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2909656
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] (04-Feb-2026)
- Coil Type: -
- Coil Voltage: 24VAC/VDC
- Product Range: PLC-INTERFACE Series
- Relay Mounting: DIN Rail
- Coil Resistance: -
- Contact Current: 50mA
- Relay Terminals: Screw
- Contact Material: Silver Tin Oxide
- Contact Voltage VAC: 30V
- Contact Voltage VDC: 36V
- Contact Configuration: SPDT
| Delivery and price | |
|---|---|
| Units per pack | 10 |
| Price | 20.95 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
https://www.phoenixcontact.com/us/products/2909656
## Relay Module - PLC-RSC- 24UC/21AU/MS - 2909656
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-BSC.../21 basic terminal block with screw 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
~~Ge~~ Packing unit 1 GTIN ~~_ a~~ GTIN ~~GO~~ 4055626377919 ~~QO~~ Custom tariff number 85364190
## 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)|-40 °C ... 60 °C|
|Ambient temperature (storage/transport)|-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/2909656
## Relay Module - PLC-RSC- 24UC/21AU/MS - 2909656
## 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 / 12|
https://www.phoenixcontact.com/us/products/2909656
## Relay Module - PLC-RSC- 24UC/21AU/MS - 2909656
## Technical data
|Connection data input side|
|---|
|Connection name<br>Coil side<br>Connection method<br>Screw connection<br>Stripping length<br>8 mm<br>Screw thread<br>M3<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>Contact side<br>Connection method<br>Screw connection<br>Stripping length<br>8 mm<br>Screw thread<br>M3<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>~~SS~~|
|General|
|Test voltage relay winding/relay contact<br>4 kV AC (50 Hz, 1 min.)<br>Operating mode<br>100% operating factor<br>Degree of protection<br>IP20 (Relay socket)<br>Mechanical service life<br>2 x 10<br>7cycles<br>Mounting position<br>any<br>Assembly instructions<br>In rows with zero spacing<br>~~SS~~|
|Standards and Regulations|
|Designation<br>Standards/regulations<br>Standards/regulations<br>IEC 60664<br>EN 50178<br>Degree of pollution<br>3<br>Overvoltage category<br>III<br>Flammability rating according to UL 94<br>V0<br>Conformance<br>CE-compliant<br>Environmental Product Compliance<br>China RoHS<br>Environmentally Friendly Use Period = 50<br>For details about hazardous substances go to tab “Downloads”, Category<br>“Manufacturer's declaration”<br>~~a~~|
|Drawings|
|07/18/2017 Page 3 / 12|
https://www.phoenixcontact.com/us/products/2909656
## Relay Module - PLC-RSC- 24UC/21AU/MS - 2909656
**==> picture [169 x 155] intentionally omitted <==**
**----- Start of picture text -----**<br>
Diagram<br>U 1,4<br>UN A<br>- 1,31,21,1 TERECPPCCPPeSP<br>UN<br>1<br>—Tsaavocratvac || ||<br>PCP rr<br>0,90,8 SS B<br>0,7 PPP Pry yree<br>20 25 30 35 40 45 50 55 60 65<br>TU [ [°C]]<br>**----- End of picture text -----**<br>
**==> picture [112 x 112] intentionally omitted <==**
**----- Start of picture text -----**<br>
Circuit diagram<br>raul<br>A2 : 11<br>A1 co nc 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-BSC- 24UC/21 - 2966029
6.2 mm PLC basic terminal block 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
## 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
## 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|
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https://www.phoenixcontact.com/us/products/2909656
## Relay Module - PLC-RSC- 24UC/21AU/MS - 2909656
## Classifications
## eCl@ss
|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|
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
Continuous plug-in bridge - FBST 500-PLC GY - 2966838
Continuous plug-in bridge, length: 500 mm, color: gray
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https://www.phoenixcontact.com/us/products/2909656
## Relay Module - PLC-RSC- 24UC/21AU/MS - 2909656
## Accessories
Single plug-in bridge - FBST 6-PLC RD - 2966236
- Single plug-in bridge, length: 6 mm, number of positions: 2, color: red
- #F Single plug-in bridge - FBST 6-PLC BU - 2966812 Single plug-in bridge, length: 6 mm, number of positions: 2, color: blue
- ~~a~~ 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
System connection - PLC-V8/FLK14/OUT - 2295554
V8 adapter for 8 x PLC-INTERFACE (6.2 mm); Controller: PLC system cabling of output cards; connection 1: Plug connection; connection 2: 1x IDC/FLK pin strip (14-position); number of channels: 8; control logic: positive switching
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https://www.phoenixcontact.com/us/products/2909656
## Relay Module - PLC-RSC- 24UC/21AU/MS - 2909656
## Accessories
System connection - PLC-V8/FLK14/OUT/M - 2304102
V8 adapter for 8 x PLC-INTERFACE (6.2 mm); Controller: PLC system cabling of output 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/OUT - 2296058
V8 adapter for 8 x PLC-INTERFACE (6.2 mm); Controller: PLC system cabling of output 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/OUT - 2296061
V8 adapter for 8 x PLC-INTERFACE (6.2 mm); Controller: PLC system cabling of output cards; connection 1: Plug connection; connection 2: 1x D-SUB socket strip (15-position); number of channels: 8; control logic: positive switching
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
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https://www.phoenixcontact.com/us/products/2909656
## Relay Module - PLC-RSC- 24UC/21AU/MS - 2909656
## Accessories
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
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/2909656
## Relay Module - PLC-RSC- 24UC/21AU/MS - 2909656
## 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, 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
## 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
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https://www.phoenixcontact.com/us/products/2909656
## Relay Module - PLC-RSC- 24UC/21AU/MS - 2909656
## Accessories
## 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
## 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
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https://www.phoenixcontact.com/us/products/2909656
## Relay Module - PLC-RSC- 24UC/21AU/MS - 2909656
## Accessories
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 Spare parts Relay socket - PLC-BSC- 24UC/21 - 2966029 6.2 mm PLC basic terminal block 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 ~~eo~~
## Spare parts
Relay socket - PLC-BSC- 24UC/21 - 2966029
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https://www.phoenixcontact.com/us/products/2909656
## Relay Module - PLC-RSC- 24UC/21AU/MS - 2909656
## Accessories
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
07/18/2017 Page 12 / 12
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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