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Taco - 3 Zone Switching Relay

Item: SR503
MFR: SR503-4

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About This Product

Product Info


Switching Relays combine clearly labeled PC board layouts with advanced features that allow for total system customization. Whether using basic priority switching or the advanced features of the -EXP controls, the job is made easy. External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups. All switching relays are UL and CSA listed, use standard "ice cube" replaceable relays and are compatible with conventional and programmable thermostats.
Warning: this product contains a chemical known to the State of California to cause cancer.


Weight3.9 Pounds (lbs)
Width10.25 Inches (In)
Height6.75 Inches (In)
Country of OriginUSA
Length2.75 Inches (In)
Prop 65Yes

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