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3 Zone New Generation Switching Relay w/ Priority
TACO SR503-5 3 ZONE SWITCHING RELAY WITH PRIORITY
Hydronic Switching Relays
}
3 Zone New Generation Switching Relay w/ Priority
3617826
MFG #: SR503-5
Product ID:3617826
Famous Supply
- Series: SR500-5
- Type: 3 Zone Switching Relay
- Voltage Rating: 120
- Coil Voltage: 24
Taco® Switching Relays bring confidence to every job—built with advanced technology and the reliable performance professionals trust. Designed for fast, flexible installation and long-term reliability, they feature Bluetooth® app-based setup, advanced diagnostics, and smart thermostat compatibility. Taco Switching Relays help contractors work smarter and homeowners enjoy greater comfort and energy efficiency—all from the most trusted name in hydronic system control.
- Features
- Warranty
| Front Diagnostic Lights |
| Switchable Priority |
| Built-in Priority Protection |
| Simplified Wiring |
| Premium Sealed Relays |
| Compact Design |
| Fuse Protected |
| Isolated End Switch |
| Contractor-Friendly PC Board Layout |
| Universal Thermostat Compatibility |
| 24 Volt Power Output for hard-wired thermostats |
| Field Replaceable Transformer |
| 3 Year |