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Home
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Relays Switching
> 3-Zone with Priority Switching Relay 120 VAC 20 Amp
3-Zone with Priority Switching Relay 120 VAC 20 Amp
Item #:SR503-EXP-4
Manufacturer Item: SR503-EXP-4
Manufacturer:
TACO INC.
Taco SR503-ExP-4 3-Zone with Priority Switching Relay 120 VAC 20 Amp
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.
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- Front external indicator lights
- Ideal for retrofitting
- Primary circulator output
- Simplified wiring
- Sealed relays
- Fuse protected
- Compact design
- 100% factory tested
- Two isolated end switches
- Contractor friendly PC board layout
- Universal thermostat compatibility
- All circulator relay connections, including ZC/ZR, are rated 1/3 HP (6 amp full load, 36 amp locked rotor) at 120 VAC
- End switch connections are rated 24 VAC, 1 amp
- All thermostat connections supply a 24 VAC class 2 output
- Plug-in power controls
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Taco SR503-EXP-4
Relays Switching
Brand Name
Taco
Part Type
3-Zone Boiler Control
Coil Voltage
120
3-Zone with Priority Switching Relay 120 VAC 20 Amp
Quantity: