2908822

Power Relay, SPDT, 24 VDC, 6 A, REL-MR Series, Through Hole

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: PHOENIX CONTACT
Product type: Power Relays
SVHC: No SVHC (04-Feb-2026)
Coil Type: -
Coil Voltage: 24VDC
Product Range: REL-MR Series
Relay Mounting: Through Hole
Coil Resistance: 1.44kohm
Contact Current: 6A
Relay Terminals: Solder
Contact Material: Silver Nickel
Contact Voltage VAC: 250V
Contact Voltage VDC: 250V
Contact Configuration: SPDT

Delivery and price
Units per pack	10
Price	9.48 €
Current stock	10+
Lead time	30 days

Datasheet

https://www.phoenixcontact.com/us/products/2908822 

## Single relay - REL-MR-24DC/21HC/EX - 2908822 

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 for high continuous currents, 1 changeover contact, 24 V DC input voltage for use in Zone 2 applications 

## Why buy this product 

Switching current of up to 16 A RT III-proof (wash-proof) 

## Key Commercial Data 

|Packing unit|1 STK|1 STK|1 STK|1 STK|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|Minimum order quantity|10 STK|10 STK|||||||||||
||||||||||||||
|GTIN|||||||||||||
||||||||||||||
|GTIN|4055626345161||||||||||||
|Weight per Piece (excluding packing)|16.000 g||||16.000 g||||||||
|Custom tariff number|85364190||||||||||||
|Country of origin|Austria||||||||||||



## Technical data 

## Dimensions 

|Width|12.7 mm|
|---|---|
|Height|29 mm|
|Depth|15.7 mm|
|Ambient conditions||
|Ambient temperature (operation)|-40 °C ... 85 °C|
|Ambient temperature (storage/transport)|-40 °C ... 85 °C|



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https://www.phoenixcontact.com/us/products/2908822 

## Single relay - REL-MR-24DC/21HC/EX - 2908822 

## Technical data 

## Coil side 

Nominal input voltage UN 24 V DC Typical input current at UN 17 mA Typical response time 7 ms Typical release time 3 ms Coil resistance 1440 Ω ±10 % (at 20 °C) Power dissipation for nominal condition 0.41 W Contact side Contact type 1 PDT Type of switch contact Single contact Contact material AgNi Maximum switching voltage 250 V AC/DC Minimum switching voltage 12 V (at 10 mA) Min. switching current 10 mA (at 12 V) Maximum inrush current 50 A (20 ms) Limiting continuous current 16 A Interrupting rating (ohmic load) max. 384 W (at 24 V DC) 58 W (at 48 V DC) 48 W (at 60 V DC) 50 W (at 110 V DC) 80 W (at 220 V DC) 4000 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) 0.2 A (at 250 V, DC13) 6 A (at 24 V, AC15) 6 A (at 120 V, AC15) 6 A (at 250 V, AC15) General Test voltage relay winding/relay contact 5 kV AC (50 Hz, 1 min.) Operating mode 100% operating factor Degree of protection RT III (wash-proof) Mechanical service life 3 x 107 cycles Mounting position any Assembly instructions Can be aligned without spacing (> 70 °C ≥ 2.5 mm) Standards and Regulations ~~[=]~~ Standards/regulations IEC 60664 ~~_-_~~ 08/21/2017   Page 2 / 8 

https://www.phoenixcontact.com/us/products/2908822 

## Single relay - REL-MR-24DC/21HC/EX - 2908822 

## Technical data 

## Standards and Regulations 

||EN 50178|
|---|---|
||EN 61810-1|
|Degree of pollution|3|
|Overvoltage category|III|



