2904665
Safety Relay, 24 VDC, SPST-NO, PSRmini Series, DIN Rail, 5 A, Push In
- Manufacturer: PHOENIX CONTACT
- Product type: Safety Relays
- SVHC: Lead (04-Feb-2026)
- IP Rating: IP20, IP54
- Coil Voltage: 24VDC
- Product Range: PSRmini Series
- Relay Mounting: DIN Rail
- Contact Current: 5A
- Relay Terminals: Push In
- Contact Material: Silver Nickel
- Contact Configuration: SPST-NO
- Contact Voltage AC Nom: 250V
- Contact Voltage DC Nom: 125V
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 226.1 € |
| Current stock | 10+ |
| Lead time | 30 days |
https://www.phoenixcontact.com/gb/products/2904665 ## Coupling relay - PSR-PC50-1NO-1DO-24DC-SP - 2904665 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) Coupling relay for SIL 3 low-demand applications, couples digital output signals to the I/O, 1 enabling current path, module for F&G applications, test pulse filter, width: 17.5 mm, pluggable Push-in terminal block The figure shows a version with a screw connection ## Your advantages Up to SIL 3 according to IEC 61508 - Easy proof test according to IEC 61508 thanks to integrated signal contact - Installation in zone 2 permitted Couples digital output signals from failsafe controllers to I/O devices (valves, etc.) for electrical isolation and power adaptation - Time saving push-in connection, tools not required - Potentials can be easily looped through – ideal for BUS applications - Intuitive use through colour coded actuation lever - Can be combined with the MSTB 2,5 range - Quick and convenient testing using integrated test option Key Commercial Data ~~a~~ Packing unit 1 pc GTIN 046356'919920 ~~AR~~ GTIN 4046356919920 ~~aD~~ Weight per Piece (excluding packing) 212.400 g ~~as~~ Custom tariff number 85364900 ~~es en~~ Country of origin Germany ~~rN~~ Note Made to Order (non-returnable) ## Technical data Note 02/27/2020 Page 1 / 6 https://www.phoenixcontact.com/gb/products/2904665 ## Coupling relay - PSR-PC50-1NO-1DO-24DC-SP - 2904665 ## Technical data Note EMC: class A product, see manufacturer's declaration in the download Utilization restriction area Dimensions Width 17.5 mm Height 117.4 mm Depth 114.5 mm ~~——~~ Ambient conditions Ambient temperature (operation) -20 °C ... 55 °C Ambient temperature (storage/transport) -40 °C ... 65 °C Max. permissible relative humidity (operation) 75 % (on average, 85% infrequently, non-condensing) Max. permissible humidity (storage/transport) 75 % (on average, 85% infrequently, non-condensing) Maximum altitude ≤ 2000 m (Above sea level) ~~a~~ Power supply Rated control circuit supply voltage US 24 V DC -15 % / +10 % (A1/A2) 20.4 V DC ... 26.4 V DC Rated control supply current IS typ. 65 mA (A1/A2) Inrush current ≤ 200 mA (A1/A2) Filter time < 2 ms (Test pulse duration) ≥ 100 ms (Test pulse rate) Diagnostic supply voltage UD 24 V DC -15 % / +10 % (24V/A2) Input current at UD typ. 15 mA (24V/A2; depending on load M1 +100 mA) Inrush current at UD 2.5 A (24V/A2; for 10 µs) Protective circuit Overload protection Suppressor diode ~~===~~ Digital inputs Number of inputs 3 (Test point for proof test) Inrush current 200 mA (Inputs TP1, TP2 and TP3) Current consumption typ. 20 mA (Input TP1) typ. 18 mA (Input TP2) typ. 35 mA (Input TP3) ~~ae~~ Relay outputs: enabling current path Output name Enabling current path Output description safety-related N/O contacts Number of outputs 1 (undelayed) Contact type 1 enabling current path Contact material AgNi, gold-flashed Switching voltage min. 15 V AC/DC without diagnostics min. 20 V AC/DC (with diagnostics) max. 250 V AC max. 125 V DC ~~a,~~ 02/27/2020 Page 2 / 6 https://www.phoenixcontact.com/gb/products/2904665 ## Coupling relay - PSR-PC50-1NO-1DO-24DC-SP - 2904665 Technical data Relay outputs: enabling current path Limiting continuous current 5 A Inrush current min. 100 mA max. 5 A Switching capacity min. 1.5 W Switching frequency max. 0.5 Hz Diagnostic threshold 20 Ω ... 