Immunity|According to EN 61000-6-2|
||Emissions|According to EN 50081-1|



## **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 

the end of this period or is opened before the end of when the power supply is the delay time the relay disconnected. The relay keeps ON and a new time operates again when the trigperiod begins. ger contact is closed again. If the trigger contact is closed **Function Id** before the end of the delay **Double interval** time, the device resets and a The relay operates and the new time period starts. time period begins as soon 

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 (13.10.04) 

**Gross Automation (877) 268-3700 · www.carlogavazzisales.com · sales@grossautomation.com** 

**DMB51, DMB71** 

## **Mode of Operation (cont.)** ~~eeA~~ **Function R Function Rb Additional Load Yellow LED working Symmetrical recycler, ONSymmetrical recycler,** It's possible to wire an addi- **mode time period first OFF-time period first** tional load (i.e. a relay) Timing: Slow blinking 

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. 

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

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

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

## **Wiring Diagram** 

**==> picture [195 x 108] intentionally omitted <==**

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


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

**==> picture [429 x 217] intentionally omitted <==**

**----- Start of picture text -----**<br>
Function Op - Delay on operate - Manual start Function In - Interval - Manual start<br>Power supply Power supply<br>bE, |lL| lUlc atl<br>Trigger input Trigger input<br>es ee 0 0 rs ie |<br>ON  T T ON  T T<br>Relay ON Relay ON<br>OFF OFF<br>LED LED<br>ssIN |)<br>Function Op - Delay on operate - Automatic start Function In - Interval - Automatic start<br>Power supply Power supply<br> i—e—eeeee lhe, llc lel<br>ON  T T ON  T T<br>Relay ON Relay ON<br>OFF OFF<br>LED LED<br>IS ~—1NNNNIsg | |<br>**----- End of picture text -----**<br>


**3** 

Specifications are subject to change without notice (13.10.04) 

**Gross Automation (877) 268-3700 · www.carlogavazzisales.com · sales@grossautomation.com** 

**DMB51, DMB71** 

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

**==> picture [244 x 249] intentionally omitted <==**

**----- Start of picture text -----**<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>Function Dr - Delay on release<br>Power supply<br>Trigger input<br>ON  T<br>Relay ON<br>OFF<br>LED<br>**----- End of picture text -----**<br>


**==> picture [245 x 249] intentionally omitted <==**

**----- Start of picture text -----**<br>
Function Id - Double interval<br>Power supply<br>Trigger input<br>ON  T T<br>Relay ON<br>OFF<br>LED<br>Function R - Symmetrical recycler (ON first)<br>Power supply<br>Trigger input<br>ON  T T T T<br>Relay ON<br>OFF<br>LED<br>**----- End of picture text -----**<br>


**==> picture [244 x 118] intentionally omitted <==**

**----- Start of picture text -----**<br>
Function Rb - Symmetrical recycler (OFF first)<br>Power supply<br>Trigger input<br>ON  T T T T<br>Relay ON<br>OFF<br>LED<br>**----- End of picture text -----**<br>


## **Dimensions** 

**==> picture [245 x 173] intentionally omitted <==**

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DMB51<br>17.5<br>67.2<br>18.7<br>81<br>45<br>2<br>**----- End of picture text -----**<br>


**==> picture [245 x 173] intentionally omitted <==**

**----- Start of picture text -----**<br>
DMB71<br>35.5 67.2<br>18.7<br>2<br>81 45<br>**----- End of picture text -----**<br>


**4** 

Specifications are subject to change without notice (13.10.04) 

**Gross Automation (877) 268-3700 · www.carlogavazzisales.com · sales@grossautomation.com** 



## Links

- [View this product on Novapart](https://novapart.co/products/DMB51CM24/analogue-timer-dmb51-multifunction-01-s-100-h-7)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/carlo-gavazzi/dmb51cm24/relay-100h-spdt-240vac-din/dp/1838955)
---

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