Enhanced Switching Relays Advanced features allow for total system customization   

The best choice for all your zoning needs

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.

Switching Relay
 
Advanced timer and boiler functions. External diagnostic lights. Switchable priority and contractor-friendly PC board layouts.

Enhanced Switching Relays Advanced features allow for total system customization

Catalogs (2)

TitleSheet NumberEffective Date
Enhanced Single Zone Switching Relay100-8907/28/10
Enhanced Switching Relay100-8806/25/10
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Enhanced Switching Relays Advanced features allow for total system customization

Instruction Sheets (9)

TitleSheet NumberEffective Date
SR501-4 Switching Relay102-37512/10/13
SR501-EXP-4 Switching Relay102-38512/10/13
SR502-4 Switching Relay102-37701/18/2017
SR503-4 Switching Relay102-37901/18/2017
SR503-EXP-4 Switching relay102-38701/18/2017
SR504-4 Switching Relay102-38101/18/2017
SR504-EXP-4 Switching Relay102-38901/18/2017
SR506-4 Switching Relay102-38312/10/13
SR506-EXP-4 Switching Relay102-36512/10/13
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