# Power Relay, SPDT, 24 VDC, 3 A, REL-MR Series, Through Hole

![Product image](https://novapart.co/image/farnell:3256198/)

**URL**: https://novapart.co/products/2909642/power-relay-spdt-24-vdc-3-a-rel-mr-series-through
**SKU**: 2909642
**Manufacturer**: PHOENIX CONTACT
**Category**: Switches & Relays || Relays || Power Relays
**Price**: €7.6000
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Coil Type | - |
| Coil Voltage | 24VDC |
| Product Range | REL-MR Series |
| Relay Mounting | Through Hole |
| Coil Resistance | 3.39kohm |
| Contact Current | 3A |
| Relay Terminals | Solder |
| Contact Material | Silver Tin Oxide |
| Contact Voltage Vac | 250V |
| Contact Voltage Vdc | 250V |
| Contact Configuration | SPDT |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3256198/)

https://www.phoenixcontact.com/us/products/2909642 

## Single relay - REL-MR- 24DC/21/MS - 2909642 

Please be informed that the data shown in this PDF Document is generated from our Online Catalog. Please find the complete data in the user's documentation. Our General Terms of Use for Downloads are valid (http://phoenixcontact.com/download) 

~~=~~ Plug-in miniature power relay, with power contact, 1 changeover contact, manual operation, 24 V DC input voltage 

Key Commercial Data 

~~a~~ Packing unit 1 GTIN 4°055626°377674 ~~Pe LL a~~ GTIN 4055626377674 ~~a~~ Custom tariff number 85364190 

## Technical data 

## Dimensions 

|Width|5 mm|
|---|---|
|Height|28 mm|
|Depth|16 mm|
|Ambient conditions||
|Ambient temperature (operation)|-40 °C ... 85 °C|
|Ambient temperature (storage/transport)|-40 °C ... 85 °C|
|Coil side||
|Nominal input voltage UN|24 V DC|
|Input voltage range in reference to UN|see diagram|
|Typical input current at UN|7 mA|
|Typical response time|5 ms|
|Typical release time|2.5 ms|



Ambient conditions 

## Coil side 

07/18/2017   Page 1 / 9 

https://www.phoenixcontact.com/us/products/2909642 

## Single relay - REL-MR- 24DC/21/MS - 2909642 

## Technical data 

## Coil side 

|Coil resistance|3390 Ω ±10 % (at 20 °C)|
|---|---|
|Power dissipation for nominal condition|0.17 W|
|Contact side||
|Contact type|1 PDT|
|Type of switch contact|Single contact|
|Contact material|AgSnO|
|Maximum switching voltage|250 V AC/DC|
|Minimum switching voltage|5 V (at 100 mA)|
|Min. switching current|10 mA (at 12 V)|
|Maximum inrush current|10 A (4 s)|
|Limiting continuous current|6 A|
|Interrupting rating (ohmic load) max.|140 W (at 24 V DC)|
||20 W (at 48 V DC)|
||18 W (at 60 V DC)|
||23 W (at 110 V DC)|
||40 W (at 220 V DC)|
||1500 VA (for 250 V AC)|
|Switching capacity in acc. with DIN VDE 0660/IEC 60947|2 A (at 24 V, DC13)|
||0.2 A (at 110 V, DC13)|
||0.1 A (at 220 V, DC13)|
||3 A (at 24 V, AC15)|
||3 A (at 120 V, AC15)|



3 A (at 230 V, AC15) 

General Test voltage relay winding/relay contact 4 kV AC (50 Hz, 1 min.) Operating mode 100% operating factor Degree of protection RT II (flux-proof) Mechanical service life 1 x 107 cycles Mounting position any Assembly instructions In rows with zero spacing ~~—~~ Standards and Regulations Standards/regulations IEC 60664 EN 50178 EN 61810-1 Degree of pollution 3 Overvoltage category III ~~SSS~~ 07/18/2017   Page 2 / 9 

https://www.phoenixcontact.com/us/products/2909642 

## Single relay - REL-MR- 24DC/21/MS - 2909642 

## Technical data 

## Environmental Product Compliance 

|China RoHS|Environmentally Friendly Use Period = 50|
|---|---|
||For details about hazardous substances go to tab “Downloads”, Category<br>“Manufacturer's declaration”|



## Drawings 

**==> picture [35 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
Diagram<br>**----- End of picture text -----**<br>


## Drilling diagram 

**==> picture [212 x 101] intentionally omitted <==**

**----- Start of picture text -----**<br>
A 1 A 1,3 1,9<br>TTT ET<br>SCHEELEHA HH<br>Preity tt te ett ry<br>a = pitch division 1.25 mm and 1.27 mm<br>1,2<br>**----- End of picture text -----**<br>


Interrupting rating 

**==> picture [417 x 156] intentionally omitted <==**

**----- Start of picture text -----**<br>
Diagram Circuit diagram<br>U<br>UN 3<br>ANT) 2,5 Rane :<br>A<br>2 TPNHBnse son ene ee<br> 4 |<br>1,5 TTT !<br>A2 A1 12 11 14<br>1 TCT TINT OO<br>B<br>TUTTE<br>0,5 MeeeTT TI |<br>0 10 20 30 40 50 60 70 80 90 100<br>TU [°C]<br>**----- End of picture text -----**<br>


## Classifications 

## eCl@ss 

|eCl@ss 5.0|eCl@ss 5.0|27371601|
|---|---|---|
|eCl@ss 5.1|eCl@ss 5.1|27371601|
|eCl@ss 6.0|eCl@ss 6.0|27371601|
|eCl@ss 7.0|eCl@ss 7.0|27371601|
|eCl@ss 8.0|eCl@ss 8.0|27371601|



07/18/2017   Page 3 / 9 

https://www.phoenixcontact.com/us/products/2909642 

## Single relay - REL-MR- 24DC/21/MS - 2909642 

## Classifications 

## eCl@ss 

|eCl@ss 9.0|27371601|
|---|---|
|ETIM||
|ETIM 2.0|EC001437|
|ETIM 3.0|EC001437|
|ETIM 4.0|EC001437|
|ETIM 5.0|EC001437|
|ETIM 6.0|EC001437|



## UNSPSC 

|UNSPSC 6.01|UNSPSC 6.01|30211916|
|---|---|---|
|UNSPSC 7.0901|UNSPSC 7.0901|39121515|
|UNSPSC 11|UNSPSC 11|39121515|
|UNSPSC 12.01|UNSPSC 12.01|39121515|
|UNSPSC 13.2|UNSPSC 13.2|39122334|



## Approvals 

## Approvals 

## Approvals 

UL Recognized / cUL Recognized / cULus Recognized 

Ex Approvals 

Approval details 

> UL Recognized  http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 228652 ~~oo~~ 

> cUL Recognized  http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 228652 ~~ee~~ 

07/18/2017   Page 4 / 9 

https://www.phoenixcontact.com/us/products/2909642 

## Single relay - REL-MR- 24DC/21/MS - 2909642 

Approvals 

> cULus Recognized  http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm ~~es~~ Accessories Additional products 

Relay socket - PLC-BPT- 24DC/21 - 2900445 

6.2 mm PLC basic terminal block with push-in connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, 1 PDT, input voltage 24 V DC 

Relay socket - PLC-BSP- 24DC/21 - 2967219 

6.2 mm PLC basic terminal block with spring-cage connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, 1 PDT, input voltage 24 V DC ~~eo~~ Relay socket - PLC-BSC- 24DC/21 - 2966016 6.2 mm PLC basic terminal block with screw connection, without relays or solid-state relay, for mounting on DIN rail NS 35/7,5, 1 PDT, input voltage 24 V DC ~~eo~~ Relay socket - PLC-BPT- 24UC/21 - 2900446 6.2 mm PLC basic terminal block with push-in connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, 1 PDT, input voltage 24 V AC/DC 

