1-778-759-9864
United States (USD $) flagUnited States (USD $)
BCFurnace

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BCFURNACE

543-063

$41.00

+5% Tax • Shipping calculated at checkout.

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

Name

26L61

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

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Local Pickup

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

Product Details

Description

This premium high limit control switch is a critical safety component designed for forced-air heating systems and furnaces. Engineered to prevent equipment overheating, this thermal limit switch automatically interrupts the heating cycle if temperatures exceed safe operating parameters. Featuring a 150-degree Fahrenheit trip point and a 30-degree differential, it ensures your HVAC system remains within a secure thermal range, protecting the heat exchanger from potential damage. Whether you are performing routine HVAC maintenance or troubleshooting a furnace that is short-cycling, this high-quality limit sensor provides reliable temperature monitoring and peace of mind for residential or commercial heating applications.

Specifications

Type
High Limit Control Switch
Size
3-inch probe length
Dimensions
3 in
Application
Used primarily as a safety cutout in gas and oil-fired furnaces, residential heating systems, and air handlers to monitor internal heat exchanger temperatures.
Specifications
Temperature Rating: Opens at 150°F (L150); Closes at 120°F (30°F differential); Probe Length: 3 inches; Configuration: Normally Closed (NC) SPST switch.

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–9PM PST · Or email parts@bcfurnace.com

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Frequently Asked Questions

Is the 543-063 a genuine OEM part?
Yes, the 543-063 is a genuine OEM replacement part manufactured by BCFurnace. We source all 3 Limit Switches from authorized distributors to ensure exact-fit compatibility. This 3 Limit Switches 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 543-063 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (543-063) with your furnace model number. Visit the BCFurnace page on our site and enter your model number in the search bar — our system will show all compatible 3 Limit Switches 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 543-063 shipped?
Most 3 Limit Switches including the 543-063 ship within 1–2 business days from our warehouse. We ship across Canada and the United States with tracking on every order. For urgent BCFurnace repairs, contact us at 1-778-759-9864 for expedited shipping options.
Can I pick up the 543-063 at your store?
Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. 3 Limit Switches orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 543-063 is in stock before visiting.

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