The SR504-4 from Taco is a 4-Zone Switching Relay w/ Priority. It combines clearly labeled PC board layout with advanced features that allow for total system customization. External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups. Taco SR504 switching relay is UL/CSA listed, uses standard “ice cube” replaceable relay and is compatible with conventional and programmable thermostats.

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;
• 24 Volt Power Input or Output Terminal;
• Made in the USA.

Technical Specifications:

• Zones: 4;
• Power: 120VAC;
• Max combined load: 20.0 AMPs;
• Dimensions: 10.25" wide x 6.75" high x 2.75" deep.

Warranty:

• Extended 3 Year Warranty;