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BCFurnace
3" HIGH LIMIT SWITCH L210-40F 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 L210-40F 3 High Limit Control Switches

BCFURNACE

543-210

CA$68.83

+5% Tax • Shipping calculated at checkout.

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

Name

3" HIGH LIMIT SWITCH L210-40F

3units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

Secure Payment
Fast Delivery
Local Pickup

Product Details

Description

The 3-inch High Limit Switch L210-40F is a vital safety component designed for residential forced-air furnaces and heating systems. This thermal limit control serves as a primary safety mechanism, monitoring the air temperature within the heat exchanger to prevent dangerous overheating. If the temperature exceeds the calibrated threshold of 210°F, the switch automatically breaks the electrical circuit to the burner or heating elements, protecting the unit from damage and ensuring home safety. Once the system cools by the designated 40°F differential, the switch automatically resets to restore normal operation. This high-quality replacement part is essential for resolving issues related to furnace short-cycling or thermal cut-out failures caused by restricted airflow or mechanical malfunctions.

Specifications

Type
High Limit Control Switch
Size
3-inch insertion depth
Dimensions
3 inches
Application
Used in gas and electric forced-air furnaces as a safety limit to monitor heat exchanger temperatures and prevent thermal overload.
Specifications
Open Temperature: 210°F; Close Temperature: 170°F (40°F Differential); Reset Type: Automatic; Configuration: Normally Closed (NC) SPST; Probe Length: 3 inches.

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Frequently Asked Questions

Is the 543-210 a genuine OEM part?
Yes, the 543-210 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 543-210 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (543-210) 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 543-210 shipped?
Most 3 Limit Switches including the 543-210 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 543-210 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 543-210 is in stock before visiting.

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