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2900349
Power Relay, DPDT, 24 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: Lead (04-Feb-2026)
- Coil Type: -
- Coil Voltage: 24VDC
- Product Range: PLC-INTERFACE Series
- Relay Mounting: DIN Rail
- Coil Resistance: -
- Contact Current: 50mA
- Relay Terminals: Quick Connect
- Contact Material: Silver Nickel
- Contact Voltage VAC: 30V
- Contact Voltage VDC: 36V
- Contact Configuration: DPDT
| Delivery and price | |
|---|---|
| Units per pack | 10 |
| Price | 59.93 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
https://www.phoenixcontact.com/us/products/2900349 ## Relay Module - PLC-RPT- 24UC/21-21AU/RW - 2900349 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 for railway applications, consisting of basic terminal block with push-in connection and plug-in miniature relay with multi-layer gold contact, range: 0.7 x UN to 1.25 x UN, temperature class TX: -40°C to +70°C, 2 PDTs, input voltage 24 V DC The figure shows a version with a screw connection ## Product Features Optimum relay operation thanks to wide-range electronics Vibration and shock resistance according to EN 50155 Safe isolation according to DIN EN 50178 between coil and contact Certified according to EN 50155 Spring-cage and Push-in connection technology Input voltage range of 0.7 to 1.25 x UN (1.4 x UN briefly) Temperature range from -40°C to +70°C (+85°C briefly) ## Key commercial data |Packing unit|1 pc| |---|---| |Weight per Piece (excluding packing)|99.99 GRM| |Custom tariff number|85364190| |Country of origin|Germany| ## Technical data Note EMC: class A product, see manufacturer's declaration in the download Utilization restriction area ~~ee~~ Dimensions Width 14 mm Height 80 mm ~~ee~~ 10/10/2014 Page 1 / 11 https://www.phoenixcontact.com/us/products/2900349 ## Relay Module - PLC-RPT- 24UC/21-21AU/RW - 2900349 ## Technical data ## Dimensions |Ambient temperature (operation)<br>Ambient temperature (storage/transport)<br>Coil side<br>~~ee~~|-40 °C ... 70 °C (Temperature class TX)<br>-40 °C ... 85 °C<br>~~ee~~| |---|---| |Nominal input voltage UN|24 V DC| |Input voltage range in reference to UN|0.7 ... 1.25| |Typical input current at UN|20 mA| |Typical response time|5 ms| |Typical release time|11 ms| |Operating voltage display|Yellow LED| |Protective circuit|Bridge rectifier Bridge rectifier| ||Free-wheeling diode Damping diode| ||Surge protection| ||RCZ filter| ||Wide-range electronics| ## Contact side |Contact side|Free-wheeling diode Damping diode<br>Surge protection<br>RCZ filter<br>Wide-range electronics| |---|---| |Contact type|2 PDT| |Contact material|AgNi, hard gold-plated| |Maximum switching voltage|30 V AC| ||36 V DC| |Minimum switching voltage|100 mV (at 10 mA)| |Maximum inrush current|50 mA| |Min. switching current|1 mA (at 24 V)| |Limiting continuous current|50 mA| |Interrupting rating (ohmic load) max.|1.2 W (at 24 V DC)| |Note|the following values are applicable if a gold layer is destroyed| |Maximum switching voltage|250 V AC/DC (Separating plate PLC-ATP must be installed for voltages<br>larger than 250 V (L1, L2, L3) between identical terminal blocks in adjacent<br>modules.)| |Minimum switching voltage|5 V AC/DC| |Limiting continuous current|6 A| |Maximum inrush current|8 A| |Min. switching current|10 mA| |Interrupting rating (ohmic load) max.