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BCFurnace
3" HIGH LIMIT SWITCH L145-30F 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 L145-30F 3 High Limit Control Switches

BCFURNACE

543-145

CA$195.57

+5% Tax • Shipping calculated at checkout.

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

Name

3" HIGH LIMIT SWITCH L145-30F

5units 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" High Limit Switch L145-30F is a critical safety component engineered for HVAC systems and residential furnaces. This thermal limit control acts as a vital safeguard by monitoring the internal temperature of the heat exchanger to prevent overheating and potential equipment damage. Designed to open at a fixed temperature of 145°F, the switch interrupts the heating cycle if temperatures exceed safe operating limits and automatically resets once the temperature drops by 30°F. Reliable and durable, this high-limit sensor is a common replacement part for heating systems experiencing frequent cycling or safety shut-offs, ensuring your furnace operates safely and efficiently throughout the heating season.

Specifications

Type
High Limit Control Switch
Size
3-inch insertion depth
Dimensions
3 inches (probe depth)
Application
Used in forced-air furnaces, HVAC units, and heating systems to monitor air temperature and provide over-temperature protection.
Specifications
Open Temperature: 145°F; Close/Reset Differential: 30°F; Switch Logic: Normally Closed (Opens on Temperature Rise); Probe Length: 3 inches.

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Frequently Asked Questions

Is the 543-145 a genuine OEM part?
Yes, the 543-145 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 543-145 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (543-145) 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 543-145 shipped?
Most 3 Limit Switches including the 543-145 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 543-145 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 543-145 is in stock before visiting.

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