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3 Zone Switching Relay

SKU:SR503-4

Brand: Taco

Taco
Qty Price
$124.95
/ each
$359.55 / box (3 units x $119.85)
In Stock! Ships in 24-48 Hours
(667 Available)
0

Resources

Specs

Zones:
?
3
Width (Inches): 10-1/4"
Height (Inches): 6.75
Depth (Inches): 2-3/4"
Application: Zoning
Power Method: 120 VAC Input
Voltage:
?
120 VAC

Description for Taco SR503-4

Taco SR503-EXP is a 3-Zone Expandable Switching Relay. Combines clearly labeled PC board layout with advanced features that allow for total system customization. Taco expandable switching relays allow to expand up to 20 zones, while built-in PowerPort slots allow to utilize the advanced features of the PowerPort Cards and Add-on Power Controls. External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups. Taco SR503-EXP expandable switching relay is UL and CSA listed, uses standard “ice cube” replaceable relay and is compatible with conventional and programmable thermostats.

Features:

  • External Indicator Lights
  • Switchable Priority
  • Simplified Wiring
  • Fully Enclosed Snap-Out Relays
  • Compact Design
  • Fuse Protected
  • 100% Factory Tested
  • Isolated End Switch
  • Contractor Friendly PC Board Layout
  • Universal Thermostat Compatibility
  • UL and CSA Approved
  • 24 Volt Power Input or Output Terminal
  • Extended 3 Year Warranty
  • Made in the USA
  • Plug-in PowerPort Card Slots
  • Add-on Power Control Plug
  • Expandable to 20 Zones
  • Interface with Expandable (-EXP) Taco Zone Valve Controls

3 Zone Switching Relay

REVIEW SNAPSHOT®

by PowerReviews
Taco3 Zone Switching Relay
 
5.0

(based on 9 reviews)

Ratings Distribution

  • 5 Stars

     

    (9)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

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      Best Uses

          • Was this a gift?:
          • No (4)

        Reviewed by 9 customers

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        Displaying reviews 1-9

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        5.0

        Ezzzz of installation

        By Dirt Mover

        from North Eastern Pennsylvania

        Verified Buyer

        Pros

          Cons

            Best Uses

              Comments about 3 Zone Switching Relay:

              Very easy to understand installation directions, works exactly as described, everything contained in 1 compact unit.

              • Was this a gift?:
              • No
               
              5.0

              Great Item

              By NOBAMA

              from Hopkinton MA

              Verified Buyer

              Pros

                Cons

                  Best Uses

                    Comments about 3 Zone Switching Relay:

                    Had to add 2 zones, The taco instructions were great. Just remember that if your adding onto a system that has a domestic HW priority already you will need a zone for that... Thats why I had to get a 3 zone controller. Pex Supply is the best company I have ever bought from, FREE SHIPPING NEXT DAY..Great prices, Nice!

                    • Was this a gift?:
                    • No

                    (0 of 1 customers found this review helpful)

                     
                    5.0

                    this switching relay was a breeze to ins

                    By handyman steve

                    from point pleasant,nj

                    Verified Buyer

                    Pros

                      Cons

                        Best Uses

                          Comments about 3 Zone Switching Relay:

                          this switching relay was a breeze to install. i replaced a pair of honeywell mechanical contacts and ended up putting in a third zone for a 4 loop radiant heat zone. great price, great products. taco makes top of the line equipment. pex supply has great prices and service, way better than going to a local supply house. they are doing the plumbing business right.

                          • Was this a gift?:
                          • No
                           
                          5.0

                          taco 3 zone switching relay

                          By JCM Constr.

                          from Bethany, Ct.

                          Verified Buyer

                          Pros

                            Cons

                              Best Uses

                                Comments about 3 Zone Switching Relay:

                                First time installing, easy to wire, straight forward and it works great. I like the lights that tell you what zone is running at a glance. I mounted mine away from the boiler on the chimney at eye level.

                                • Was this a gift?:
                                • No

                                (0 of 1 customers found this review helpful)

                                 
                                5.0

                                great product

                                By mike

                                from ILLINOIS

                                Verified Buyer

                                Comments about 3 Zone Switching Relay:

                                It came with instructions. Works great

                                 
                                5.0

                                very easy to work with

                                By abner

                                from edgewood iowa

                                Verified Buyer

                                Comments about 3 Zone Switching Relay:

                                used this for infloor system in a home and it worked great and made the job alot simpler to install thermostats boiler and pumps

                                 
                                5.0

                                Best way to go for zone circulators

                                By Perry

                                from Freehold NJ

                                Verified Buyer

                                Comments about 3 Zone Switching Relay:

                                If You are using zone circulators and a zone boilermate, this is the easiest set up. It will work flawlessly.

                                (0 of 1 customers found this review helpful)

                                 
                                5.0

                                looks great and easy to install

                                By john

                                from moosup, connecticut

                                Verified Buyer

                                Comments about 3 Zone Switching Relay:

                                This product performs great and did the job as expected replacing a similar product that got burned out

                                 
                                5.0

                                definitely the right product

                                By Doctor Demento

                                from Wallkill, NY

                                Verified Buyer

                                Comments about 3 Zone Switching Relay:

                                Used this to run multiple circulators on a cold start boiler. The right product for the job

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