2-1393143-2 is a 4-pole relay socket designed for mounting R10 signal relays with PCB terminal connections and strip grounding provision. The socket features spring brass tin-plated contacts with a polyester body material, rated for a maximum current of 10 A and a voltage drop of 30 mV at 10 A. It provides dielectric strength of 1,000 Vrms and insulation resistance of 10? megohms, ensuring reliable electrical isolation and performance. The socket is commonly used in industrial control circuits, instrumentation panels, and electrical systems where secure relay mounting and signal routing are required.