Single Zone Hot Water Circulator Switching Relay With Easy Wiring And Plug And Play Style No Fuss Dry Contacts LED Indicator Ready For Quick Replacement Of Circulator Motors In Home Heating Systems

Plug-and-play single zone hot water circulator relay
✔️ 1-zone switching relay, dry contacts, LED indicator, UL listed

The Taco SR501 Switching Relay is a single-zone control module designed to replace older relays in hot water heating systems. It powers a circulator motor for one zone and works with conventional or programmable thermostats in residential boilers or radiant floor setups.

✅ Easy to wire 1-zone switching relay
✅ Snap-in PC board easily replaces other relays
✅ UL and CSA listed, uses standard ice cube relay
✅ External indicator lights provide quick diagnostics
✅ Replaces Honeywell R845A and similar relays

💡 What is a single zone hot water circulator relay used for in home heating systems?
This handy control module manages a circulator motor for a dedicated zone.
- single-zone relay for hydronic heating control
- compatible with conventional and programmable thermostats
- UL and CSA listed for safety
- diagnostic LED indicator for quick service

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