2909673

Power Relay, SPDT, 24 VAC/VDC, 50 mA, PLC-INTERFACE Series, DIN Rail

⚠️ 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: Hexahydromethylphthalic anhydride [1], Hexahydro-4-methylphthalic anhydride [2], Hexahydro-1-methylphthalic anhydride[3] (25-Jun-2025)
Coil Type: -
Coil Voltage: 24VAC/VDC
Product Range: PLC-INTERFACE Series
Relay Mounting: DIN Rail
Coil Resistance: -
Contact Current: 50mA
Relay Terminals: Quick Connect
Contact Material: Silver Tin Oxide
Contact Voltage VAC: 30V
Contact Voltage VDC: 36V
Contact Configuration: SPDT

Delivery and price
Units per pack	10
Price	15.11 €
Current stock	10+
Lead time	30 days

Datasheet

https://www.phoenixcontact.com/us/products/2909673 

## Relay Module - PLC-RPT- 24UC/21AU/MS - 2909673 

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) 

PLC-INTERFACE, consisting of PLC-BPT.../21 basic terminal block with Push-in connection and plug-in miniature relay with multi-layer gold contact and manual operation, 1 changeover contact, 24 V AC/DC input voltage 

The figure shows the 24 V DC version 

## Key Commercial Data 

|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|Key Commercial Data|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|Packing unit<br>1<br>~~Ge~~|||||||||||||||||||||
|GTIN<br>GTIN<br>4055626378060<br>Custom tariff number<br>85364190<br>~~po~~<br>~~a~~<br>~~GO~~<br>~~QO~~|||||||||||||||||||||
|Technical data|||||||||||||||||||||
|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|80 mm|||||||||||||||||||
|Depth|94 mm|94 mm|||||||||||||||||||
|Ambient conditions|||||||||||||||||||||
|Ambient temperature (operation)|-40 °C ... 60 °C||||-40 °C ... 60 °C||-40 °C ... 60 °C||-40 °C ... 60 °C||||||||||||
|Ambient temperature (storage/transport)|-40 °C ... 85 °C||||-40 °C ... 85 °C||-40 °C ... 85 °C||-40 °C ... 85 °C||||||||||||
|Coil side|||||||||||||||||||||
|Nominal input voltage UN<br>24 V AC/DC<br>~~—k{£&*~v_—aes~~|||||||||||||||||||||



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https://www.phoenixcontact.com/us/products/2909673 

## Relay Module - PLC-RPT- 24UC/21AU/MS - 2909673 

## Technical data 

## Coil side 

|Coil side||
|---|---|
|Typical input current at UN|11 mA (at UN= 24 V AC)|
||8.5 mA (at UN= 24 V DC)|
|Typical response time|6 ms|
|Typical release time|15 ms|
|Protective circuit|Bridge rectifier Bridge rectifier|
|Operating voltage display|Yellow LED|
|Power dissipation for nominal condition|0.26 W|



## Contact side 

|Typical release time<br>Protective circuit<br>Operating voltage display<br>Power dissipation for nominal condition<br>Contact side|15 ms<br>Bridge rectifier Bridge rectifier<br>Yellow LED<br>0.26 W|
|---|---|
|Contact type|1 PDT|
|Type of switch contact|Single contact|
|Contact material|AgSnO, hard gold-plated|
|Maximum switching voltage|30 V AC|
||36 V DC|
|Minimum switching voltage|100 mV (at 10 mA)|
|Min. switching current|1 mA (at 24 V)|
|Maximum inrush current|50 mA|
|Limiting continuous current|50 mA|
|Interrupting rating (ohmic load) max.|1.2 W (at 24 V DC)|
|Contact side (with destroyed gold layer)||
|Note<br>the following values are applicable if a gold layer is destroyed<br>Maximum switching voltage<br>250 V AC/DC<br>Minimum switching voltage<br>5 V (at 100 mA)<br>Limiting continuous current<br>6 A<br>Min. switching current<br>10 mA (at 12 V)<br>Interrupting rating (ohmic load) max.<br>140 W (at 24 V DC)<br>20 W (at 48 V DC)<br>18 W (at 60 V DC)<br>23 W (at 110 V DC)<br>40 W (at 220 V DC)<br>1500 VA (for 250 V AC)<br>Switching capacity in acc. with DIN VDE 0660/IEC 60947<br>2 A (at 24 V, DC13)<br>0.2 A (at 110 V, DC13)<br>0.1 A (at 220 V, DC13)<br>3 A (at 24 V, AC15)<br>3 A (at 120 V, AC15)<br>3 A (at 230 V, AC15)<br>~~=e~~||
||07/18/2017   Page 2 / 11|



