Housed in a robust sheet steel enclosure, the 4-Way Relay Unit features 4 pairs of 240V AC mains rated relay contacts that can be operated using switch negative signals from up to 4 control panels. Isolate switches and status LED’s are provided for each relay. Main features 4x 24V DC operated inputs 4x Mains rated relays Relay status LED indicators Isolate switches for each relay Two changeover contacts per relay (normally open & normally closed) Can be configured to provide control from up to four Control Panels Spring leaf 2.5mm capacity terminals Sheet steel enclosure, complete with cable entry knockouts