3-Zone Switching Relay w/ Priority
Taco SR503 Switching Relay combines clearly labeled PC board layout with advanced features that allow for total system customization. External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups. Taco SR503 switching relays are UL and CSA listed, use standard “ice cube” replaceable relays and are compatible with conventional and programmable thermostats.
External Indicator Lights;
Max combined load: 15.0 AMPs;
Dimensions: 10.25" wide x 6.75" high x 2.75" deep.