Note: This is a direct replacement for the older SR504.Taco SR504-5 Next Generation Switching Relay combines a clearly labeled PC board layout with advanced features for total system customization. Whether using basic functionality, DIP switch features, or the advanced Taco Control mobile app, setup and operation are simple. External indicator lights provide instant diagnostic feedback, making service calls or new installation start-ups easy. All switching relays are UL listed and compatible with conventional, programmable, and WiFi-based thermostats.
Features:
External Indicator Lights for easy status monitoring
Switchable Priority for DHW or priority zone control
Simplified Wiring with clearly labeled terminals
Fully Enclosed Snap-Out Relays for easy replacement
Compact Design to fit in tight panel spaces
Fuse Protected for added system safety
100% Factory Tested for reliability and quality assurance
Contractor Friendly PC Board Layout for quick installation
Universal Thermostat Compatibility with 24V systems
UL and CSA Approved for safety compliance
24 Volt Power Input or Output Terminal for flexible wiring
Bluetooth App-Enabled for wireless configuration and updates
Programmable Relay Outputs to customize system functions
Supports Modbus Communication for integration with building automation
Technical Specifications:
Zones: 4
Power: 120VAC
Max combined load: 20.0 AMPs
Dimensions: 12-1/2" wide x 8-1/2" high x 2-5/8" deep.
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