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2903257
Safety Relay, 24 VDC, 4PST-NO, PSR-SCP Series, DIN Rail, 6 A, Screw
⚠️ 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: Safety Relays
- SVHC: No SVHC (21-Jan-2025)
- IP Rating: IP20, IP54
- Coil Voltage: 24VDC
- Product Range: PSR-SCP Series
- Relay Mounting: DIN Rail
- Contact Current: 6A
- Relay Terminals: Screw
- Contact Material: Silver Copper Nickel
- Contact Configuration: 4PST-NO
- Contact Voltage AC Nom: 250V
- Contact Voltage DC Nom: 250V
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 308.96 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
https://www.phoenixcontact.com/in/products/2903257 ## Safety relays - PSR-SCP-24DC/MXF3/4X1/2X2/B - 2903257 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) Multifunctional safety relay for emergency stop, safety doors, and light grid up to SIL 3, Cat. 4, PL e, automatically or manually monitored activation, 4 N/O contacts, 3 safety functions, 2 shutdown levels, plug-in screw terminal block ## Your advantages Up to Cat.4/PL e according to EN ISO 13849-1, SILCL 3 according to EN 62061, SIL 3 according to IEC 61508 3 safety functions in one device Low housing width of only 22.5mm No software configuration required Also available with push-in connection ## Key Commercial Data Packing unit 1 pc GTIN ~~I~~ GTIN 4046356729819 Weight per Piece (excluding packing) 297.000 g ~~fo~~ Custom tariff number 85371098 ~~[Lo |~~ Country of origin Germany ~~[ |~~ ## Technical data ## Note EMC: class A product, see manufacturer's declaration in the download Utilization restriction area ## Dimensions |Width|22.5 mm| |---|---| |Height|112.2 mm| |Depth|114.5 mm| Ambient conditions 12/28/2018 Page 1 / 7 https://www.phoenixcontact.com/in/products/2903257 ## Safety relays - PSR-SCP-24DC/MXF3/4X1/2X2/B - 2903257 ## Technical data ## Ambient conditions |Ambient conditions|| |---|---| |Ambient temperature (operation)|-20 °C ... 45 °C (see derating curve)| |Ambient temperature (storage/transport)|-25 °C ... 85 °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)| |Input data|| |Nominal input voltage UN|24 V DC| |Input voltage range in reference to UN|0.85 ... 1.1| |Typical input current at UN|125 mA (with actuated relays)| ||55 mA (Two-channel 24 V/0 V + max. 200 mA control (message outputs| ||32/62) with non-actuated relays)| |Current consumption|typ. 5 mA (Imax/Ixinputs)| ||20 mA (in electric torque)| |Voltage at input/start and feedback circuit|24 V -15 %; +10 % (first channel: 24 V; second channel: 0 V)| |Typical response time|175 ms (monitored/manual start)| ||250 ms (automatic start)| |Typ. starting time with Us|250 ms (when controlled via A1)| |Typical release time|25 ms (when controlled via S11/S12 and S21/S22)| ||20 ms (when controlled via A1)| |Concurrence input 1/2|∞| |Recovery time|1 s (Availability time after activation of sensor circuit: 100ms)| |Operating voltage display|1 x green LED| |Status display|5 green LEDs| |Protective circuit|Surge protection Suppressor diode| |Maximum switching frequency|0.5 Hz| |Max. permissible overall