Taco SR503-4
Taco SR503-4
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Taco Zone Switching Relay - Three Zones

Model:

SR503-4

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$182.60
In-Stock
Ships Monday, Nov 18th
Shipping to60601
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$31 / Month
Suggested monthly payments with 6 month financing.
Taco Zone Switching Relay - Three Zones
Taco Zone Switching Relay - Three Zones
Model: SR503-4
$182.60
Features
Specifications
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Product Q&A
How-To Articles
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Features

    Taco's SR503-4 is a three zone pump switching relay. With universal thermostat compatibility, it is designed to integrate quickly and effortlessly into any hydronic system, bringing Taco reliability to your zoned operations. The SR503-4's enclosure is unobtrusive and easy to mount in tight spaces, and the PC board was designed for quick maintenance and clean, simple wiring.
  • Simple Servicing
  • Easy-to-interpret external diagnostic lights and "ice cube" style replaceable relays mean that servicing a Taco switching relay is always easy.
  • Protected Priority Switching
  • With the SR503-4, a single zone may be designated as a priority zone whose heating demands are given precedence over other zones. Other demands will be met when the priority zone is satisfied or after sixty minutes of priority operation.
California residents see
Warning: This product can expose you to chemicals including Lead which is known to the State of California to cause Developmental Harm.
For more information go to: www.p65Warnings.ca.gov

Specifications

SR503-4
specs product image PID-33781
Overview
Product Category
Thermostats and Controls
UPC
687752857566
General Information
Product Category
Thermostats and Controls
Number of Zones Learn More
Number of Zones
A zone is a room or area within a building that has its own temperature control.
3
Electrical Data
Voltage
120 Volts
Phase
1
Frequency
60 Hz
Maximum Load
15 Amps
Dimensions
Product Height
7 Inches
Product Width
10 3/4 Inches
Product Depth
2 3/4 Inches
Shipping Weight
4 Pounds
Certifications
UL Listed
Yes
Warranty Information
Warranty Learn More
Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
3 Years

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Product Q&A

(1)
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Product Questions Answered by Ken, the eComfort Product Expert
Have a Lochinvar boiler with a DHS tank and one circulator pump feeding an air handler. Need to add another line with a 2nd circ pump. Will this SR504 work? That will give me 4 pumps then, the hot water, boiler, and the two circs. If this one won't work what would you suggest.
Robert 
from Alaska 
October 07, 2015

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Manuals

 
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Taco Zone Switching Relay - Three Zones
Taco SR503-4
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