2900261

Relay Socket, DIN Rail, Push In, 24 VDC, PLC-INTERFACE Series

⚠️ 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: Relay Sockets
SVHC: Hexahydromethylphthalic anhydride [1], Hexahydro-4-methylphthalic anhydride [2], Hexahydro-1-methylphthalic anhydride[3] (04-Feb-2026)
No. of Pins: -
Product Range: PLC-INTERFACE Series
Current Rating: -
Voltage Rating: 24VDC
Socket Mounting: DIN Rail
Socket Terminals: Push In

Delivery and price
Units per pack	10
Price	9.79 €
Current stock	10+
Lead time	30 days

Datasheet

https://www.phoenixcontact.com/us/products/2900261 

## Relay socket - PLC-BPT- 24DC/21RW - 2900261 

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) 

6.2 mm PLC basic terminal block for railway applications with push-in connection, without relay or solid-state relay, range from 0.7 x UN to 1.25 x UN, temperature range from -25°C to +70°C, 1 PDT, input voltage 24 V DC 

## Why buy this product 

Vibration and shock resistance according to EN 50155 

Safe isolation according to DIN EN 50178 between coil and contact 

Input voltage range of 0.7 to 1.25 x UN 

Temperature range of -25°C to +70°C 

## Key Commercial Data 

|Packing unit|1 STK|
|---|---|
|Minimum order quantity|10 STK|
|Weight per Piece (excluding packing)|30.000 g|
|Custom tariff number|85369010|
|Country of origin|Germany|



## Technical data 

Note 

|Note|Note|
|---|---|
|Utilization restriction<br>EMC: class A product, see manufacturer's declaration in the download<br>area<br>~~a~~||
|Dimensions||
|Width|6.2 mm|
|Height|80 mm|
|Depth|94 mm|
|Ambient conditions||
|Ambient temperature (operation)<br>-25 °C ... 70 °C<br>~~Ca~~||



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https://www.phoenixcontact.com/us/products/2900261 

## Relay socket - PLC-BPT- 24DC/21RW - 2900261 

## Technical data 

## Ambient conditions 

|Ambient conditions||
|---|---|
|Ambient temperature (storage/transport)|-40 °C ... 85 °C|
|Input data||
|Nominal input voltage UN<br>24 V DC<br>Status display<br>LED<br>Protective circuit<br>Damping diode, polarity protection diode<br>Damping diode<br>~~S555~~||
|Output data||
|Compatible components|Miniature relay, REL-MR-18DC/21AU, REL-MR-18DC/21|
|Connection data, input side||
|Connection name<br>Input side<br>Connection method<br>Push-in connection<br>Stripping length<br>8 mm<br>Conductor cross section solid<br>0.14 mm² ... 2.5 mm²<br>Conductor cross section flexible<br>0.14 mm² ... 2.5 mm²<br>Conductor cross section AWG<br>26 ... 14<br>~~SSS~~||
|Connection data, output side||
|Connection name<br>Output side<br>Connection method<br>Push-in connection<br>Stripping length<br>8 mm<br>Conductor cross section solid<br>0.14 mm² ... 2.5 mm²<br>Conductor cross section flexible<br>0.14 mm² ... 2.5 mm²<br>Conductor cross section AWG<br>26 ... 14<br>~~SSS~~||
|General||
|Protective circuit<br>Damping diode, polarity protection diode<br>Color<br>green<br>Operating mode<br>100% operating factor<br>Flammability rating according to UL 94<br>V0<br>Mounting position<br>any<br>Assembly instructions<br>In rows with zero spacing<br>~~SSS~~||
|Standards and Regulations||
|Connection in acc. with standard<br>CUL<br>Flammability rating according to UL 94<br>V0<br>~~ee~~||
|Environmental Product Compliance||
|China RoHS|Environmentally Friendly Use Period = 50|



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https://www.phoenixcontact.com/us/products/2900261 

## Relay socket - PLC-BPT- 24DC/21RW - 2900261 

## Technical data 

Environmental Product Compliance 

For details about hazardous substances go to tab “Downloads”, Category “Manufacturer's declaration” 