conductor resistance|100 Ω| |Filter time|max. 1.5 ms (Test pulse duration; for all equivalent inputs)| ||min. 7.5 ms (Test pulse rate; for all equivalent inputs)| |Output data|| |Contact type<br>4 enabling current paths<br>2 semiconductor alarm outputs<br>Contact material<br>AgCuNi, +0.2 -0.4 µm Au<br>Maximum switching voltage<br>250 V AC/DC<br>Minimum switching voltage<br>10 V AC/DC<br>Limiting continuous current<br>6 A (N/O contact)<br>max. 100 mA (Alarm output (24 V DC))<br>Maximum inrush current<br>6 A<br>Inrush current, minimum<br>10 mA<br>Sq. Total current<br>72 A<br>2(ITH<br>2= I1<br>2+ I2<br>2+ I3<br>2+ I4<br>2)<br>Interrupting rating (ohmic load) max.<br>1500 VA (250 V AC, τ = 0 ms)<br>~~==~~|| ||12/28/2018 Page 2 / 7| https://www.phoenixcontact.com/in/products/2903257 ## Safety relays - PSR-SCP-24DC/MXF3/4X1/2X2/B - 2903257 ## Technical data ## Output data |||66 VA (220 V DC, τ = 0 ms)| |---|---|---| |||66 VA (110 V DC, τ = 0 ms)| |||100 W (48 V DC, τ = 0 ms)| |||144 VA (24 V DC, τ = 0 ms)| ||Maximum interrupting rating (inductive load)|48 VA (24 V DC, τ = 40 ms)| |||43 W (48 V DC, τ = 40 ms)| ||Switching capacity min.|0.1 W| ||Mechanical service life|10x 10<br>6cycles| ||Switching capacity (360/h cycles)|5 A (0,1 Hz; DC13; 24 V)| ||Output fuse|6 A gL/gG NEOZED (N/O contact)| |||4 A gL/gG NEOZED (for low-demand applications)| |General||| |Relay type<br>Electromechanical relay with forcibly guided contacts in accordance with<br>EN 50205<br>Nominal operating mode<br>100% operating factor<br>Net weight<br>297 g<br>Mounting position<br>vertical or horizontal<br>Mounting type<br>DIN rail mounting<br>Assembly instructions<br>See derating curve<br>Degree of protection<br>IP20<br>Min. degree of protection of inst. location<br>IP54<br>Housing color<br>yellow<br>~~a~~||| |Connection data||| |Connection method<br>Screw connection<br>pluggable<br>Yes<br>Conductor cross section solid min.<br>0.2 mm²<br>Conductor cross section solid max.<br>2.5 mm²<br>Conductor cross section flexible min.<br>0.2 mm²<br>Conductor cross section flexible max.<br>2.5 mm²<br>Conductor cross section AWG min.<br>24<br>Conductor cross section AWG max.<br>12<br>Stripping length<br>7 mm<br>Screw thread<br>M3<br>Safety-related characteristic data<br>Stop category<br>0<br>Safety Integrity Level (SIL)<br>3<br>3<br>Designation<br>EN ISO 13849<br>Performance level (PL)<br>e (5 A DC13; 3 A AC15; 8760 cycles/year)<br>~~=~~<br>~~—~~<br>~~SSS~~||| |||12/28/2018 Page 3 / 7| https://www.phoenixcontact.com/in/products/2903257 ## Safety relays - PSR-SCP-24DC/MXF3/4X1/2X2/B - 2903257 ## Technical data ## Safety-related characteristic data |Category|4| |---|---| |Safety Integrity Level Claim Limit (SIL CL)|3| |Designation|EN 50156| |Safety Integrity Level (SIL)|3| ## Standards and Regulations |Designation|Air clearances and creepage distances between the power circuits| |---|---| |Standards/regulations|DIN EN 50178/VDE 0160| |Rated insulation voltage|250 V AC| |Rated surge voltage/insulation|4 kV/basic isolation (safe isolation, reinforced insulation and 6 kV<br>between input circuit, enabling current paths and safety circuit 1 (13/14,<br>23/24) and safety circuit 2 (43/44, 53/54).)