The 858-304 is a Relay Socket with 4PDT AgCe contacts, screw terminal, industrial relay for DIN 35 rail. This 858-series relay sockets are designed for conventional industrial relays with standard pin spacing. The sockets accommodate 33.5 to 35.5mm high relays equipped with 4 changeovers. All socket contacts have two Push-in CAGE CLAMP® termination points for either 2 x 0.34mm² to 1.5mm² or 1 x 2.5mm² cross-sections. Push-in CAGE CLAMP® COMPACT allows direct insertion of solid conductors and ferruled conductors from 20AWG/0.5mm² and larger. Speedy socket service rapidly replaces relays without removing conductors.