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circuit-breaker

Siemens BQ3B090 90A 3P 240V Circuit Breaker, Bolt-On | AmpState

Part Number BQ3B090
Amperes 90
Poles 3
Voltage 240
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 $657.00
Sale price $657.00 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 BQ3B090 90A 3P 240V Circuit Breaker, Bolt-On | AmpState

Regular price $657.00
Sale price $657.00 Regular price
Unit price
Product description
Shipping

Siemens BQ3B090 is your reliable 90A, 3-pole circuit breaker designed for robust protection in panelboards, load centers, and electrical distribution networks. This bolt-on model combines secure mounting with straightforward field replacement, helping keep critical power systems running with minimal downtime.

Key specifications

  • Manufacturer: Siemens
  • Part Number: BQ3B090
  • Type: Circuit Breaker
  • Amperage: 90 A
  • Poles: 3
  • Voltage: 240 V
  • Mounting: Bolt-On
  • Availability: AmpState

Ideal use scenarios

  • New installations in panelboards and distribution panels that require a 3-phase, 240V protection solution.
  • Replacement applications where a direct part-number match ensures compatibility and reduces installation guesswork.
  • Spare inventory for maintenance teams and panel builders who prioritize fast, predictable parts availability.

What makes this breaker stand out

  • Direct part-number match minimizes downtime and ensures the correct fit in Siemens-based systems.
  • Bolt-On mounting provides secure, vibration-resistant installation and simplifies field service.
  • Three-pole configuration is ideal for protecting three-phase electrical distributions, helping to maintain balanced loads and safer operation.

Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.

Contact sales@ampstate.com

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What Our Customers Say

4.9 (38 reviews)

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

Verified

Matched our existing hardware and fit as expected. Clean install.

Maintenance · Retrofit work

Verified

Quick confirmation on details and a smooth ordering process.

Purchasing · Fast turnaround

Verified

Came well packed. Labeling made receiving and staging easy.

Warehouse · Receiving

Fast industrial sourcing support

Need help?

  • Request a quote
  • Need a BOM priced for your project
  • Not sure which part is correct
  • Need an equivalent or replacement
  • Send your part list and get a fast reply

Email us at sales@ampstate.com for pricing, availability, alternates, and project support.

Email for a quote Typical reply: same business day