## Drawings 

Diagram 

**==> picture [167 x 138] intentionally omitted <==**

**----- Start of picture text -----**<br>
1,5<br>1,4<br>A<br>a 1,3<br>> 1,2 ij | | | | | | tr<br>ee 1,1<br>1,0 UN<br>ig 0,9 tt| i wvbe-}—+-+| | |  ||<br>0,8 i | | | | | | |<br>B<br>0,7 PPT<br>0,6 roe tt<br>20 25 30 35 40 45 50 55 60 65<br>Ambient temperature [°C]<br>Curve A:<br>[V]<br>N<br>**----- End of picture text -----**<br>


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

**----- Start of picture text -----**<br>
Circuit diagram<br>A2 O 11<br>A1 14<br>2<br>12<br>**----- End of picture text -----**<br>


**N** 

Operating voltage range 

## Classifications 

## eCl@ss 

|eCl@ss 4.0|eCl@ss 4.0|27371001|
|---|---|---|
|eCl@ss 4.1|eCl@ss 4.1|27371001|
|eCl@ss 5.0|eCl@ss 5.0|27371603|
|eCl@ss 5.1|eCl@ss 5.1|27371603|
|eCl@ss 6.0|eCl@ss 6.0|27371603|
|eCl@ss 7.0|eCl@ss 7.0|27371603|
|eCl@ss 8.0|eCl@ss 8.0|27371603|
|eCl@ss 9.0|eCl@ss 9.0|27371603|



## ETIM 

|ETIM 2.0|ETIM 2.0|EC001456|
|---|---|---|
|ETIM 3.0|ETIM 3.0|EC001456|
|ETIM 4.0|ETIM 4.0|EC001456|



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https://www.phoenixcontact.com/us/products/2900261 

## Relay socket - PLC-BPT- 24DC/21RW - 2900261 

## Classifications 

ETIM 

|ETIM 5.0<br>UNSPSC<br>~~a~~|EC001456<br>~~a~~|
|---|---|
|UNSPSC 6.01|30211917|
|UNSPSC 7.0901|39121516|
|UNSPSC 11|39121516|
|UNSPSC 12.01|39121516|
|UNSPSC 13.2|39121516|



## Approvals 

## Approvals 

## Approvals 

UL Recognized / cUL Recognized / EAC / EAC / DNV GL / cULus Recognized 

Ex Approvals 

## Approval details 

UL Recognized http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 238705 

cUL Recognized http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 238705 

EAC   EAC-Zulassung ~~PT~~ EAC   7500651.22.01.00244 ~~PT~~ DNV GL  https://www.dnvgl.com/ TAE0000196-01 ~~PT~~ 

http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm 

cULus Recognized 

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https://www.phoenixcontact.com/us/products/2900261 

Relay socket - PLC-BPT- 24DC/21RW - 2900261 Accessories Accessories Bridge Continuous plug-in bridge - FBST 500-PLC RD - 2966786 Continuous plug-in bridge, Length: 500 mm, Color: red / Continuous plug-in bridge - FBST 500-PLC BU - 2966692 Continuous plug-in bridge, Length: 500 mm, Color: blue ~~Jo~~ Continuous plug-in bridge - FBST 500-PLC GY - 2966838 Continuous plug-in bridge, Length: 500 mm, Color: gray / Single plug-in bridge - FBST 6-PLC RD - 2966236 Single plug-in bridge, Length: 6 mm, Number of positions: 2, Color: red 

Single plug-in bridge - FBST 6-PLC BU - 2966812 Single plug-in bridge, Length: 6 mm, Number of positions: 2, Color: blue 

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https://www.phoenixcontact.com/us/products/2900261 

## Relay socket - PLC-BPT- 24DC/21RW - 2900261 

## Accessories 

Single plug-in bridge - FBST 6-PLC GY - 2966825 

Single plug-in bridge, Length: 6 mm, Number of positions: 2, Color: gray 

Single plug-in bridge - FBST 8-PLC GY - 2967688 

Single plug-in bridge, Length: 8 mm, Number of positions: 2, Color: gray 

## DIN rail 

DIN rail, unperforated - NS 35/ 7,5 V2A UNPERF 2000MM - 0801377 

DIN rail, unperforated, Width: 35 mm, Height: 7.5 mm, Length: 2000 mm, Color: silver 

DIN rail perforated - NS 35/ 7,5 PERF 2000MM - 0801733 

DIN rail, material: steel galvanized and passivated with a thick layer, perforated, height 7.5 mm, width 35 mm, length: 2000 mm 

