# Analogue Timer, DCB51 Series, Asymmetrical Recycling, 0.1 s, 100 h, 7 Ranges, 1 Changeover Relay
**URL**: https://novapart.co/products/DCB51CM24/analogue-timer-dcb51-series-asymmetrical-recycling
**SKU**: DCB51CM24
**Manufacturer**: CARLO GAVAZZI
**Category**: Automation & Process Control || Panel Displays & Instrumentation || Panel Instrumentation || Analogue Timers - DIN Rail
**Price**: €85.8300
**Stock**: 10+
**Lead Time**: 85 days (indicative)
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (21-Jan-2025) |
| Time Max | 100h |
| Time Min | 0.1s |
| Timer Output | 1 Changeover Relay |
| Product Range | DCB51 Series |
| Timer Functions | Asymmetrical Recycling |
| Current Rating Nom | 5A |
| Supply Voltage Max | 240VAC |
| No. Of Timing Ranges | 7Ranges |
| Connection / Termination | Plug-In |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:4296351/)
## **Timers Asymmetrical Recycler Type DCB51**
- **Time range 0.1 s to 100h**
- **2 selectable functions Aa - Asymmetrical recycler ON first Ab - Asymmetrical recycler OFF first**
- **Selection of time range by front knobs**
- **Knob adjustable time setting**
- **Automatic start**
- **Output: 1 x SPDT relay**
- **For mounting on DIN rail in accordance with DIN/EN 50 022**
- **17.5 mm DIN-rail housing**
- **Combined AC and DC power supply voltage**
**• LED indication for relay status and power supply ON Product Description Ordering key DCB 51 C M24** Combined function timer with Individual selection of the time **Housing** asymmetrical recycler ON or ranges from 0.1 s to 100 h. **Function** OFF first selectable by conFor mounting on DIN-rail. **Type** nection between pins A1 and **Item number** Y1. **Output Power Supply T e Selection yp** ~~ss~~ **Mounting Output Housing Supply: 24 VDC and 24 to 240 VAC** For DIN-rail 1 x SPDT Mini-D **DCB 51 C M24 Time S ecifications Out ut S ecifications p p p Time ranges Output** 1 x SPDT relay Knob selectable 0.1 to 1 s **Rated insulation voltage** 250 VAC (RMS) 1 to 10 s 6 to 60 s **Contact Ratings** (AgSnO2) µ Resistive Loads AC 1 5 A @ 250 VAC 60 to 600 s DC 12 5 A @ 24 VDC 0.1 to 1 h Small inductive loads AC 15 2.5 A @ 250 VAC 1 to 10 h DC 13 2.5 A @ 24 VDC 10 to 100 h **Setting accuracy** ≤ 5% **Mechanical life** ≥ 30 x 10[6] operations **Repeatability** ≤ 0.2% **Electrical life** ≥ 10[5] operations (at 5 A, 250 V, cos ϕ = 1) **Time variation** (with respect to full scale value) **Operating frequency** < 7200 operations/h Within rated power supply ≤ 0.2% - whole range **Dielectric strength** Within ambient temperature ≤ 500 ppm/°C Dielectric voltage 2 kVAC (RMS) **Reset** Rated impulse Power supply interruption ≥ 200 ms withstand voltage 2.5 kV (1.2/50 µs) **Su l S ecifications pp y p Power Supply** Overvoltage cat. II Rated operational voltage (IEC 60664, IEC 60038) trough terminals A1, A2: 24 VDC +10% -15% and 24 to 240 VAC +10% -15% 45 to 65 Hz **Voltage interruption** ≤ 10 ms **Rated operational power** 1.5 W ~~i~~ Specifications are subject to change without notice (19.06.07) **1**
**DCB51**
## **General S ecifications p**
|**Power ON delay**|≤150 ms|
|---|---|
|**Power OFF delay**
**Indication for**|≤200 ms|
|Power supply ON|LED, green|
|Output relays ON|LED, yellow|
|**Environment**
Degree of protection|(EN 60529)
IP 20|
|Pollution degree|2 (IEC 60664)|
|Operating temperature
Storage temperature|-20 to +60 °C, R:H: < 95%
-30 to +80 °C, R:H: < 95%|
## **Mode of O eration p**
## **Function Aa - AsymmetriFunction Ab - Asymmetrical Recycler ON-time perical Recycler OFF-time od first period first**
The OFF-time period (T1) begins as soon as the power supply is connected. After the OFF-time period the relay operates for the ON-time period (T2). This sequence continues until the power supply is interrupted for at least 200 ms.
The relay operates and the ON-time period (T1) begins as soon as the power supply is connected. After the ON-time period the relay releases for the OFF-time period (T2). This sequence continues until the power supply is interrupted for at least 200 ms.
|**Housing**||
|---|---|
|Dimensions|17.5 x 81 x 67.2 mm|
|Material|PA66|
|**Weight**|Approx 100g|
|**Screw terminals**||
|Tightening torque|Max. 0.5 Nm according to|
||IEC EN 60947|
|**Approval**|UL,CSA|
|**CE Marking**|Yes|
|**EMC**|Electromagnectic Compatibility|
|Immunity|According to EN 61000-6-2|
|Emission|According to EN 61000-6-3|
## **Function/Range/Time Setting**
## **Setting of function:**
**Upper knob: T1 time range setting** Setting of T1 time range.
No connection between terminals A1 and Y1: Setting of T1 time range. Aa - asymmetrical recy- **Centre top knob:** cler (ON first) Time T1 setting on relative Connection between terscale: 1 to 10 with respect minals A1 and Y1: to the chosen range. Ab - asymmetrical recy- **Centre bottom knob:** cler (OFF first) Setting of T2 time range.
## **Lower knob:**
Time T2 setting on relative scale: 1 to 10 with respect to the chosen range.
## **O eration Dia rams p g**
**Function Aa - Asymmetrical Recycler - ON first**
**==> picture [232 x 61] intentionally omitted <==**
**----- Start of picture text -----**
Power supply
Relay ON ON
OFF
LED
**----- End of picture text -----**
## **Wiring Diagram**
**==> picture [244 x 162] intentionally omitted <==**
**----- Start of picture text -----**
ON/OFF first
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**Function Ab - Asymmetrical Recycler - OFF first**
||Power supply|Power supply|||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||||||||||||||||||||||||||||||||||||||||||||||||
||Relay ON|ON|||||||||||||||||||||||||||||||||||||||||||||||||
||LED|OFF|||||||||||||||||||||||||||||||||||||||||||||||||
## **Dimensions**
**==> picture [245 x 162] intentionally omitted <==**
**----- Start of picture text -----**
17.5
67.2
18.7
81
45
2
**----- End of picture text -----**
**2**
Specifications are subject to change without notice (19.06.07)
## Links
- [View this product on Novapart](https://novapart.co/products/DCB51CM24/analogue-timer-dcb51-series-asymmetrical-recycling)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/carlo-gavazzi/dcb51cm24/timer-spdt-0-1s-to-100h-240vac/dp/4296351)
---
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