Taco SR504-5 Next Gen 4 Zone Switching Relay w/ Priority Protection, Expandable

Description:
Taco Switching Relays are designed to make hydronic heating system control easier with a clearly labeled PC board layout and flexible customization options. Users can operate the relay with basic functions, DIP switch settings, or advanced features through the Taco Control mobile app. External diagnostic lights provide instant system response, helping simplify service calls and startup checks. These switching relays also feature switchable priority, built-in priority protection, simplified wiring, premium sealed relays, fuse protection, and a compact design. They are UL listed, 100% factory tested, compatible with conventional, programmable, and WiFi thermostats, and backed by an extended 3-year warranty.

Spec Sheet:

Amperage: 20

Width: 12-1/2\"

Height: 8-1/2\"

Diagnostic Lights: Front diagnostic indicator lights

Priority Features: Switchable priority with built-in priority protection

Wiring: Simplified wiring with contractor-friendly PC board layout

Relay Design: Premium sealed relays

Protection: Fuse protected

Compatibility: Universal thermostat compatibility, including conventional, programmable, and WiFi thermostats

Power Output: 24V power output for hard-wired thermostats

Transformer: Field-replaceable transformer

Design: Compact design

Testing & Certification: UL listed and 100% factory tested

Warranty: Extended 3-year warranty