https://www.phoenixcontact.com/us/products/2909673 

## Relay Module - PLC-RPT- 24UC/21AU/MS - 2909673 

## Technical data 

**==> picture [542 x 332] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||
|---|---|
|Connection data input side|
|Connection name|Coil side|
|Connection method|Push-in connection|
|Stripping length|8 mm|
|Conductor cross section solid|0.14 mm² ... 2.5 mm²|
|Conductor cross section flexible|0.14 mm² ... 2.5 mm²|
|Conductor cross section AWG|26 ... 14|
|SSS|
|Connection data output side|
|Connection name|Contact side|
|Connection method|Push-in connection|
|Stripping length|8 mm|
|Conductor cross section solid|0.14 mm² ... 2.5 mm²|
|Conductor cross section flexible|0.14 mm² ... 2.5 mm²|
|Conductor cross section AWG|26 ... 14|
|SS|
|General|
|Test voltage relay winding/relay contact|4 kV AC (50 Hz, 1 min.)|
|Operating mode|100% operating factor|
|Degree of protection|RT III (Relay)|
|IP20 (Relay socket)|
|Mechanical service life|2 x 107 cycles|
|Mounting position|any|
|Assembly instructions|In rows with zero spacing|

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


## Standards and Regulations 

**==> picture [442 x 154] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||
|---|---|
|Designation|Standards/regulations|
|Standards/regulations|IEC 60664|
|IEC 60664A|
|DIN VDE 0110|
|DIN EN 50178/DIN VDE 0160 (in relevant parts)|
|DIN EN 50178/VDE 0160|
|IEC 60255/DIN VDE 0435 (in relevant parts)|
|Degree of pollution|3|
|Overvoltage category|III|
|Flammability rating according to UL 94|V0|
|Conformance|CE-compliant|

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


## Environmental Product Compliance 

China RoHS Environmentally Friendly Use Period = 50 

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https://www.phoenixcontact.com/us/products/2909673 

## Relay Module - PLC-RPT- 24UC/21AU/MS - 2909673 

## Technical data 

Environmental Product Compliance 

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

## Drawings 

Diagram 

**==> picture [169 x 137] intentionally omitted <==**

**----- Start of picture text -----**<br>
U 1,4<br>UN A<br>1,3<br>- TEST<br>PTT<br>1,2<br>PPT AT<br>1,1<br>UN TT rr<br>1<br>—seevocratvae |<br>0,9 PTT<br>TT Try<br>0,80,7 SSSPPT B rr<br>20 25 30 35 40 45 50 55 60 65<br>TU [ [°C]]<br>**----- End of picture text -----**<br>


## Circuit diagram 

**==> picture [112 x 43] intentionally omitted <==**

**----- Start of picture text -----**<br>
A2 11<br>A1 1 14<br>12<br>**----- End of picture text -----**<br>


## Curve A 

Maximum permissible continuous voltage Umax with limiting continuous current on the contact side (see relevant technical data) Curve B Minimum permissible operate voltage Uop after pre-excitation (see relevant technical data) 

## Articles in set 

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 

## Single relay - REL-MR- 24DC/21AU/MS - 2909645 

Plug-in miniature power relay, with multi-layer gold contact, 1 changeover contact, manual operation, 24 V DC input voltage 

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https://www.phoenixcontact.com/us/products/2909673 

