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Furnace Parts DIY
Honeywell electrical-transformers-relay 446-157 furnace replacement part

Furnace Parts DIY

446-157 HONEYWELL RELAY CENTRE 120V DPST 24V RELAY BOILER

$288.00

+5% Tax • Shipping calculated at checkout.

U.S. Duties/Taxes, if applicable, may be due at time of delivery.

Low stock — only 2 left

Pickup available at 75 Blue Mountain St #3, Coquitlam

Usually ready in 24 hours

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Not sure this fits your furnace? Call us — we're happy to help

Product Details

Description

This Honeywell Relay Center serves as a vital switching hub for boiler and hydronic heating systems. Designed to bridge the gap between low-voltage thermostat controls and high-voltage HVAC components, this relay allows a 24V signal to safely and efficiently operate 120V equipment such as circulator pumps and burner motors. Featuring a Double Pole Single Throw (DPST) configuration, it provides reliable electrical switching for residential and light commercial heating applications. If your boiler is failing to trigger the pump or the burner isn't responding to your thermostat's call for heat, replacing the relay center can restore proper system communication and home comfort. Built for durability and long-term performance, this transformer relay center is a standard component for modernizing or repairing hydronic heating controls.

Specifications

Type
HVAC Relay Center / Transformer Relay
Size
Medium
Application
Used in hydronic heating systems, boilers, and HVAC installations to control line-voltage circulator pumps and burners from a low-voltage thermostat signal.
Specifications
Primary Voltage: 120V AC; Control Voltage: 24V AC; Switch Type: DPST (Double Pole Single Throw); Frequency: 50/60 Hz; Integrated transformer included

Not sure this is the right part?

Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.

1-778-759-9864

Mon–Sat 8AM–5PM PT · Or email parts@bcfurnace.com

Common questions

Who makes the 446-157 HONEYWELL RELAY CENTRE 120V DPST 24V RELAY BOILER?

The 446-157 is made by Honeywell. It replaces the original part in compatible furnaces; check your model number to confirm the fit. This electrical-transformers-relay is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.

How do I know if the 446-157 is compatible with my furnace?

The easiest way is to match the part number (446-157) with your furnace model number. Visit the homepage and enter your model number in the search bar — our system will show all compatible electrical-transformers-relay for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.

How fast can I get the 446-157 shipped?

Most electrical-transformers-relay including the 446-157 ship within 1–2 business days from our warehouse. We ship across Canada and the United States, and worldwide, with tracking on every order. For urgent furnace repairs, contact us at 1-778-759-9864 for expedited shipping options.

Can I pick up the 446-157 at your store?

Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. electrical-transformers-relay orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 446-157 is in stock before visiting.

Still not sure this is the right part? Call 1-778-759-9864 and we will check your model number with you.