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Electric Heating Relay (w/o Transformer)

SKU:
RC840
Rating:
(12)
Q&A:
(1)
Electric Heating Relay (w/o Transformer)
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$65.26 each
In Stock
In Stock
Get 20 Tue, Jun 16
Order by today, receive Tuesday
Free Shipping On orders over $99
Easy Returns No restocking fee for 90 days

Description

Overview

This easy-to-install relay features instant activation and is compatible with 2-and 3-wire 24V thermostats.

Features
  • Direct replacement for any brand name relay
  • Compatible with 24V thermostats with 2-wire connections (R,W) or 3-wire connections (R,W,C)
  • Immediate relay activation provides improved temperature control and comfort
  • Epoxy-soundproofed relay ensures quiet operation
  • Terminal board connection enables easy installation
  • Low current consumption means multiple relays can be controllers by a single thermostat

Compatible with Aube Thermostats:
  • TH114-A-024T
  • TH115-A-024T
  • TH135-01
  • TH140-28-01
  • TH150 Series

Specs

Input Voltage:

120 VAC, 208 VAC, 240 VAC, 277 VAC, 347 VAC

Temperature Rating:

-4°F to 140°F

Storage Temperature:

-40°F to 175°F

Operating Humidity:

0% to 95% (non-condensing)

Frequency:

60 Hz

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Product Reviews

4.92 out of 12 reviews
100% would recommend this product
4.92
out of 12 Reviews
100% would recommend this product
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5 star
92%
4 star
8%
3 star
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Showing 1-10 of 12 reviews

Just what I needed

This worked perfect for my Google nest thermostat 1st generation. I have line voltage with only two wires from the boiler. You will still need a seperate transformer.
Dan
NY
2 years ago
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The thing that i needed.

Installation was very straight-forward. I used three of these relays, powered by an external transformer to control some high-powered cove heaters. It's all triggered by a Google Nest thermostat. My client is very happy and the system works flawlessly. Supply House is The go-to vendor for time critical items. Came to my door quickly and in pristine condition. I'm very pleased with their service.
Clem
Star Valley, Wyoming
3 years ago
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For use with a 24 volt transformer

This relay was used in conjunction with a similar relay that has a 24 volt transformer. It made wiring 240 volt baseboard heaters to a low voltage thermostat simple. Just follow the wiring diagrams.
Reba
Ohio
3 years ago
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Worked exactly as I hoped it would.

Full voltage thermostats are inherently inconsistent for controlling heaters. I needed to get better control of the baseboard heater circuits in my home so I used these relays with a low voltage electronic thermostat and now the temperature in my home remains at setpoint. These relays were an integral part of my design and work great.
Bob
Central Minnesota
3 years ago
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yes

works great made easy work of putting multiple line voltage heaters on one thermostat
terry
moses lake wa.
4 years ago
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Excellent! allowed much better control of my baseboard heat.

I am using several of these relays in my house to control oil filled electric baseboard heaters with Nest thermostat. I have 3 different zones (lower family room, upper living room, master bedroom) that I'm controlling with 3 separate Nest t-stats. Each Nest controls an RC840T-240 (relay with built in transformer to power the Nest) and one or more RC840 relays. I even split up my heaters in each zone to run on different stages of heat. For example, in my family room, I have 2 heaters operating on stage 1 and all 3 heaters operating on stage 2. The pictures show the relays controlling my family room heat, running on stage 1. They work great, and I am very glad I decided to use them. I have much better control of my heating now.
John F
Willow Grove, PA
4 years ago
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I would buy this product again. I would recommend it to othe

Baseboard heat controled by digital 24v thermostat. Hope it helps limit the Electric bill. The diagram did not show use of this product with the relay with the built in 24v transformer. But I got it to work
Buck
North central Wisconsin
5 years ago
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I would buy again

Replaced an antique Honeywell bi-metal 220v low voltage electric heat switch with 2 of these. It cleaned up a wiring mess and now no delay for heat. Taped a stand alone xfmr for the power.
Pogo
Syracuse, NY
7 years ago
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Great Relay

Great for using 24V to control 120/240 Loads using a J Box.
JonB9
Petaluma, CA
8 years ago
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aube with nest

Works perfect!
ap
new york
9 years ago
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Product Q&A

1 Question
1 Question
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Q: Can I use this product to control power via a thermostat to a fan in my garage?

Asked by Nick 2 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

Hi Nick, thanks for writing in. Yes, this relay is compatible with the following thermostats: TH114-A-024T, TH115-A-024T, TH135-01, TH140-28-01, and TH150 Series.

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