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$198.08 each
Out of Stock
Get it Tue, Jun 23 - Tue, Jun 30
MANUALS (3)
This item replaces: SR502-2, SR502
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Free Shipping This item ships free
Easy Returns No restocking fee for 90 days
Product Highlights
–
2
10-1/4" Width
6.75" Height
2-3/4" Depth
Description
–
The Taco SR502-4 Switching Relay is the best choice for all your zoning needs, with advanced PowerPort Cards, external diagnostic lights, switchable priority and contractor friendly PC board layouts. Combined with the time proven reliability of the 00 family of circulators and thermostats, total system integrating is achieved. External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups.
- 24-Volt power input or output terminal
- Fuse protected
- Simplified wiring
- Compact design
Specs
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| Application: | Zoning |
|---|---|
| Number of Zones: | 2 |
| Width (Inches): | 10-1/4" |
| Height (Inches): | 6.75" |
| Depth (Inches): | 2-3/4" |
Questions?
Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
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Taco
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Product Reviews
4.7 out of 33 reviews
94% would recommend this product
5 star
79%
4 star
18%
3 star
0%
2 star
0%
1 star
3%
Customer Images
Most Liked Positive Review
Excellent Control
Used this relay with priority going to an indirect water heater on a 2 zone system. Works flawlessly and very easy to wire neatly. I like the new cover design, makes for a professional looking installation.
VS
Most Liked Negative Review
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I would NOT buy this again.
This is the second one I got and the PLASTIC tabs that hold the board to the sheet metal were all broke off. Both times in the middle of nowhere trying to fix this . Takes to much time. Use the Argo board much better quality. Did not expect this from Taco.
Showing 1-10 of 33 reviews
Perfect replacement
Power surge the transformer on the old unit. This newer version took less than an hour to replace.
DYI Guy
IL
7 months ago
Verified Buyer
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Yes
Powers 2 circulators on floor heat.
Bill
Crumpton, MD
1 years ago
Verified Buyer
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Great job Supply House!
Easy to get, easy to install. works great
JK
Small town USA
2 years ago
Verified Buyer
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Zoning as it should!
Easy install and highly effective!
HHvac Indoor Technologies
Westchester NY
2 years ago
Verified Buyer
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I would NOT buy this again.
This is the second one I got and the PLASTIC tabs that hold the board to the sheet metal were all broke off. Both times in the middle of nowhere trying to fix this . Takes to much time. Use the Argo board much better quality. Did not expect this from Taco.
John
Grundy Co. IL
4 years ago
Verified Buyer
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Perfect for my setup
Easy to install and no issues!
Devin
Saratoga Springs NY
5 years ago
Verified Buyer
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Delivered very fast
Great product
Jrjr
Pa
5 years ago
Verified Buyer
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Great price, quick ship, Taco relays are reliable and easy t
I have installed several Taco Relays, For the regular setup, installation is easy to do and the units are reliable. It's nice have the red lights so I can see which zones are operating at a glance. Excellent upgrade if your old Honeywell is starting to go.Supplyhouse.com is my go to supplier, they're the best.
B21
New Hampshire
5 years ago
Verified Buyer
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Yes of course... it is perfect for my need... working well..
This switching relay is doing exactly as we need. And from YOU... second time I have used you and your amazing team.... THE BEST, I recommend Supply House.com... to all my friends. Thank you for your amazing service and products. Hope M.
Hope M.
Virginia, US
6 years ago
Verified Buyer
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Great solution for my water heater based closed circuit
the 2-zone switching relay worked great to be able to control 2 hot water pumps for a closed circuit hot water heating system based on a a water heater with a heat exchanger in between.
The installation instructions are not the greatest, so be ready to do some research online for installation when you are using 1 thermostat to control 2 pumps.
Self Thought Home Improver
Rochester Hills, MI
6 years ago
Verified Buyer
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Product Q&A
1 Question1 Question
Q: Can this be used with a tankless hot water heater?
Asked by 6thgreen 12 years ago
Add your answer
Verified Reply- Supplyhouse Staffif the control voltage is 24 volt, it will work fine.
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