18 kΩ (lower/upper) < 10 Ω (LO/LO' and NI/NI' and load resistance in the event of a short Max. permissible overall conductor resistance circuit) Mechanical service life approx. 5x 107 cycles ~~=~~ Alarm outputs Output description non-safety-related Number of outputs 1 (digital) Voltage 23 V DC Current max. 100 mA Short-circuit protection no Output fuse 150 mA fast blow ~~===~~ Times Typical pickup time at US 30 ms (when controlled via A1) Typical release time at US 30 ms (when controlled via A1) Recovery time 1 s ~~SSS~~ General Electromechanical relay with forcibly guided contacts in accordance with Relay type EN 50205 Nominal operating mode 100% operating factor Net weight 212.4 g Mounting position vertical or horizontal Mounting type DIN rail mounting Degree of protection IP20 Min. degree of protection of inst. location IP54 Housing material PBT Housing color yellow Operating voltage display Yellow LED Status display Green LED Indication Red LED Connection capacity Connection method Push-in spring connection pluggable Yes Conductor cross section solid 0.2 mm² ... 1.5 mm² Conductor cross section flexible 0.2 mm² ... 1.5 mm² ~~SSS~~ 02/27/2020 Page 3 / 6 https://www.phoenixcontact.com/gb/products/2904665 ## Coupling relay - PSR-PC50-1NO-1DO-24DC-SP - 2904665 ## Technical data ## Connection capacity |Designation|Air clearances and creepage distances between the power circuits| |---|---| |Standards/regulations|DIN EN 50178| |Rated insulation voltage|250 V AC| |Rated surge voltage/insulation|6 kV/safe isolation (through protective impedance)| |Degree of pollution|2| |Overvoltage category|III| |Shock|15g| |Vibration (operation)|2g| |Conformance|CE-compliant| |ATEX| II 3 G Ex nA nC IIC T4 Gc| |IECEx|Ex nA nC IIC T4 Gc| |UL, USA/Canada|cULus| ||Class I, Zone 2, AEx nA nC IIC T4 / Ex nA nC IIC Gc T4 X| ||Class I, Div. 2, Groups A, B, C, D, T4| |GL|C, EMC2| |Environmental simulation test|ISA-S71.04 (G3)| Environmental Product Compliance REACh SVHC Lead 7439-92-1 China RoHS Environmentally Friendly Use Period = 50 For details about hazardous substances go to tab “Downloads”, Category “Manufacturer's declaration” ~~—S-——~~ Drawings 02/27/2020 Page 4 / 6 https://www.phoenixcontact.com/gb/products/2904665 ## Coupling relay - PSR-PC50-1NO-1DO-24DC-SP - 2904665 Block diagram ## Classifications eCl@ss |eCl@ss 4.0|eCl@ss 4.0|40020600| |---|---|---| |eCl@ss 4.1|eCl@ss 4.1|40020600| |eCl@ss 5.0|eCl@ss 5.0|27371900| |eCl@ss 5.1|eCl@ss 5.1|27371900| |eCl@ss 6.0|eCl@ss 6.0|27371800| |eCl@ss 7.0|eCl@ss 7.0|27371819| |eCl@ss 8.0|eCl@ss 8.0|27371819| |eCl@ss 9.0|eCl@ss 9.0|27371819| ## ETIM |ETIM 4.0|ETIM 4.0|EC001449| |---|---|---| |ETIM 5.0|ETIM 5.0|EC001449| |ETIM 6.0|ETIM 6.0|EC001449| |ETIM 7.0|ETIM 7.0|EC001449| ## Approvals ## Approvals ## Approvals GL / UL Listed / cUL Listed / Functional Safety / EAC / cULus Listed ## Ex Approvals IECEx / ATEX / UL Listed / cUL Listed / cULus Listed 02/27/2020 Page 5 / 6 https://www.phoenixcontact.com/gb/products/2904665 ## Coupling relay - PSR-PC50-1NO-1DO-24DC-SP - 2904665 ## Approvals Approval details GL https://approvalfinder.dnvgl.com/ 11253-14 HH ~~oe~~ UL Listed http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 140324 cUL Listed http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 140324 Functional Safety 968/FSP 1011.00/14 ~~oe~~ RU C- EAC DE.A*30.B.01082 cULus Listed Phoenix Contact 2020 © - all rights reserved http://www.phoenixcontact.com 02/27/2020 Page 6 / 6
Updated at April 29, 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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