Safety relay modules and sensors
Using safety relay modules, you can reliably implement safety functions in machines and systems. They monitor signals from emergency stop buttons, light grids, and safety door switches, and initiate a safe state where necessary. The PSR product range comprises safety relays with fixed or configurable safety functions, zero-speed and over-speed safety relays, and safe coupling relays.
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PSR-MC73-5NO-1DO-24DC-SP
Safety relay for emergency stop, safety doors, light grids up to SIL 3, Cat. 4, PL e, 1- or 2-channel operation, cross-circuit detection, can be retriggered, off-/on delay of 0.2 s to 300 s, 5 enabling current paths, U<sub>S</sub> = 24 V DC, plug-in Push-in terminal block
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PSR-ME20-3NO-1NC-24DC-SC
Safety relay for emergency stops, safety doors, and light grids up to SIL 2, Cat. 3, PL d, 1- or 2-channel operation, automatic or manual, monitored start, 3 enabling current paths, 1 signaling current path, U<sub>S</sub> = 24 V DC, plug-in screw terminal block
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PSR-MM25-1NO-2DO-24DC-SC
Safety relay module for sensor-free zero-speed monitoring for 3- and 1-phase motors up to SIL 3, Cat. 3, PL e, 2-channel evaluation of the residual voltage of AC, three-phase, and DC motors, plug-in screw terminal block, width: 12.5 mm
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PSR-MM25-1NO-2DO-24DC-SP
Safety relay module for sensor-free zero-speed monitoring for 3- and 1-phase motors up to SIL 3, Cat. 3, PL e, 2-channel evaluation of the residual voltage of AC, three-phase, and DC motors, plug-in Push-in terminal block, width: 12.5 mm
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PSR-MM30-2NO-2DO-24DC-SC
2-channel over-speed and zero-speed safety relay up to SIL 3, Cat. 4, PL e, 2 safe relay outputs, suitable for connecting HTL, TTL, or sine/cosine encoders as well as proximity switches, plug-in screw terminal block, width: 22.5 mm
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PSR-MM30-2NO-2DO-24DC-SP
2-channel over-speed and zero-speed safety relay up to SIL 3, Cat. 4, PL e, 2 safe relay outputs, suitable for connecting HTL, TTL, or sine/cosine encoders as well as proximity switches, plug-in Push-in terminal block, width: 22.5 mm
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PSR-MM35-1NO-1DO-24DC-SC
Safety relay module for sensor-free speed and speed range monitoring up to SIL 3, Cat. 4, PL e, 2-channel evaluation of the rotating field of AC and three-phase motors, plug-in screw terminal block, width: 12.5 mm
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PSR-MM35-1NO-1DO-24DC-SP
Safety relay module for sensor-free speed and speed range monitoring up to SIL 3, Cat. 4, PL e, 2-channel evaluation of the rotating field of AC and three-phase motors, plug-in Push-in terminal block, width: 12.5 mm
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PSR-MS20-1NO-1DO-24DC-SC
Safety relay for emergency stop and safety doors up to SIL 1, Cat. 1, PL c, depending on the application up to SIL 3, Cat. 4, PL e, 1-channel operation, automatic start, 1 enabling current path, U<sub>S</sub> = 24 V DC, fixed screw terminal block
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PSR-MS25-1NO-1DO-24DC-SC
Safety relay for emergency stop and safety doors up to SIL 1, Cat. 1, PL c, depending on the application up to SIL 3, Cat. 4, PL e, 1-channel operation, manual, monitored start, 1 enabling current path, U<sub>S</sub> = 24 V DC, fixed screw terminal block
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PSR-MS30-1NO-24DC-SC
Safety relay for emergency stop and safety doors up to SILCLSIL 3, Cat. 4, PL e, 1 or 2-channel operation, automatic start, cross-circuit detection, 1 enabling current path, U<sub>S</sub> = 24 V DC, fixed screw terminal block
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PSR-MS35-1NO-24DC-SC
Safety relay for emergency stop and safety doors up to SIL 3, Cat. 4, PL e, 1 or 2-channel operation, manual, monitored start, cross-circuit detection, 1 enabling current path, U<sub>S</sub> = 24 V DC, fixed screw terminal block
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PSR-MS40-1NO-1DO-24DC-SC
Safety relay for emergency stop and safety doors up to SIL 3, Cat. 4, PL e, 1 or 2-channel operation, automatic start, 1 enabling current path, U<sub>S</sub> = 24 V DC, fixed screw terminal block
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PSR-MS45-1NO-1DO-24DC-SC
Safety relay for emergency stop and safety doors up to SIL 3, Cat. 4, PL e, 1 or 2-channel operation, manual, monitored start, 1 enabling current path, U<sub>S</sub> = 24 V DC, fixed screw terminal block
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