4 Zone Next Generation Switching Relay, Expandable

Taco Switching Relays combine clearly labeled PC board layouts with advanced features that allow for total system customization. Whether using basic functionality, DIP switch features or the advanced features of the Taco Control mobile app 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 and compatible with conventional, programmable, and WIFI based thermostats. Features: * Front Diagnostic Lights * Switchable Priority * Built-in Priority Protection * Simplified Wiring * Premium Sealed Relays * Compact Design * Fuse Protected * 100% Factory Tested * Isolated End Switch * Contractor Friendly PC Board Layout * Universal Thermostat Compatibility * 24 Volt Power Output * For hard wired thermostats * Field Replaceable Transformer * Extended 3 Year Warranty