## 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 

Basic pitch 2.5 mm 

## Drilling diagram 

**==> picture [135 x 7] intentionally omitted <==**

**----- Start of picture text -----**<br>
1,3 5 5 1,28<br>**----- End of picture text -----**<br>


**==> picture [176 x 155] intentionally omitted <==**

**----- Start of picture text -----**<br>
Diagram<br>2,8<br>2,6<br>2,4 | | fT f fT fT tT ft ft ff<br>2,2<br>2 2 LiCEE | {| | | {| | |EE| | |<br>3 1,8 APPS ere 1<br>eg> 1,6 ||} ff.<br>=BR 1,4 Est 2<br>1,2 | NS<br>& 0,81 {fiEefora 2 SE e  ESEttt<br>0,6 ee ee ee 1 [|<br>0 10 20 30 40 50 60 70 80 90 100<br>Ambient temperature [°C] ——— »<br>1 DC coils<br>2 AC coils<br>N<br>**----- End of picture text -----**<br>


Operating voltage range 

Diagram 

Diagram 

**==> picture [439 x 136] intentionally omitted <==**

**----- Start of picture text -----**<br>
107<br>20<br>— 106 ——————_———————S——pf Nt tft | 1 =FA[INE | tt ft tt PP tt<br>SS 4 106 SNS<br>2<br>i =aee5.——see=enea=<br>3 2 1<br>=== es< 0,51 TTee ———— 2 105 JFRESE 2 SS SSeba aee<br>Ee ON 0,30,2 esSee ========>=========a| ee<br>0,110 a 20 30 50 70 100 200 300 1040 EEEECELEELELLELEL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16<br>Switching voltage [V] ——— > Switching current [A] ——- ><br>1 AC, ohmic load<br>2 DC, ohmic load 1 250 V AC, ohmic load (DC coils)<br>3 DC, L/R = 40 ms 2 250 V AC, ohmic load (AC coils)<br>Cycles<br>**----- End of picture text -----**<br>


Electrical service life 

Interrupting rating 

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https://www.phoenixcontact.com/us/products/2908822 

## Single relay - REL-MR-24DC/21HC/EX - 2908822 

## Diagram 

## Dimensional drawing 

**==> picture [438 x 112] intentionally omitted <==**

**----- Start of picture text -----**<br>
29 12,7<br>1 _ ee 7<br>0,9 ee<br>0,8 | Pay ff<br>0,7<br>0,6<br>0,50,4 | | | | | | JN<br>0,3 1 | 0,9 | 0,8 | 0,7 | 0,6 | 0,5 | 0,4 JT J 0,3 SN 0,2<br>COS<br>15,7<br>3,6<br>**----- End of picture text -----**<br>


Service life reduction factor with various cos phi 

## Circuit diagram 

**==> picture [115 x 46] intentionally omitted <==**

**----- Start of picture text -----**<br>
A1<br>A2<br>12 11 14<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|
|eCl@ss 9.0|eCl@ss 9.0|27371601|



## ETIM 

|ETIM 2.0|ETIM 2.0|EC001437|
|---|---|---|
|ETIM 3.0|ETIM 3.0|EC001437|
|ETIM 4.0|ETIM 4.0|EC001437|
|ETIM 5.0|ETIM 5.0|EC001437|
|ETIM 6.0|ETIM 6.0|EC001437|



08/21/2017   Page 4 / 8 

https://www.phoenixcontact.com/us/products/2908822 

## Single relay - REL-MR-24DC/21HC/EX - 2908822 

## Classifications 

## UNSPSC 

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 ~~oo~~ 

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

## Additional products 

Relay base - PLC-BSP- 24DC/21HC - 2912345 14 mm PLC basic terminal block for high continuous currents 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 ~~So~~ 

