Available. ST 2-5-QUATTRO-PE. The Phoenix Contact ST 2,5-QUATTRO-PE is a protective conductor terminal block designed for efficient grounding in industrial automation systems. This terminal block features four spring-cage connections, accommodating conductor cross-sections from 0.08 mm² to 4 mm², ensuring a secure and reliable connection. It is suitable for mounting on NS 35/7.5 and NS 35/15 DIN rails, offering flexibility in installation. The terminal block is colored green-yellow, adhering to standard color codes for protective conductors. It is rated for a nominal voltage of 800 V and a nominal current of 24 A, with a maximum load current of 28 A when using 4 mm² conductors. The rated surge voltage is 8 kV, providing robust protection against voltage spikes. Designed for applications in the railway industry, machine building, and plant engineering, the ST 2,5-QUATTRO-PE ensures a high level of safety and reliability in grounding applications.