The Tapeswitch PRSU / 4 is a high-performance safety relay module designed to monitor pressure-sensitive safety edges, mats, and bumpers in industrial environments. Operating on a versatile 24V AC/DC (50-60 Hz) power supply, it ensures optimal machine guarding by complying with strict Category 3, PLd (EN ISO 13849-1) safety standards. The module features a rapid response time of less than 30ms and offers both external and auto reset functionalities, providing flexible integration and enhanced protection for both personnel and critical equipment.