2900378
Solid State Relay, SPDT, 500 mA, 48 VDC, DIN Rail, Push In
- Manufacturer: PHOENIX CONTACT
- Product type:
- SVHC: Lead (04-Feb-2026)
- Load Current: 500mA
- Product Range: PLC-INTERFACE Series
- Relay Mounting: DIN Rail
- Switching Mode: -
- Relay Terminals: Push In
- Control Voltage Max: 28.8VDC
- Control Voltage Min: 19.2VDC
- Contact Configuration: SPDT
- Operating Voltage Max: 48VDC
- Operating Voltage Min: 3VDC
| Delivery and price | |
|---|---|
| Units per pack | 20 |
| Price | 20.59 € |
| Current stock | 10+ |
| Lead time | 30 days |
https://www.phoenixcontact.com/in/products/2900378 ## Solid-state relay module - PLC-OPT- 24DC/ 48DC/500/W - 2900378 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 with electronic PDT contact, consisting of PLC-BPT…/21 basic terminal block with push-in connection and integrated miniature solid-state relay, for mounting on DIN rail NS 35/7,5, 1 PDT, input: 24 V DC, output: 3 - 48 V DC/500 mA The figure shows a version with a screw connection ## Product Features - Wear-free switching with no contact bounce - Resistant to vibrations and shocks - Protective circuit in input and output - Option of bridging adjacent modules - DC voltage outputs of up to 300 V DC/1 A or up to 24 V DC/10 A - Electronic PDT output of up to 48 V DC/500 mA - Status indicator Key Commercial Data ~~GO~~ Packing unit 10 pc GTIN ~~po~~ Weight per Piece (excluding packing) 30.19 g ~~GO~~ Custom tariff number 85364190 ~~GO GO~~ 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>~~ee~~|| |Dimensions|| |Width|6.2 mm| |Height|80 mm| |Depth|86 mm| 03/14/2016 Page 1 / 5 https://www.phoenixcontact.com/in/products/2900378 ## Solid-state relay module - PLC-OPT- 24DC/ 48DC/500/W - 2900378 ## Technical data ## Ambient conditions |Ambient conditions|| |---|---| |Ambient temperature (operation)|-25 °C ... 60 °C| |Ambient temperature (storage/transport)|-40 °C ... 85 °C| |Input data|| |Nominal input voltage UN|24 V DC| |Input voltage range in reference to UN|0.8 ... 1.2| |Switching threshold "0" signal in reference to UN|≤ 0.4| |Switching threshold "1" signal in reference to UN|≥ 0.8| |Typical input current at UN|3 mA| |Typical response time|0.03 ms| |Typical turn-off time|0.15 ms| |Operating voltage display|Yellow LED| |Type of protection|Protection against polarity reversal| ||Surge protection| |Protective circuit/component|Polarity protection diode| |Transmission frequency|1000 Hz| |Output data|| |Output voltage range|3 V DC ... 48 V DC| |Limiting continuous current|500 mA (see derating curve)| |Min. load current|1 mA| |Voltage drop at max. limiting continuous current|< 1.2 V| |Output circuit|2-wire, floating| |Type of protection|Protection against polarity reversal| ||Surge protection| |Protective circuit/component|Polarity protection diode| |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>~~SS~~|| ||03/14/2016 Page 2 / 5| https://www.phoenixcontact.com/in/products/2900378 ## Solid-state relay module - PLC-OPT- 24DC/ 48DC/500/W - 2900378 ## Technical data ## General |General|| |---|---| |Mounting position|any| |Assembly instructions|In rows with zero spacing| |Operating mode|100% operating factor| |Flammability rating according to UL 94|V0| |Designation|Standards/regulations| |Standards/regulations|IEC 60664| ||EN 50178| ||IEC 62103| |Rated surge voltage/insulation|4 kV / basic insulation| |Rated insulation voltage|300 V| |Degree of pollution|2| |Overvoltage category|III| |Standards and Regulations|| |Connection in acc. with standard<br>CUL<br>Designation<br>Standards/regulations<br>Standards/regulations<br>IEC 60664<br>EN 50178<br>IEC 62103<br>Rated insulation voltage<br>300 V<br>Rated surge voltage/insulation<br>4 kV / basic insulation<br>Degree of pollution<br>2<br>Overvoltage category<br>III<br>Flammability rating according to UL 94<br>V0<br>Classifications<br>eCl@ss<br>eCl@ss 4.0<br>27371102<br>eCl@ss 4.1<br>27371102<br>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>27371604<br>ETIM<br>ETIM 2.0<br>EC001504<br>ETIM 3.0<br>EC001504<br>ETIM 4.0<br>EC000196<br>ETIM 5.0<br>EC001504~~—~~<br>~~—~~|| ||03/14/2016 Page 3 / 5| https://www.phoenixcontact.com/in/products/2900378 ## Solid-state relay module - PLC-OPT- 24DC/ 48DC/500/W - 2900378 ## Classifications ## UNSPSC |UNSPSC 6.01|UNSPSC 6.01|30211916| |---|---|---| |UNSPSC 7.0901|UNSPSC 7.0901|39121542| |UNSPSC 11|UNSPSC 11|39121542| |UNSPSC 12.01|UNSPSC 12.01|39121542| |UNSPSC 13.2|UNSPSC 13.2|39121542| ## Approvals ## Approvals ## Approvals UL Listed / cUL Listed / UL Recognized / cUL Recognized / EAC / cULus Recognized / cULus Listed Ex Approvals Approvals submitted ## Approval details UL Listed cUL Listed UL Recognized cUL Recognized EAC ~~PT~~ 03/14/2016 Page 4 / 5 https://www.phoenixcontact.com/in/products/2900378 ## Solid-state relay module - PLC-OPT- 24DC/ 48DC/500/W - 2900378 ## Approvals **==> picture [70 x 8] intentionally omitted <==** **----- Start of picture text -----**<br> cULus Recognized<br>**----- End of picture text -----**<br> **==> picture [473 x 158] intentionally omitted <==** **----- Start of picture text -----**<br> cULus Listed<br>Drawings<br>Diagram Circuit diagram<br>12<br><=<br>5 0,5 A1 MM<br>33 0,35 14<br>S + ><br>A2 11<br>0<br>30 40 50 60<br>Ambient temperature [°C] A2 11<br>**----- End of picture text -----**<br> The illustration shows the derating curve for PLC-...24DC/48DC/500/W Phoenix Contact 2016 © - all rights reserved http://www.phoenixcontact.com 03/14/2016 Page 5 / 5
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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