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MEO Taco SR503 EXP 3 Zone Switching Relay For Circulators W/Priority & 3 Powerports P7569925MEO-64782 https://cdnimages.opentip.com/full/MEO/MEO-64782.jpg Taco SR503 EXP 3 Zone Switching Relay For Circulators W/Priority & 3 Powerports Manufacturer Part Number: SR503-EXPPart Description: TACSR503-EXP 3 ZONE SWITCHING RELAY FOR CIRCULATORS W/PRIORITY & 3 POWERPORTS 7569925 687752201055 8.4000lbs 0.00 0.00 0.00
Taco
184.3400 2025-07-14 Only 1 left In Stock
customer review - by , October 10, 2022
5/ 5stars
Home heating system
customer review - by , July 7, 2022
5/ 5stars
But it works so far!
customer review - by , April 4, 2022
4/ 5stars
This was a replacement for an existing zone switching relay that failed. It was easy to install and works exactly as expected. The only thing I didn't like and the reason for 4 stars and not 5 is the LED indicator for the zones is hard to read - can't really tell which zone is activated. This will not impact the operation and may not be an issue for anyone but me.
customer review - by , December 12, 2020
5/ 5stars
Wish there was a little more room at the bottom for wires but it all worked out fine
customer review - by , September 9, 2020
5/ 5stars
Modernizing my furnace this fall was easy- thanks to this. This box replaced a bunch of older separate components and made wiring simpler and future troubleshooting much easier. I removed one zone and am only currently running two, but I plan to expand to add a zone for a garage heater and pool heater- so this was a no-brainer since it cost just barely more than a two-zone version. It was nice to throw away those old, bulky controllers and the external transformer. What wasn't really apparent was how to get this to cooperate with zone valves, but I removed those and rely solely on circulator pumps now. The switched output is 110V for the pumps, but wiring my zone valves in-line with the t-stat like my original Honeywell system worked did not function with this unit.
customer review - by , January 1, 2020
5/ 5stars
I had two separate relays and needed three as one relay was controlling two items. My hot water tank was always on in the winter months and I was almost getting steam out of the faucet. Problem solved with Taco 3 Zone Switching Relay.
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Taco SR503-EXP 3 Zone Switching Relay For Circulators W/Priority & 3 Powerports, Price/each

stars Rating 5 | 6 reviews
Brand Taco
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UPC: 687752201055
SKU: MEO-64782
Price: $184.34
Quantity:
Only 1 left In Stock
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Product Description

Price is for each.

Manufacturer Part Number: SR503-EXP

Part Description:
TACSR503-EXP 3 ZONE SWITCHING RELAY FOR CIRCULATORS W/PRIORITY & 3 POWERPORTS

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

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This product is not eligible for coupon code discount, for we've been offering the best price in the market.
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Customer Reviews
5 out of 5
see all 6 reviews
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By A Customer
Date: October 30, 2022
Home heating system
Rating: 5 stars [5 of 5 Stars!]
By Carl S.
Date: July 22, 2022
But it works so far!
Rating: 5 stars [5 of 5 Stars!]
By Brian
Date: April 22, 2022
This was a replacement for an existing zone switching relay that failed. It was easy to install and works exactly as expected. The only thing I didn't like and the reason for 4 stars and not 5 is the LED indicator for the zones is hard to read - can't really tell which zone is activated. This will not impact the operation and may not be an issue for anyone but me.
Rating: 4 stars [4 of 5 Stars!]
By KE
Date: December 21, 2020
Wish there was a little more room at the bottom for wires but it all worked out fine
Rating: 5 stars [5 of 5 Stars!]
By Kindle Customer Duke
Date: September 23, 2020
Modernizing my furnace this fall was easy- thanks to this. This box replaced a bunch of older separate components and made wiring simpler and future troubleshooting much easier. I removed one zone and am only currently running two, but I plan to expand to add a zone for a garage heater and pool heater- so this was a no-brainer since it cost just barely more than a two-zone version. It was nice to throw away those old, bulky controllers and the external transformer. What wasn't really apparent was how to get this to cooperate with zone valves, but I removed those and rely solely on circulator pumps now. The switched output is 110V for the pumps, but wiring my zone valves in-line with the t-stat like my original Honeywell system worked did not function with this unit.
Rating: 5 stars [5 of 5 Stars!]
By Gaberoo
Date: January 18, 2020
I had two separate relays and needed three as one relay was controlling two items. My hot water tank was always on in the winter months and I was almost getting steam out of the faucet. Problem solved with Taco 3 Zone Switching Relay.
Rating: 5 stars [5 of 5 Stars!]
Items 1 - 6 of 6 reviews
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