Omron Industrial Automation SR103AM01 Safety Relay

The Omron SR103AM01 Safety Relay is a DIN rail‑mounted safety monitoring relay designed for industrial machine safety and emergency-stop circuits; it is commonly installed in control panels to monitor emergency stop buttons, safety gates, and protective devices, and is trusted by maintenance teams, OEMs, and system integrators for replacement, retrofit, and ensuring reliable safe shutdown of machinery during fault conditions. It provides 3 NO safety contacts + 1 auxiliary contact, operates from 24 V AC/DC, and delivers a contact rating up to 3 A; the device also features self-monitoring, short-circuit detection, and redundant safety outputs to maintain fail-safe operation even if one path fails. Rated up to Category 4 (EN standards compliant), this relay supports rigorous fault detection and compliance for machine protection, and its operating temperature range spans -15°C to 40°C, making it suitable for typical industrial environments. The SR103AM01’s DIN rail mounting and compact footprint simplify integration into existing safety circuits and control panels, while its 24 V AC/DC supply compatibility supports a range of industrial power layouts. Common replacements include Omron SR103AM02, Pilz PNOZ X3, and Allen-Bradley 440R-H23176.