SR503-EXP-1 Taco 3 Zone Switching Relay With Priority & 3 Ports
Part #TACSR503EXP1
MFG #SR503-EXP-1
Manufacturer Name : Taco
- Switching Relay
- Item Switching Relay
- Type Compact, Sealed, Zone, Expandable
- Applicable Standard UL, CSA
- Switch Type DPDT
- Overall Dimensions 10-1/4" Width x 2-3/4" Depth x 6-3/4" Height
- Current Rating 20 Amp
- Input Supply Rating 120 Volt AC
- Inclusions/Features Front Diagnostic Light, Isolated End Switch, Field Replaceable Transformer, Power Control Plug
- Application Boiler
- Number of Zone 3
- Warranty 3 Year
- Install Instructions
- Taco Switching Relay Combine Clearly-Labeled Pc Board Layout with Advanced Features that Allow to Completely Customize System; Whether Using Basic Priority Switching, Taco Plug-In Power Port Cards/Add-On Power Control, Tailoring the System has Never Been Easier; External Indicator Lights Give Instant Diagnostic Feedback, Making Service Calls/New Installation Start-Ups a Snap; Use Standard "Ice Cube" Replaceable Relay and are Compatible with Conventional and Programmable Thermostat; Switchable Priority; Built-In Priority Protection; Simplified Wiring; Fuse Protected; 100 Percent Factory Tested; Contractor Friendly Pc Board Layout; Universal Thermostat Compatibility; Built-In; Switchable Primary Circulator Output; Two Boiler Contact, Utilizes Full Functionality of Mod-Con Boiler; Interface with -Exp Zone Valve Control; Expandable to 20 Zoning Panel; Interface with -Exp Zone Valve Control; Extended 3 Year Warranty
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