1-778-759-9864
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BCFurnace

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BCFURNACE

021-876

$96.00

+5% Tax • Shipping calculated at checkout.

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

Name

SWITCH SPDT 25AMP 277V PRESSURE

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

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

Product Details

Description

This high-capacity Air Pressure Switch is a critical safety and operational component designed for heavy-duty HVAC and commercial ventilation systems. Functioning as an air proving switch, it monitors pressure differentials to ensure proper airflow is maintained before allowing equipment to engage. Built for reliability, this Single Pole Double Throw (SPDT) switch acts as an essential interlock, preventing system operation during fan or blower failure. It is an ideal replacement part for industrial air handlers, rooftop units, and large-scale ventilation systems requiring high-voltage and high-amperage capacity. By ensuring consistent air monitoring, this switch helps maintain system efficiency and prevents equipment damage due to inadequate ventilation.

Specifications

Type
Air Pressure Switch / Air Proving Switch
Size
Compact
Application
Used in commercial HVAC systems, air handling units, industrial ventilation equipment, and rooftop heating/cooling units to verify airflow and manage system safety cycles.
Specifications
Configuration: SPDT (Single Pole Double Throw); Rating: 25 Amps at 277V; Function: Pressure-sensing air proving 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 021-876 a genuine OEM part?
Yes, the 021-876 is a genuine OEM replacement part manufactured by BCFurnace. We source all Air Pressure Switches from authorized distributors to ensure exact-fit compatibility. This Air Pressure 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 021-876 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (021-876) 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 Air Pressure 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 021-876 shipped?
Most Air Pressure Switches including the 021-876 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 021-876 at your store?
Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. Air Pressure Switches orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 021-876 is in stock before visiting.

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