440R-C23139 Guardmaster MSR131RTP Safety Relay.
Security Features Dual channel input, can be connected to 2NC or 1NC contacts; Internal real-time detection of short circuits (cross faults) between channels Once any channel is disconnected or a cross fault occurs, the 3-channel redundant safety normally open contacts (13-14, 23-24, 33-34) will immediately disconnect, and the 1-channel normally closed auxiliary contacts (41-42) will be used for status indication Support automatic, manual, and monitoring reset: - Automatic: Short circuit X1-X2, the fault disappears and recovers automatically - Manual: Connect the normally open reset button in series in the X1-X2 circuit - Monitoring: Connect the external contactor normally closed auxiliary point in series in the X1-X2 circuit to achieve welding monitoring Electrical specifications Power supply: 24V AC/DC universal (0.85-1.1 Un) Safe output: 3NO, 2 A/250 V AC (AC-15), 2 A/30 V DC (DC-13) Auxiliary output: 1NC, 2A Response time: ≤ 30 ms; electrical lifespan 1 × 10 ? times security level ISO 13849-1 Cat.4 / PL e，IEC 61508 / EN 62061 SIL 3 Cross fault detection+dual channel redundancy to meet the highest PL e requirements Installation and Environment 35mm DIN rail, shell 45mm wide, IP40 (body)/IP20 (terminals) Working temperature -5...+55 ° C; humidity ≤ 90% RH, no condensation Terminal torque 0.6 N · m, wire 0.2... 2.5 mm 2; An external 2 A gG fuse is required on the power supply side“
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