PSR-MS25-1NO-1DO-24DC-SC 2904951 PHOENIX CONTACT Safety relay for emergency stop and safety doors up to SILC.. View larger
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PSR-MS25-1NO-1DO-24DC-SC 2904951 PHOENIX CONTACT Safety relay for emergency stop and safety doors up to SILC..





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Safety relay for emergency stop and safety doors up to SILCL 1, Cat. 1, PL c, depending on the application up to SILCL 3, Cat. 4, PL e, 1-channel operation, manual, monitored start, 1 enabling current path, US = 24 V DC, fixed screw terminal block

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Width6.8 mm
Height93.1 mm
Depth102.5 mm

Ambient conditions

Ambient temperature (operation)-40 °C ... 60 °C (observe derating)
Ambient temperature (storage/transport)-40 °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)
Vibration (operation)10 Hz ...150 Hz, 2g
Maximum altitudemax. 2000 m (Above sea level)

Input data

Rated control circuit supply voltage US24 V DC -15 % / +10 %
Power consumption at UStyp. 1 W
Rated control supply current IStyp. 42 mA
Typical inrush current4.5 A (Δt = 120 µs at Us)
Current consumption< 5 mA (with Us/Ix to S12)
< 10 mA (with Us/Ix at the start circuit)
Voltage at input/start and feedback circuit24 V DC -15 % / +10 %
Typical response time< 175 ms
Typical release time< 20 ms (when controlled via A1 or S12)
Recovery time< 500 ms
Status display2 x green LEDs
Maximum switching frequency0.5 Hz
Max. permissible overall conductor resistance150 Ω
Filter time1 ms (at A1 in the event of voltage dips at Us)
max. 1.5 ms (at S12; test pulse width)
min. 7.5 ms (at S12; test pulse rate)
Test pulse rate = 5 x Test pulse width

Output data

Contact type1 enabling current path
Contact materialAgSnO2
Minimum switching voltage20 V AC/DC
Maximum switching voltage250 V AC/DC
Limiting continuous current6 A (N/O contact)
Inrush current, minimum3 mA
Maximum inrush current6 A
Sq. Total current36 A2 (see to derating)
Switching capacitymin. 60 mW
Output fuse6 A gL/gG (N/O contact)
4 A gL/gG (for low-demand applications)


Relay typeElectromechanical relay with forcibly guided contacts in accordance with IEC/EN 61810-3 (EN 50205)
Mechanical service life10 x 106 cycles
Net weight69 g
Mounting typeDIN rail mounting
Assembly instructionsSee derating curve
Degree of protectionIP20
Min. degree of protection of inst. locationIP54
Mounting positionvertical or horizontal
Parameters as per EN ISO 138491 (up to Cat. 4 depending on the application)
Stop category0
Parameters for IEC 615081
Housing materialPBT

Connection data

Connection methodScrew connection
Conductor cross section solid min.0.2 mm²
Conductor cross section solid max.2.5 mm²
Conductor cross section flexible min.0.2 mm²
Conductor cross section flexible max.2.5 mm²
Conductor cross section AWG min.26
Conductor cross section AWG max.12
Stripping length12 mm
Screw threadM3

Datasheet - PDF

PHOENIX CONTACT-2904951-PSR-MS25-1NO-1DO-24DC-SCEnglish134 KbytesPHOENIX CONTACT-2904951-PSR-MS25-1NO-1DO-24DC-SC

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