- SR-504-4 SR504-4 Switching Relay, 4 Zone$$Tools & Hardware Other

Four zone with priority External Indicator Lights Switchable Priority Simplified Wiring Fully Enclosed Snap-Out RelaysYou may also like C10-A10X/120VAC Relay, Releco, GP, SPDT, 120VAC, LED Indicator, One Pole Change-Over Contact$$Electrical.