2987891

Power Relay, SPDT, 24 VAC, 3 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: 24VAC
Product Range: REL-MR Series
Relay Mounting: Through Hole
Coil Resistance: -
Contact Current: 3A
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	4.86 €
Current stock	10+
Lead time	30 days

Datasheet

https://www.phoenixcontact.com/in/products/2987891 

## Single relay - REL-MR- 24AC/21HC/MS - 2987891 

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 relay, with power contact, 1 PDT, test button, mechanical switch position indicator, status LED, input voltage 24 V AC 

The figure shows the 230 V version. 

## Product Features 

With detectable manual operation 

Switching current of up to 16 A Integrated status LED 

- Mechanical switch position indicator 

DC types with integrated freewheeling diode 

## Key Commercial Data 

Packing unit 10 pc ~~**a** Qe~~ Minimum order quantity 10 pc GTIN ~~I a~~ Weight per Piece (excluding packing) 18.34 g Custom tariff number 85364190 ~~a Qe~~ Country of origin China ~~a~~ ~~**Qe**~~ 

## Technical data 

## Dimensions 

|Width|12.7 mm|
|---|---|
|Height|29 mm|
|Depth|25 mm|
|Ambient conditions||
|Ambient temperature (operation)|-40 °C ... 70 °C|
|Ambient temperature (storage/transport)|-40 °C ... 85 °C|



Coil side 

Nominal input voltage UN 24 V AC ~~a~~ 

02/02/2016   Page 1 / 5 

https://www.phoenixcontact.com/in/products/2987891 

## Single relay - REL-MR- 24AC/21HC/MS - 2987891 

## Technical data 

## Coil side 

|Typical input current at UN<br>Typical response time<br>Typical release time range<br>Contact side|32 mA<br>3 ms ... 12 ms (depending on phase relation)<br>2 ms ... 8 ms (depending on phase relation)|
|---|---|
|Contact type|1 PDT|
|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|32 A (20 ms)|
|Limiting continuous current|16 A|
|Interrupting rating (ohmic load) max.|4000 VA (for 250 V AC)|
|Switching capacity in acc. with DIN VDE 0660/IEC 60947|2 A (at 24 V, DC13)|
||3 A (at 24 V, AC15)|
||3 A (at 120 V, AC15)|
||3 A (at 240 V, AC15)|



## Contact side 

General Test voltage relay winding/relay contact 5 kV AC (50 Hz, 1 min.) Mechanical service life 5 x 106 cycles Standards/regulations DIN EN 61810-1 VDE 0435-201 EN 50178 IEC 62103 ~~See~~ Standards and Regulations Connection in acc. with standard CUL Standards/regulations DIN EN 61810-1 VDE 0435-201 EN 50178 IEC 62103 ~~SSS~~ Classifications eCl@ss eCl@ss 4.0 27371104 eCl@ss 4.1 27371104 eCl@ss 5.0 27371001 eCl@ss 5.1 27371001 eCl@ss 6.0 27371001 eCl@ss 7.0 27371001 ~~SS~~ 02/02/2016   Page 2 / 5 

https://www.phoenixcontact.com/in/products/2987891 

## Single relay - REL-MR- 24AC/21HC/MS - 2987891 

## Classifications 

|Classifications|Classifications|
|---|---|
|eCl@ss<br>eCl@ss 8.0<br>27371601<br>eCl@ss 9.0<br>27371601<br>~~ee~~||
|ETIM<br>ETIM 2.0<br>EC000196<br>ETIM 3.0<br>EC000196<br>ETIM 4.0<br>EC000196<br>ETIM 5.0<br>EC001437<br>~~SSS]~~||
|UNSPSC||
|UNSPSC 6.01|30211916|
|UNSPSC 7.0901|39121515|
|UNSPSC 11|39121515|
|UNSPSC 12.01|39121515|
|UNSPSC 13.2|39121515|



## Approvals 

## Approvals 

## Approvals 

UL Recognized / VDE Zeichengenehmigung / cUL Recognized / EAC / cULus Recognized 

Ex Approvals 

Approvals submitted 

Approval details 

UL Recognized ~~ow~~ 

VDE Zeichengenehmigung 

cUL Recognized 

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https://www.phoenixcontact.com/in/products/2987891 

## Single relay - REL-MR- 24AC/21HC/MS - 2987891 

## Approvals 

EAC 

cULus Recognized 

## Accessories 

## Required add-on products 

Relay socket - PR1-BSC3/2X21 - 2833521 

Relay socket 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 

## Relay socket - PR1-BSP3/2X21 - 2833534 

Relay socket 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 

## Drawings 

## Dimensional drawing 

## Diagram 

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Operating voltage range 

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https://www.phoenixcontact.com/in/products/2987891 

## Single relay - REL-MR- 24AC/21HC/MS - 2987891 

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Diagram 

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Interrupting rating 

Service life reduction factor with various cos phi 

Phoenix Contact 2016 © - all rights reserved http://www.phoenixcontact.com 

02/02/2016   Page 5 / 5

Updated at April 26, 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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