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BCFurnace
3" HIGH LIMIT SWITCH L150-30F 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 L150-30F 3 High Limit Control Switches

BCFURNACE

543-057

CA$52.96

+5% Tax • Shipping calculated at checkout.

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

Name

3" HIGH LIMIT SWITCH L150-30F

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

Secure Payment
Fast Delivery
Local Pickup

Product Details

Description

Ensure the safety and efficiency of your heating system with this premium 3-inch high limit switch. Designed as a vital thermal protection component for furnaces and HVAC equipment, this L150-30F limit control monitors internal temperatures to prevent overheating. The switch is engineered to automatically trip when the system reaches a 150-degree threshold, safely interrupting the circuit to prevent damage to the heat exchanger or other sensitive components. Once the temperature drops by 30 degrees, the switch resets to allow for normal operation. A malfunctioning limit switch is a common cause of furnace short-cycling or a total failure to heat; replacing it with this high-precision sensor helps maintain consistent indoor comfort and reliable appliance performance. This durable safety component is essential for residential and commercial forced-air heating systems.

Specifications

Type
High Limit Control Switch
Size
3-inch probe length
Dimensions
3 in
Application
Commonly used in forced-air furnaces, HVAC units, and heating systems as a safety cut-out to prevent thermal overload.
Specifications
Temperature Limit: 150°F; Temperature Differential: 30°F; Configuration: L150-30F; Reset Type: Automatic

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Frequently Asked Questions

Is the 543-057 a genuine OEM part?
Yes, the 543-057 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 543-057 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (543-057) 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 543-057 shipped?
Most 3 Limit Switches including the 543-057 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 543-057 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 543-057 is in stock before visiting.

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