DIN rail, unperforated - NS 35/ 7,5 CU UNPERF 2000MM - 0801762 

DIN rail, material: Copper, unperforated, height 7.5 mm, width 35 mm, length: 2 m 

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https://www.phoenixcontact.com/us/products/2900261 

## Relay socket - PLC-BPT- 24DC/21RW - 2900261 

## Accessories 

DIN rail, unperforated - NS 35/15 UNPERF 2000MM - 1201714 

DIN rail, material: Steel, unperforated, height 15 mm, width 35 mm, length: 2 m 

DIN rail, unperforated - NS 35/15 CU UNPERF 2000MM - 1201895 

DIN rail, material: Copper, unperforated, 1.5 mm thick, height 15 mm, width 35 mm, length: 2 m 

DIN rail, unperforated - NS 35/15-2,3 UNPERF 2000MM - 1201798 

DIN rail, material: Steel, unperforated, 2.3 mm thick, height 15 mm, width 35 mm, length: 2 m 

DIN rail, unperforated - NS 35/15 AL UNPERF 2000MM - 1201756 

DIN rail, deep drawn, high profile, unperforated, 1.5 mm thick, material: aluminum, height 15 mm, width 35 mm, length 2000 mm 

DIN rail perforated - NS 35/15 PERF 2000MM - 1201730 

DIN rail, material: steel galvanized and passivated with a thick layer, perforated, height 15 mm, width 35 mm, length: 2000 mm 

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https://www.phoenixcontact.com/us/products/2900261 

## Relay socket - PLC-BPT- 24DC/21RW - 2900261 

## Accessories 

DIN rail, unperforated - NS 35/ 7,5 UNPERF 2000MM - 0801681 

DIN rail, material: Steel, unperforated, height 7.5 mm, width 35 mm, length: 2 m 

## Labeled terminal marker 

Zack marker strip - ZB 6,LGS:FORTL.ZAHLEN - 1051016 

Zack marker strip, Strip, white, labeled, can be labeled with: Plotter, Printed horizontally: Consecutive numbers 1 - 10, 11 - 20, etc. up to 491 - 500, Mounting type: Snap into tall marker groove, for terminal block width: 6.2 mm, Lettering field: 6.15 x 10.5 mm 

## Partition plate 

Separating plate - PLC-ATP BK - 2966841 

Separating plate, 2 mm thick, required at the start and end of a PLC terminal strip. Furthermore, it is used for: visual separation of groups, safe isolation of different voltages of neighboring PLC relays in acc. with DIN VDE 0106-101, isolation 

## Power module 

Power terminal block - PLC-ESK GY - 2966508 

Power terminal block, for the input of up to four potentials, for mounting on NS 35/7.5 

## Screwdriver tools 

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https://www.phoenixcontact.com/us/products/2900261 

## Relay socket - PLC-BPT- 24DC/21RW - 2900261 

## Accessories 

Screwdriver - SZF 1-0,6X3,5 - 1204517 

Actuation tool, for ST terminal blocks, also suitable for use as a bladed screwdriver, size: 0.6 x 3.5 x 100 mm, 2- component grip, with non-slip grip 

## Terminal marking 

Zack marker strip - ZB 6:UNBEDRUCKT - 1051003 

Zack marker strip, Strip, white, unlabeled, can be labeled with: Plotter, Mounting type: Snap into tall marker groove, for terminal block width: 6.2 mm, Lettering field: 6.15 x 10.5 mm 

Zack marker strip - ZB 6/WH-100:UNBEDRUCKT - 5060935 

Zack marker strip, Strip, white, unlabeled, can be labeled with: Plotter, Mounting type: Snap into tall marker groove, for terminal block width: 6.2 mm, Lettering field: 6.15 x 10.5 mm 

## Necessary add-on products 

Single relay - REL-MR- 18DC/21 - 2961383 

Plug-in miniature power relay, with power contact, 1 PDT, input voltage 18 V DC 

Single relay - REL-MR- 18DC/21AU - 2961493 

Plug-in miniature power relay, with multi-layer gold contact, 1 PDT, input voltage 18 V DC 

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https://www.phoenixcontact.com/us/products/2900261 

## Relay socket - PLC-BPT- 24DC/21RW - 2900261 

## Accessories 

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

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Updated at June 6, 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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