| |Degree of pollution|2| |Overvoltage category|III| ## 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”,<br>Category “Manufacturer's declaration”| ## Drawings ## Circuit diagram ## Circuit diagram **==> picture [421 x 113] intentionally omitted <==** **----- Start of picture text -----**<br> A1 A2 S34 S35 S36 S37 13 23 43 53<br>oO @) oO e) oO oO ? ?<br>POWER24V DC Reset Reset K 1<br>K1/K2 K3/K4 K1/K2<br>A T T<br>Logic K 2<br>ERR<br>I1/I2I3/I4I5/I6 ri 4 OUTPUT MonitoringOUTPUTK1/K2 MonitoringOUTPUTK3/K4 ath K3/K4K 3 y | | Emergencystop Safety door Li gh t gr id type<br>K 4 Open B1 OSSD1 OSSD2<br>B2<br>I1...I6 S11 S21 32 62 14 24 44 54<br>Closed<br>S11 S21 I1 I2 I3 I4 I5 I6<br>**----- End of picture text -----**<br> 12/28/2018 Page 4 / 7 https://www.phoenixcontact.com/in/products/2903257 ## Safety relays - PSR-SCP-24DC/MXF3/4X1/2X2/B - 2903257 Application drawing **==> picture [357 x 431] intentionally omitted <==** **----- Start of picture text -----**<br> L<br>ll Emergency Safety door2 Lightgridtypea IU lial<br>stop<br>open B1 Receiver<br>B2<br>OSDD1 OSDD2<br>closed K5<br>A1 S11 S21 I1 I2 I3 I4 I5 I6 13 23 43 53 K6<br>S0 S1 S2<br>ly tia} M<br>K1 K3<br>PSR-...-24DC/MXF3/4x1/2x2/B<br>K2 K4<br>slik ol. 7<br>K7<br>A2 S34 S35 S36 S37 14 24 32 44 54 62 K8<br>(Emergency M<br>stop) S5 K5 K7<br>S3 S4 L_] K6 L K8 |<br>a r N lf gl<br>K5 K6<br>K7 K8<br>Circuit diagram<br>S2<br>S0<br>OSSD<br>+24VDC<br>S1 S2<br>[Po<br>A1 S11 S21 I1 I2 I3 I4 I5 I6 13 23 43 53<br>OutputsRelays K1 OutputsRelays K3<br>Logic<br>K1&K2 K2 K3&K4 K4<br>A2 S34 S35 S36 S37 14 24 32 44 54 62<br>ee<br>Reset K5 K7<br>K6 K8<br>K5 K6 | [| LC]<br>K7 K8<br>Transmitter<br>S0<br>S1<br>**----- End of picture text -----**<br> ## Classifications ## eCl@ss |eCl@ss 4.0|eCl@ss 4.0|27371102| |---|---|---| |eCl@ss 4.1|eCl@ss 4.1|27371102| |eCl@ss 5.0|eCl@ss 5.0|27371901| |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| 12/28/2018 Page 5 / 7 https://www.phoenixcontact.com/in/products/2903257 ## Safety relays - PSR-SCP-24DC/MXF3/4X1/2X2/B - 2903257 ## Classifications ETIM ETIM 4.0 EC001449 ETIM 5.0 EC001449 ETIM 6.0 EC001449 ~~_—————~~ UNSPSC UNSPSC 13.2 39121501 ## Approvals ## Approvals ## Approvals UL Listed / cUL Listed / Functional Safety / UL Listed / cUL Listed / Functional Safety / EAC / EAC ## Ex Approvals ## Approval details 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 01/205/5353.00/13 ~~oe~~ UL Listed http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 140324 ~~eo~~ cUL Listed http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 140324 ~~oo~~ 12/28/2018 Page 6 / 7 https://www.phoenixcontact.com/in/products/2903257 ## Safety relays - PSR-SCP-24DC/MXF3/4X1/2X2/B - 2903257 Approvals Functional Safety 01/205/5353.00/13 ~~ee~~ RU C- EAC DE.A*30.B.01082 ~~a~~ RU C- EAC DE.A*30.B.01082 ~~———~~ Phoenix Contact 2018 © - all rights reserved http://www.phoenixcontact.com 12/28/2018 Page 7 / 7
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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