8501RS miniature plug in relays are designed for control circuit logic applications. These relays are designed to be plugged into a relay socket. This makes for very easy replacement. This relay plugs into an 8501NR34 or 8501NR34B relay socket. Relay is available with 4PDT contact arrangements. It has four normally open and four normally closed contacts. The contacts have a 15 ampere resistive rating at 277 VAC and at 28VDC, a 10 ampere resistive rating at 277 VAC, a 1/2 HP rating at 120 VAC, a 1 HP rating at 277 VAC and a B300 inductive rating. Relays can be ordered with a wide variety of coil voltages. This relay has a 24 VAC nonreplaceable coil. Relay does not have a green LED indicator. 8501RS relays are UL listed with Square D relay sockets, UL component recognized and CSA certified.