07/18/2017   Page 5 / 9 

https://www.phoenixcontact.com/us/products/2909642 

## Single relay - REL-MR- 24DC/21/MS - 2909642 

## Accessories 

Relay socket - PLC-BSP- 24UC/21 - 2967222 

6.2 mm PLC basic terminal block with spring-cage connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, 1 PDT, input voltage 24 V AC/DC ~~So~~ Relay socket - PLC-BSC- 24UC/21 - 2966029 6.2 mm PLC basic terminal block with screw connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, 1 PDT, input voltage 24 V AC/DC ~~So~~ 

Basic terminal block - PLC-BSC- 36DC/21 - 2966964 Basic terminal block 

Relay socket - PLC-BPT- 48DC/21 - 2900447 

6.2 mm PLC basic terminal block with push-in connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, 1 PDT, input voltage 48 V DC Relay socket - PLC-BSP- 48DC/21 - 2967329 6.2 mm PLC basic terminal block with spring-cage connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, 1 PDT, input voltage 48 V DC ~~eo~~ 07/18/2017   Page 6 / 9 

https://www.phoenixcontact.com/us/products/2909642 

## Single relay - REL-MR- 24DC/21/MS - 2909642 

## Accessories 

Relay socket - PLC-BSC- 48DC/21 - 2966090 

6.2 mm PLC basic terminal block with screw connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, 1 PDT, input voltage 48 V DC ~~eo~~ Relay socket - PLC-BPT- 24DC/ 1/SEN - 2900262 

6.2 mm PLC basic terminal block for input functions with push-in connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with sensor supply voltage distribution (BB), 1 N/O contact, input voltage 24 V DC 

Relay socket - PLC-BSP- 24DC/ 1/SEN - 2967206 

6.2 mm PLC basic terminal block for input functions with spring-cage connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with sensor supply voltage distribution (BB), 1 N/O contact, input voltage 24 V DC ~~eo~~ Relay socket - PLC-BSC- 24DC/ 1/SEN - 2966061 6.2 mm PLC basic terminal block for input functions with screw connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with sensor supply voltage distribution (BB), 1 N/O contact, input voltage 24 V DC ~~eo~~ Relay socket - PLC-BPT- 24UC/ 1/ACT - 2900450 6.2 mm PLC basic terminal block for output functions with push-in connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with load return line connection (BB), 1 N/O contact, input voltage 24 V AC/DC 

07/18/2017   Page 7 / 9 

https://www.phoenixcontact.com/us/products/2909642 

## Single relay - REL-MR- 24DC/21/MS - 2909642 

## Accessories 

Relay socket - PLC-BSP- 24UC/ 1/ACT - 2982809 

6.2 mm PLC basic terminal block for output functions with spring-cage connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with load return line connection (BB), 1 N/O contact, input voltage 24 V AC/DC - Relay socket - PLC-BSC- 24UC/ 1/ACT - 2982799 6.2 mm PLC basic terminal block for output functions with screw connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with load return line connection (BB), 1 N/O contact, input voltage 24 V AC/DC - Relay socket - PLC-BSC- 24DC/21/SO46 - 2980458 6.2 mm PLC basic terminal block with protection against interference currents and interference voltages on the control side, with screw connection, without relay or solid-state relay, for mounting on NS 35/7,5 DIN rail, with increased input current consumption, 1 PDT, 24 V DC input voltage ~~eo~~ Relay socket - RIF-0-BPT/21 - 2900958 RIF-0... relay base, for miniature power relay with 1 PDT or solid-state relays of the same design, push-in connection, for mounting on NS 35/7,5 ~~SO~~ Relay socket - RIF-0-BSC/21 - 2900957 RIF-0... relay base, for miniature power relay with 1 changeover contact or identical solid-state relays, screw connection, for mounting on NS 35/7,5 ~~a~~ 07/18/2017   Page 8 / 9 

https://www.phoenixcontact.com/us/products/2909642 

Phoenix Contact 2017 © - all rights reserved http://www.phoenixcontact.com 

07/18/2017   Page 9 / 9 



## Links

- [View this product on Novapart](https://novapart.co/products/2909642/power-relay-spdt-24-vdc-3-a-rel-mr-series-through)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/phoenix-contact/rel-mr-24dc-21-ms/power-relay-spdt-3a-250a/dp/3256198)
---

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