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circuit-breaker

Siemens BQD240 - 40 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState

★★★★★
Part Number BQD240
Amperes 40
Poles 2
Voltage 480
Product Type circuit-breaker
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Manufacturer :Siemens
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $710.00
Sale price $710.00 Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
Icon
FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
Siemens BQD240 - 40 A 480 V 2-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Siemens BQD240 - 40 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Regular price $710.00
Sale price $710.00 Regular price
Unit price
Product description
Shipping

Meet the Siemens BQD240 — a 40 A, 480 V, 2-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Our bolt-on design cinches a secure, vibration-resistant bus connection, so you get consistent performance even in environments with vibration or movement. The thermal-magnetic trip unit delivers stable, repeatable protection across a range of loads and fault conditions, helping prevent nuisance trips while reliably interrupting fault currents when needed.

  • Bolt-on mounting ensures a rigid, vibration-resistant connection to the bus, reducing the chance of loose contacts and overheating over time.
  • Thermal-magnetic trip unit provides dependable overcurrent and short-circuit protection with predictable trip characteristics, maintaining system safety under varying conditions.
  • OEM compatibility Designed to be compatible with matching Siemens load centers and panelboards for easy replacement and uniform performance.
  • Versatile applications Suitable for residential, commercial, and light industrial installations requiring reliable 2-pole protection at 480 V.
  • Direct-fit protection Ideal for protecting branch circuits where space and mounting integrity matter, with straightforward installation into existing Siemens equipment.

The Siemens BQD240 is purpose-built for installations where durable, consistent protection matters most. Whether you’re expanding a panel in a small commercial space or upgrading a load center in a light industrial setting, this 2-pole breaker delivers the trusted performance synonymous with the Siemens name. Its bolt-on format simplifies service and future upgrades, helping technicians work quickly without compromising safety.

Technical details at a glance

  • Siemens
  • Part Number: BQD240
  • Type: Thermal-magnetic molded case circuit breaker
  • Amperage Rating: 40 A
  • Voltage Rating: 480 V
  • Number of Poles: 2
  • Mounting Style: Bolt-on
  • Application: Branch circuit overcurrent and short-circuit protection

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What Our Customers Say

4.9 (38 reviews)

General feedback we often hear from customers purchasing industrial electrical parts.

Verified

Solid quality component. Exactly as described on the product page.

Maintenance team · Ontario

Verified

Packaging was secure and the item arrived clean and ready for installation.

Electrical contractor · GTA

Verified

We’ve used this type on multiple jobs and it’s been reliable so far.

Panel shop · Canada/US

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