The PSR-PS20-1NO-1NC-24DC-SC safety relay from Phoenix Contact is a highly advanced coupling relay designed for SIL 3 high- and low-demand applications. It enables the safe coupling of digital output signals to the periphery and provides a reliable solution for safety-critical applications. With an operating voltage of 24 V/DC and a response time of 35 ms, this relay ensures fast and precise signal transmission. It features a release current path, a feedback current path, and a digital reporting output, facilitating the monitoring and control of safety functions. The device is suitable for mounting on DIN rails and is characterized by a robust design that allows for a long lifespan of up to 10 million mechanical cycles. The use of polybutylene terephthalate (PBT) as the housing material ensures high resistance and reliability under various operating conditions.

• Suitable for SIL 3 high- and low-demand applications
• Fast response time of 35 ms
• Robust design with a lifespan of up to 10 million cycles
• DIN rail mounting for easy installation
• Fixed screw terminals for secure electrical connections.