1-778-759-9864
United States (USD $) flagUnited States (USD $)
BCFurnace
3" HIGH LIMIT SWITCH L120-30F 3 High Limit Control Switches furnace part available in Vancouver, Burnaby, Port Moody, Langley, North Vancouver, Richmond, Maple Ridge, Delta, West Vancouver, New Westminster, Surrey, Coquitlam, Port Coquitlam, Pitt Meadows

3" HIGH LIMIT SWITCH L120-30F 3 High Limit Control Switches

BCFURNACE

543-060

$163.00

+5% Tax • Shipping calculated at checkout.

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

Name

3" HIGH LIMIT SWITCH L120-30F

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

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Fast Delivery
Local Pickup

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

Product Details

Description

Ensure the safety and efficiency of your heating system with this 3-inch high limit switch. Designed as a critical thermal safety control for forced-air furnaces and HVAC equipment, this L120-30F switch monitors air temperature and automatically interrupts the electrical circuit if internal temperatures exceed safe operating limits. This prevents overheating and protects the heat exchanger from potential damage. A vital replacement part for residential and commercial heating repairs, it features a reliable automatic reset function and a 3-inch probe for accurate temperature sensing within the air stream. Maintaining a functional high limit sensor is essential for preventing fire hazards and ensuring your heating unit operates within manufacturer safety parameters.

Specifications

Type
HVAC High Limit Control Switch
Size
3-inch probe depth
Dimensions
3 inches
Application
Commonly used in gas furnaces, electric heaters, and air handling units as a safety cutout to prevent overheating.
Specifications
Trip Temperature: 120°F; Differential: 30°F; Reset Type: Automatic; Contact Configuration: Normally Closed (NC)

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 543-060 a genuine OEM part?
Yes, the 543-060 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 543-060 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (543-060) 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 543-060 shipped?
Most 3 Limit Switches including the 543-060 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 543-060 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 543-060 is in stock before visiting.

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