|140 W (at 24 V DC)| ||100 W (at 48 V DC)| 10/10/2014 Page 2 / 11 https://www.phoenixcontact.com/us/products/2900349 ## Relay Module - PLC-RPT- 24UC/21-21AU/RW - 2900349 |Technical data|| |---|---| |Contact side|| |60 W (at 60 V DC)<br>44 W (at 110 V DC)<br>60 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>0.2 A (at 250 V, DC13)<br>2 A (at 24 V, AC15)<br>2 A (at 120 V, AC15)<br>2 A (at 250 V, AC15)<br>~~—_-~~|| |General|| |Test voltage relay winding/relay contact<br>Test voltage PDT/PDT<br>Operating mode<br>Degree of protection<br>Mechanical service life<br>Inflammability class according to UL 94<br>Standards/regulations<br>Rated surge voltage / insulation<br>Rated insulation voltage<br>Pollution degree<br>Surge voltage category<br>Mounting position<br>Assembly instructions<br>Connection data<br>Connection method<br>Stripping length<br>Conductor cross section stranded min.<br>Conductor cross section stranded max.<br>Conductor cross section solid min.<br>Conductor cross section solid max.<br>~~=~~|5 kVrms(50 Hz, 1 min.)<br>2.5 kVrms(50 Hz, 1 min.)<br>100% operating factor<br>Relay socket<br>RT III (Relay)<br>Approx. 3 x 10<br>7cycles<br>V0<br>EN 50155 (VDE 0115 part 200)<br>EN 50178<br>IEC 62103<br>EN 61373<br>EN 50121<br>6 kV / Basic isolation<br>250 V AC<br>2<br>III<br>any<br>In rows with zero spacing<br>Push-in connection<br>8 mm<br>0.14 mm²<br>2.5 mm²<br>0.14 mm²<br>2.5 mm²<br>~~|~~| 10/10/2014 Page 3 / 11 https://www.phoenixcontact.com/us/products/2900349 ## Relay Module - PLC-RPT- 24UC/21-21AU/RW - 2900349 ## Technical data Connection data Conductor cross section AWG/kcmil max 14 Conductor cross section AWG/kcmil min. 26 ~~es~~ ## 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|27371001| |eCl@ss 5.1|eCl@ss 5.1|27371001| |eCl@ss 6.0|eCl@ss 6.0|27371001| |eCl@ss 7.0|eCl@ss 7.0|27371001| |eCl@ss 8.0|eCl@ss 8.0|27371001| |eCl@ss 5.0<br>27371001<br>eCl@ss 5.1<br>27371001<br>eCl@ss 6.0<br>27371001<br>eCl@ss 7.0<br>27371001<br>eCl@ss 8.0<br>27371001|eCl@ss 5.0<br>27371001<br>eCl@ss 5.1<br>27371001<br>eCl@ss 6.0<br>27371001<br>eCl@ss 7.0<br>27371001<br>eCl@ss 8.0<br>27371001| |---|---| |ETIM<br>ETIM 4.0<br>EC000196<br>ETIM 5.0<br>EC000196<br>~~ee~~|| |UNSPSC|| |UNSPSC 6.01|30211916| |UNSPSC 7.0901|39121515| |UNSPSC 11|39121515| |UNSPSC 12.01|39121515| |UNSPSC 13.2|39121515| ## Approvals ## Approvals ## Approvals GL / UL Listed / cUL Listed / UL Recognized / cUL Recognized / cUL Listed / cULus Recognized / cULus Listed / cULus Listed / cULus Listed / null / null / null / null Ex Approvals Approvals submitted 10/10/2014 Page 4 / 11 https://www.phoenixcontact.com/us/products/2900349 ## Relay Module - PLC-RPT- 24UC/21-21AU/RW - 2900349 ## Approvals Approval details GL ~~CT~~ UL Listed cUL Listed UL Recognized cUL Recognized cUL Listed cULus Recognized cULus Listed cULus Listed cULus Listed ~~CT~~ 10/10/2014 Page 5 / 11 https://www.phoenixcontact.com/us/products/2900349 ## Relay Module - PLC-RPT- 24UC/21-21AU/RW - 2900349 Approvals ~~CT PT PT~~ ## 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 10/10/2014 Page 6 / 11 https://www.phoenixcontact.com/us/products/2900349 ## Relay Module - PLC-RPT- 24UC/21-21AU/RW - 2900349 ## Accessories 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 ~~a~~ Single plug-in bridge - FBST 14-PLC BK - 2967691 **==> picture [63 x 81] intentionally omitted <==** **----- Start of picture text -----**<br> a<br>**----- End of picture text -----**<br> Labeled terminal marker Single plug-in bridge, Length: 14 mm, Number of positions: 2, Color: black 10/10/2014 Page 7 / 11 https://www.phoenixcontact.com/us/products/2900349 ## Relay Module - PLC-RPT- 24UC/21-21AU/RW - 2900349 ## Accessories Zack marker strip - ZB10,LGS:FORTL.ZAHLEN - 1053014 Zack marker strip, Strip, white, labeled, can be labeled with: Plotter, Printed horizontally: Consecutive numbers 1 - 10, 11 - 20, etc. up to 991 - 1000, Mounting type: Snap into tall marker groove, for terminal block width: 10.2 mm, Lettering field: 10.15 x 10.5 mm ## Mounting 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 DIN rail, unperforated - NS 35/15 UNPERF 2000MM - 1201714 DIN rail, material: Steel, unperforated, height 15 mm, width 35 mm, length: 2 m 10/10/2014 Page 8 / 11 https://www.phoenixcontact.com/us/products/2900349 ## Relay Module - PLC-RPT- 24UC/21-21AU/RW - 2900349 ## Accessories 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 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 Partition plate 10/10/2014 Page 9 / 11 https://www.phoenixcontact.com/us/products/2900349 ## Relay Module - PLC-RPT- 24UC/21-21AU/RW - 2900349 ## Accessories 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 Zack marker strip - ZB10/WH-100:UNBEDRUCKT - 5060883 Zack marker strip, Strip, white, unlabeled, can be labeled with: Plotter, Mounting type: Snap into tall marker groove, for terminal block width: 10.2 mm, Lettering field: 10.15 x 10.5 mm 10/10/2014 Page 10 / 11 https://www.phoenixcontact.com/us/products/2900349 ## Relay Module - PLC-RPT- 24UC/21-21AU/RW - 2900349 ## Accessories Zack marker strip - ZB 10:UNBEDRUCKT - 1053001 Zack marker strip, Strip, white, unlabeled, can be labeled with: Plotter, Mounting type: Snap into tall marker groove, for terminal block width: 10.2 mm, Lettering field: 10.5 x 10.15 mm ## Drawings ## Diagram ## Diagram **==> picture [443 x 150] intentionally omitted <==** **----- Start of picture text -----**<br> 20 a 107 ————<br>10 || TT}, a<br>6 106<br>SS= 4 1 At [fff] | | Tf<br>2 — ee een SS 1<br>SF QR Re ——— _— ee ee ee<br>>» 1 SACS| 4 N |NUK 3 2 TT 105 oNSSS<br>2<br>0,5<br>0,3<br>BN 0,2 ee|<br>104<br>0,1 a 0 Lit 1 2 ti 3 4 | 5 tt 6 7 t 8 9 t 10<br>10 20 30 50 70 100 200 300<br>Switching voltage [V] Switching current [A] ——- ><br>1 AC, ohmic load 1 250 V AC, ohmic load (DC coils)<br>2 DC, ohmic load, contacts in series 2 250 V AC, ohmic load (AC coils)<br>3 DC, ohmic load<br>4 DC, L/R = 40 ms<br>Cycles<br>**----- End of picture text -----**<br> **==> picture [74 x 7] intentionally omitted <==** **----- Start of picture text -----**<br> Electrical service life<br>**----- End of picture text -----**<br> Interrupting rating Circuit diagram **==> picture [149 x 83] intentionally omitted <==** **----- Start of picture text -----**<br> 21<br>24<br>22<br>A2 O 11<br>A1 3 14<br>12<br>**----- End of picture text -----**<br> Phoenix Contact 2014 © - all rights reserved http://www.phoenixcontact.com 10/10/2014 Page 11 / 11
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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