Available. PSR-SPP- 24DC/FSP/2X1/1X2. The Phoenix Contact PSR-SPP-24DC/FSP/2X1/1X2 is a coupling relay designed for safe switch-off applications in both high and low demand scenarios, adhering to Safety Integrity Level (SIL) 3 standards. This relay effectively couples digital output signals to peripheral devices, ensuring reliable and secure operation. It features two enabling current paths and one signal contact, making it suitable for applications requiring a safe state off. The integrated test pulse filter enhances system reliability by filtering out unwanted signals. With a compact width of 17.5 mm, it is designed for easy integration into standard DIN rail mounting systems. The relay operates with a 24 V DC control voltage, with a permissible range of 20.4 V to 26.4 V DC, and typically consumes 55 mA of current. Its mechanical service life is rated for 10 million cycles, ensuring long-term durability. The relay is equipped with surge protection, utilizing a 33 V suppressor diode between the control circuits (A1/A2). This feature safeguards the relay and connected components from voltage spikes, enhancing overall system protection. The PSR-SPP-24DC/FSP/2X1/1X2 is ideal for applications where safety and reliability are paramount, such as industrial automation systems requiring secure signal coupling and isolation.