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Taco Enhanced Zone Pump Switching Relay

Completely customize your system.

The Taco Pump 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.

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
Electronic parts are not returnable. Please check to make sure you have chosen the correct part.

Single Zone Switching Relay
TacoSR501-4.pdf

Part No: SR501-4

$63.03 each

Two Zone Switching Relay w/Priority
TacoSR502-4.pdf

Part No: SR502-4

$142.99 each

Three Zone Switching Relay w/Priority
TacoSR503-4.pdf

Part No: SR503-4

$152.33 each

Four Zone Switching Relay w/Priority
TacoSR504-4.pdf

Part No: SR504-4

$183.39 each

Six Zone Switching Relay w/Priority
TacoSR506-4.pdf

Part No: SR506-4

$252.50 each
↓EXP Models w/ PowerPorts ↓

One Zone Switching Relay w/Priority
Taco501-EXP-4.pdf

Part No: SR501-EXP-4

$130.99 each

Three Zone Switching Relay w/Priority & 3 PowerPorts
TacoSR503-EXP-4.pdf

Part No: SR503-EXP-4

$149.47 each

Four Zone Switching Relay w/Priority & 3 PowerPorts
TacoSR504-EXP-4.pdf

Part No: SR504-EXP-4

$197.40 each

Six Zone Switching Relay w/Priority & 3 PowerPorts
TacoSR506-EXP-4.pdf

Part No: SR506-EXP-4

$256.95 each
↓Specialty Switching Relays ↓

1 Zone Switching Relay, High Current

Part No: SR501-HC-4

$91.75 each

FuelMizer, 1 Zone Switching Relay w/Outdoor Reset
TacoSR501-OR-4.pdf

Part No: SR501-OR-4

$181.21 each

Contact

Toll Free: (866) 361-4782

Fax: 206-274-1501

17420 Vashon Hwy SW
PO Box 2270
Vashon, WA 98070

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