## Relay Module - PLC-RPT- 24UC/21AU/MS - 2909673 

## 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|EC001437|
|---|---|
|ETIM 3.0|EC001437|
|ETIM 4.0|EC001437|
|ETIM 5.0|EC001437|
|ETIM 6.0|EC001437|
|UNSPSC||



UNSPSC 13.2 39122334 ~~a~~ 

## 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 

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https://www.phoenixcontact.com/us/products/2909673 

## Relay Module - PLC-RPT- 24UC/21AU/MS - 2909673 

## Accessories 

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 

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 

Controller board 

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https://www.phoenixcontact.com/us/products/2909673 

## Relay Module - PLC-RPT- 24UC/21AU/MS - 2909673 

## Accessories 

System connection - PLC-V8/FLK14/IN - 2296553 

V8 adapter for 8 x PLC-INTERFACE (6.2 mm); Controller: PLC system cabling of input cards; connection 1: Plug connection; connection 2: 1x IDC/FLK pin strip (14-position); number of channels: 8; control logic: positive switching 

System connection - PLC-V8/FLK14/IN/M - 2304115 

V8 adapter for 8 x PLC-INTERFACE (6.2 mm); Controller: PLC system cabling of input cards; connection 1: Plug connection; connection 2: 1x IDC/FLK pin strip (14-position); number of channels: 8; control logic: negative switching 

System connection - PLC-V8/D15S/IN - 2296074 

V8 adapter for 8 x PLC-INTERFACE (6.2 mm); Controller: PLC system cabling of input cards; connection 1: Plug connection; connection 2: 1x D-SUB pin strip (15-position); number of channels: 8; control logic: positive switching 

System connection - PLC-V8/D15B/IN - 2296087 

V8 adapter for 8 x PLC-INTERFACE (6.2 mm); Controller: PLC system cabling of input cards; connection 1: Plug connection; connection 2: 1x D-SUB socket strip (15-position); number of channels: 8; control logic: positive switching 

## 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 

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https://www.phoenixcontact.com/us/products/2909673 

## Relay Module - PLC-RPT- 24UC/21AU/MS - 2909673 

## Accessories 

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 

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, unperforated, Width: 35 mm, Height: 15 mm, Length: 2000 mm, Color: silver 

## 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 

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https://www.phoenixcontact.com/us/products/2909673 

## Relay Module - PLC-RPT- 24UC/21AU/MS - 2909673 

## Accessories 

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 

## 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: CMS-P1-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 

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https://www.phoenixcontact.com/us/products/2909673 

## Relay Module - PLC-RPT- 24UC/21AU/MS - 2909673 

## Accessories 

## Screwdriver tools 

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: CMS-P1-PLOTTER, PLOTMARK, 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: CMS-P1-PLOTTER, PLOTMARK, Mounting type: Snap into tall marker groove, for terminal block width: 6.2 mm, Lettering field: 6.15 x 10.5 mm 

## Marker for terminal blocks - UC-TM 6 - 0818085 

Marker for terminal blocks, Sheet, white, unlabeled, can be labeled with: BLUEMARK CLED, BLUEMARK LED, CMS-P1PLOTTER, PLOTMARK, Mounting type: Snap into tall marker groove, for terminal block width: 6.2 mm, Lettering field: 5.6 x 10.5 mm 

## Marker for terminal blocks - UCT-TM 6 - 0828736 

Marker for terminal blocks, Sheet, white, unlabeled, can be labeled with: THERMOMARK PRIME, THERMOMARK CARD, BLUEMARK CLED, BLUEMARK LED, TOPMARK LASER, Mounting type: Snap into tall marker groove, for terminal block width: 6.2 mm, Lettering field: 5.6 x 10.5 mm 

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https://www.phoenixcontact.com/us/products/2909673 

## Relay Module - PLC-RPT- 24UC/21AU/MS - 2909673 

## Accessories 

## Spare parts 

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 

Single relay - REL-MR- 24DC/21AU/MS - 2909645 

Plug-in miniature power relay, with multi-layer gold contact, 1 changeover contact, manual operation, 24 V DC input voltage 

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

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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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