Taco 1 Zone Switching Relay, High Current Capacity

The SR501-HC-4 is the high current version of Taco's SR501-4 single zone pump switching relay. With universal thermostat compatibility, it is designed to integrate quickly and effortlessly into any larger hydronic system, bringing Taco reliability to your zoned operations. The SR501-HC-4's enclosure is unobtrusive and easy to mount in tight spaces, and the PC board was designed for quick maintenance and clean, simple wiring. High Current Switching Capacity Capable of Controlling: 1 Circulator (120 VAC) with Boiler Enable or 2 Circulators (120 VAC) without Boiler Enable or 1 Circulator (240 VAC) Features: External Indicator Lights Switchable Priority Simplified Wiring Fully Enclosed Snap-Out Relays Compact Design Fuse Protected 100% Factory Tested Isolated End Switch Contractor Friendly PC Board Layout Universal Thermostat Compatibility UL and CSA Approved 120 Volt Power Input or Output Terminal Extended 3 Year Warranty Made in the USA