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

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