08/21/2017   Page 5 / 8 

https://www.phoenixcontact.com/us/products/2908822 

## Single relay - REL-MR-24DC/21HC/EX - 2908822 

## Accessories 

Relay base - PLC-BSP- 24UC/21HC - 2912358 

14 mm PLC basic terminal block for high continuous currents 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 base - PLC-BSP- 48DC/21HC - 2912361 14 mm PLC basic terminal block for high continuous currents 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 ~~So~~ Relay base - PLC-BSC- 24DC/21HC - 2967772 14 mm PLC basic terminal block for high continuous currents with screw connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, 1 PDT, input voltage 24 V DC ~~So~~ Relay base - PLC-BSC- 24UC/21HC - 2967785 14 mm PLC basic terminal block for high continuous currents 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~~ Relay base - PLC-BSC- 48DC/21HC - 2967798 14 mm PLC basic terminal block for high continuous currents 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 ~~So~~ 

08/21/2017   Page 6 / 8 

https://www.phoenixcontact.com/us/products/2908822 

## Single relay - REL-MR-24DC/21HC/EX - 2908822 

## Accessories 

Relay base - PLC-BPT- 24DC/21HC - 2900254 

14 mm PLC basic terminal block for high continuous currents 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 ~~So~~ Relay base - PLC-BPT- 24UC/21HC - 2900255 14 mm PLC basic terminal block for high continuous currents 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 ~~So~~ Relay base - PLC-BPT- 48DC/21HC - 2900256 14 mm PLC basic terminal block for high continuous currents 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 ~~So~~ Relay base - PR1-BSC2/2X21 - 2833518 Relay base PR1..., for miniature power relay or miniature switching relay with 1 or 2 PDT or solid-state relay of same construction, 2/2 level design, screw connections, connection facility for input/interference suppression modules ~~fe~~ Relay base - PR1-BSC3/2X21 - 2833521 Relay base PR1..., for miniature power relay or miniature switching relay with 1 or 2 PDT or solid-state relay of same construction, 1/3 level design, screw connections, connection facility for input/interference suppression modules ~~oe~~ 

08/21/2017   Page 7 / 8 

https://www.phoenixcontact.com/us/products/2908822 

## Single relay - REL-MR-24DC/21HC/EX - 2908822 

## Accessories 

Relay base - PR1-BSP3/2X21 - 2833534 

Relay base PR1..., for miniature power relay or miniature switching relay with 1 or 2 PDT or solid-state relay of same construction, 1/3 level design, spring-cage connections, connection facility for input/interference suppression modules 

Relay base - RIF-1-BPT/2X21 - 2900931 

RIF-1... relay base, for miniature power relay with 1 or 2 PDTs or solid-state relays of the same design, push-in connection, plug-in option for input/suppressor modules, for mounting on NS 35/7,5 

Relay base - RIF-1-BSC/2X21 - 2900930 RIF-1... relay base, for miniature power relay with 1 or 2 changeover contacts or identical solid-state relays, screw connection, plug-in option for input/interference suppression modules, for mounting on NS 35/7,5 ~~BS~~ Phoenix Contact 2017 © - all rights reserved http://www.phoenixcontact.com 

08/21/2017   Page 8 / 8

Updated at June 10, 2026

Phoenix Contact is a global leader in industrial connection technology, automation systems, and electronic interface solutions. With decades of engineering heritage originating in Germany, the company develops robust components designed to ensure reliable power, data, and signal transmission across demanding manufacturing and industrial environments. The cornerstone of the Phoenix Contact portfolio is its industry-leading selection of connection technologies. The range features an exceptional variety of terminal blocks, including pluggable headers and sockets, highly reliable wire-to-board solutions, and versatile DIN rail terminal blocks. These foundational connectivity components are supported by a comprehensive ecosystem of power distribution blocks, interface modules, marking systems, and accessories engineered for seamless control cabinet wiring. Beyond physical connectivity, Phoenix Contact provides critical components for advanced automation, control, and system protection. The wider offering encompasses a broad spectrum of process controllers, high-efficiency AC/DC converters, and a comprehensive suite of power, safety, and solid-state relays. From precision signal converters and electronic circuit breakers to fiber optic cable assemblies, Phoenix Contact equips engineers with the high-performance technologies required to build secure, highly efficient, and future-ready industrial systems.

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