Safety relay RSr-L-SIL-8A-Q, OSSD input, 2 NO 8A, latch reset, 24VDC, SIL 3 / PL e, IP67

RSr-L-SIL-8A-Q is a remote safety relay from Banner's RSr family. It converts the OSSD outputs of a safety device into two volt-free normally open relay contacts, so a light curtain, a safety I/O block or a safety PLC can switch loads that do not tolerate OSSD test pulses. This is the latch model: after a stop the outputs stay off until a reset signal is applied on the A-code port.

• Input: one dual-channel OSSD pair, ON threshold > 15 V DC, OFF below 5 V DC
• Output: two normally open safety contacts, 8 A at 24 V DC (DC1) per IEC/EN 60947-5-1
• Supply: 24 V DC ±20 %, under 100 mA, approximately 2 W
• Response time 20 ms maximum, minimum OFF-state recovery 400 ms
• Housing: thermoplastic polyurethane, IP65 / IP67, 138 × 50 × 27.8 mm, −25 °C to +60 °C
• Connection: four 5-pin M12 connectors — two A-code for signals and reset, two L-code for the switched power

The relay mounts directly on the machine with two M4 screws or a bracket, so distributed safety outputs can switch motors, valves and brakes without a control cabinet. There are no DIP switches and nothing to program. Four LED indicators show status, fault, both safety inputs and the relay output.

SIL 3 per IEC 61508 and EN 62061, Category 4 / PL e per EN ISO 13849-1; CE marked and UL listed.