Siemens AG Safety Relays 3RQ10001EB00

The 3RQ1000-1EB00 is a safety coupling relay with one NO and one NC contact, designed for fail-safe applications up to SIL 2 and PL c. It operates on 24 V DC with an 80% to 120% voltage range and uses screw terminals for conductors from 0.5 to 4 mm² solid or 0.5 to 1.5 mm² stranded. The relay has a mechanical life of 10 million cycles, a 5 A thermal current rating, and switches 2 A at 250 V AC or 2 A at 24 V DC. Mounted on a 35 mm DIN rail, it measures 100 mm high, 17.5 mm wide, and 120 mm deep. Operating temperature range is -25 °C to +60 °C with IP20 protection. It meets IEC 60947-5-1 for positive drive, with a MTTFd of 470 years and 85% safe failure fraction.