Taco 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 listed, are compatible with conventional and programmable thermostats.
Mid-City Product ID: 49048
Manufacturer: Taco
Manufacturer Part Number: SR502-4
UPC: 687752857559
Applicable Standard: UL
Application: For air conditioning systems, closed cooling circuits, hot water heating systems, hydronic heating and cooling, solar/geothermal and water/glycol concentrations up to 50%
Brand: Taco
Current Rating: 15 Amp
Input Supply Rating: 120 Volt AC 60 Hertz 1-Phase
Item: Switching Relay
Overall Dimensions: 10-1/4 Inch Width x 2-3/4 Inch Depth x 7 Inch Height
Overall Length: 2-3/4 in
Overall Width: 10-1/4 in
Product Features: External Indicator Lights; Switchable Priority; Simplified Wiring; Compact Design; Fuse Protected; 100% Factory Tested; Isolated End Switch; Contractor Friendly PC Board Layout; Universal Thermostat Compatibility; 24 Volt Power Input or Output Terminal; Made in USA
Standards/Approvals: UL Listed
Suitable For Use With: 2, 3 and 4-Wire Zone Valves
Temperature Rating: 75 Deg C
Type: 2-Zone with Priority
UNSPSC: 40101800
Voltage Rating: 120 VAC
Warranty: 3 year Limited
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