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Shipping nationwide to the USA + Canada

Shipping nationwide to the USA + Canada

About this part

The Taco SR504-4 is a 4-zone switching relay designed for hydronic heating zoning applications. It provides priority switching, external diagnostic lights, and contractor-friendly PC board layout for reliable control of circulators. Compatible with the 00 family of circulators and standard thermostats for total system integration.

  • 4 zones with priority switching
  • 120 VAC input transformer
  • 20 amp maximum combined load
  • Dimensions 10-1/4" width x 7" height x 2-3/4" depth
  • Front diagnostic indicator lights
  • UL listed, compatible with conventional and programmable thermostats
  • Isolated end switch, fuse protected, 100% factory tested

Specifications

Brand
Taco
Part number
SR504-4
SKU
909185
Category
Controls & Regulators
Shipping weight
5 lb

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