PILZ 774310 PNOZ X3 Safety Relay

The PILZ 774310 PNOZ X3 Safety Relay is a DIN-rail mounted safety relay designed to monitor emergency-stop circuits and safety devices in industrial safety control systems. It is commonly installed on packaging machines, conveyors, presses, and automated production lines, where it provides safety-circuit protection and supports system upgrades or replacement of faulty relays for maintenance teams, OEMs, and system integrators. Key specifications include Manufacturer Part Number 774310, Brand PILZ, Series PNOZ X3, and supply voltage options of 24V AC/DC or 110–240V AC (variant dependent). It features three normally open safety contacts and one normally closed auxiliary contact, with an electromechanical output relay, and is rated up to Safety Category 4 per EN ISO 13849-1 with a response time of less than 50 ms. Mounting is DIN-rail with screw terminals, housing width about 45 mm, and operating temperature range -10°C to +55°C, with IP20 protection. Compliance covers EN 60947-5-1, EN ISO 13849-1, and IEC 62061. Common replacements include PILZ 750103 PNOZ X2 Safety Relay, Siemens 3TK2825 Safety Relay, and Schneider Electric XPSAC5121 Safety Relay.