2987956
Power Relay, DPDT, 24 VAC, 1.5 A, REL-MR Series, Through Hole
- 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: 1.5A
- Relay Terminals: Solder
- Contact Material: Silver Nickel
- Contact Voltage VAC: 250V
- Contact Voltage VDC: 250V
- Contact Configuration: DPDT
| Delivery and price | |
|---|---|
| Units per pack | 10 |
| Price | 5.15 € |
| Current stock | 50+ |
| Lead time | 30 days |
https://www.phoenixcontact.com/pi/products/2987956
## Single relay - REL-MR- 24AC/21-21/MS - 2987956
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Plug-in miniature relay, with power contact, 2 PDTs, test button, mechanical switch position indicator, status LED, input voltage 24 V AC
## Your advantages
With detectable manual operation
Switching current of up to 16 A
DC types with integrated freewheeling diode
Integrated status LED
Mechanical switch position indicator
## Key Commercial Data
Packing unit 10 pc ~~CO~~ Minimum order quantity 10 pc ~~a G~~ GTIN ~~pA CO~~ GTIN 4046356480666
## 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|
|---|---|
|Mains frequency|50/60 Hz|
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https://www.phoenixcontact.com/pi/products/2987956
## Single relay - REL-MR- 24AC/21-21/MS - 2987956
## Technical data
Coil side
**==> picture [525 x 539] intentionally omitted <==**
**----- Start of picture text -----**<br>
|||
|---|---|
|Typical input current at UN|32 mA|
|Typical response time|3 ms ... 12 ms (depending on phase relation)|
|Typical release time range|2 ms ... 8 ms (depending on phase relation)|
|Power dissipation for nominal condition|0.77 W|
|_——S—|
|Contact side|
|Contact type|2 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|16 A (20 ms)|
|Limiting continuous current|8 A|
|Interrupting rating (ohmic load) max.|2000 VA (for 250 V AC)|
|Switching capacity|1 A (at 24 V, DC13)|
|1.5 A (at 24 V, AC15)|
|1.5 A (at 120 V, AC15)|
|1.5 A (at 240 V, AC15)|
|Motor load according to UL 508|1/4 HP, 120 V AC (N/O contact)|
|1/2 HP, 240 V AC (N/O contact)|
|1/4 HP, 120 V AC (N/C contact)|
|1/3 HP, 240 V AC (N/C contact)|
|General|
|Test voltage relay winding/relay contact|5 kV AC (50 Hz, 1 min.)|
|Test voltage relay contact/relay contact|2.5 kV AC (50 Hz, 1 min.)|
|Mechanical service life|5x 106 cycles|
|Service life, electrical|see diagram|
|Standards and Regulations|
|Connection in acc. with standard|CUL|
|Standards/regulations|EN 61810-1|
|VDE 0435-201|
|EN 50178|
|_—S————|
|Environmental Product Compliance|
|China RoHS|Environmentally friendly use period: unlimited = EFUP-e|
|No hazardous substances above threshold values|
|oo|
**----- End of picture text -----**<br>
Drawings
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https://www.phoenixcontact.com/pi/products/2987956
## Single relay - REL-MR- 24AC/21-21/MS - 2987956
## Diagram
## Dimensional drawing
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**----- Start of picture text -----**<br>
107 =========—===——==a a A PT 29 rT 12,7<br>P| Py yp Pp pp<br>106 py<br>ae<br>[Nf yyyy<br>105<br>fj SL<br>Seeeeeneeeeeeeeee<br>A GO GO GG<br>1040 LTT 1 2 TT 3 4 ETP 5 6 7 8 Eee 9 10 11 Ee 12 13 yy 14 Ty 15 16<br>Switching current [A] a e<br>oe 250 V AC, ohmic load<br>Diagram Diagram<br>2,6 20<br>{| {ttt ft ee ee ee<br>2,4 10<br>2,2<br>2 2 x 5 ee<br>pe 1,8 ee a 5 — ~N ee |<br>g§ 2 Nete<br>1,6<br>2 1,4 EP PP res 2 1 Nes<br>2 1,2 =e fF p 0,5 L |NUN<br>1 a| 26 eepo SS<br>0,8 0,2<br>0,60 S 10 20 30 40 50 E 60 70 80 90 100 0,1 me niiinine<br>10 20 30 50 70 100 200 300 400500<br>25<br>3,6<br>Cycles<br>N<br>**----- End of picture text -----**<br>
Electrical service life
Operating voltage range
Interrupting rating
Diagram
**==> picture [164 x 96] intentionally omitted <==**
**----- Start of picture text -----**<br>
1<br>0,9 a ee eee<br>0,8 ft [PEAY] fT<br>0,7<br>0,6<br>0,5 {| | | | | | | XT<br>0,4<br>0,3 1 | 0,9 ft 0,8 | 0,7 tf 0,6 ft 0,5 ft ft 0,4 yt 0,3 N 0,2<br>COS ¢ —— ><br>**----- End of picture text -----**<br>
Service life reduction factor with various cos phi
## Approvals
## Approvals
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https://www.phoenixcontact.com/pi/products/2987956
## Single relay - REL-MR- 24AC/21-21/MS - 2987956
## Approvals
Approvals
UL Recognized / cUL Recognized / VDE Zeichengenehmigung / EAC / cULus Recognized
Ex Approvals
## Approval details
> UL Recognized http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 195083
> cUL Recognized http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 195083 ~~oe~~ http://www2.vde.com/de/Institut/Online-Service/ VDE Zeichengenehmigung 40027210 VDE-gepruefteProdukte/Seiten/Online-Suche.aspx RU C- EAC DE.A*30.B.01082
> cULus Recognized ~~eee~~ Phoenix Contact 2019 © - all rights reserved http://www.phoenixcontact.com PHOENIX CONTACT GmbH & Co. KG Flachsmarktstr. 8 32825 Blomberg Germany Tel. +49 5235 300 Fax +49 5235 3 41200 http://www.phoenixcontact.com
05/16/2019 Page 4 / 4
Updated at June 5, 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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