Taco SR502-4 - 2 Zone Switching Relay w/Priority

The Taco Switching Relay is the best choice for all your zoning needs, with advanced timer and boiler functions, external diagnostic lights, switchable priority and contractor friendly PC board layouts. Combined with the time proven reliability of the 00 family of circulators and thermostats, total system integration is achieved. Additional features include built-in priority protection, premium sealed relays, compact design, fuse protected, isolated end switch and universal thermostat compatibility.

Taco Switching Relays combine clearly labeled PC board layouts with advanced features that allow for total system customization. Whether using basic priority switching or the advanced features of the -EXP controls, the job is made easy. External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups. All switching relays are UL listed, are compatible with conventional and programmable thermostats.

Features

Front Diagnostic Lights
Switchable Priority
Built-in Priority Protection
Simplified Wiring
Premium Sealed Relays
Compact Design
Fuse Protected
100% Factory Tested
Isolated End Switch
Contractor Friendly PC Board Layout
Universal Thermostat
Compatibility
24 Volt Power Output for hard wired thermostats
Field Replaceable Transformer
UL Approved
Extended 3 Year Warranty
Made in the USA

^PKZ1900085

Collection: Switching Relays

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SR504-4 - 4 Zone Switching Relay with Priority

SR502-4 - 2 Zone Switching Relay with Priority