Pilz PNOZ X4 24VDC 3n/o 1n/c PLC Safety Relay

The Pilz PNOZ X4 Safety Relay is a DIN-rail mounted safety interface used in industrial safety control systems to monitor emergency stop circuits and safety devices across packaging machines, conveyors, presses, robotic cells, and automated production lines. It operates from a 24 VDC supply and provides three normally open safety contacts plus one normally closed auxiliary contact, all implemented as an electromechanical relay with a response time under 50 ms. Its compact housing is roughly 45 mm wide for DIN-rail installations, wired via screw terminals, and protected to IP20 with an operating temperature range of -10 to +55 °C. This unit supports safety performance up to Category 4 (EN ISO 13849-1) and complies with EN 60947-5-1, EN ISO 13849-1, and IEC 62061 standards. Common replacements include PILZ PNOZ X3, Siemens 3TK2824, and Schneider Electric XPSAC5121.