Taco 3-Zone Switching Relay with Priority, SR503-4

The SR503-4 from Taco is a 3-Zone Switching Relay with Priority. It 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.


Features:

  • External Indicator Lights;
  • Switchable Priority;
  • Simplified Wiring;
  • Fully Enclosed Snap-Out Relays;
  • Compact Design;
  • Fuse Protected;
  • 100% Factory Tested;
  • Isolated End Switch;
  • Contractor Friendly PC Board Layout;
  • Universal Thermostat Compatibility;
  • UL and CSA Approved;
  • 24 Volt Power Input or Output Terminal;
  • Made in the USA;


Technical Specifications:

  • Zones: 3;
  • Power: 120VAC;
  • Max combined load: 15.0 AMPs;
  • Dimensions: 10.25" wide x 6.75" high x 2.75" deep.


Warranty:

  • Extended 3 Year Warranty; 
Zones
3 Zone
Application
Heating
Series
SR Switching Relays
Product Type
Switching Relays
Brand
Taco

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Taco 3-Zone Switching Relay with Priority, SR503-4

  • Views: 2961
  • Brand: Taco
  • Model: SR503-4
  • UPC: 687752857566
  • Availability: In Stock
  • Usually ships: within 1 business day(s)
  • $ 168.95
  • 4 or more $ 164.95

Tags: Switching Relays, Heating Accesories, Hydronic Heating, Heating Supplies, Radiant Heating System, Heating and Cooling