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circuit-breaker

Square D FA34090 90A 3P 480V Circuit Breaker | AmpState

★★★★★
Part Number FA34090
Amperes 90
Poles 3
Voltage 480
Product Type circuit-breaker
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Manufacturer :Square D
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $10.00
Sale price $10.00 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
Square D FA34090 90A 3P 480V Circuit Breaker | AmpState - Circuit Breakers

Square D FA34090 90A 3P 480V Circuit Breaker | AmpState

Regular price $10.00
Sale price $10.00 Regular price
Unit price
Product description
Shipping

Meet the Square D FA34090—a dependable 90 A, 3-pole circuit breaker built for everyday electrical work. Designed for use in panelboards, load centers, and broader electrical distribution applications, it delivers reliable protection for 3-phase systems at 480 V. This part is ideal for replacement projects and stocking spares when you need to keep the bill of materials (BOM) aligned with the original part number.

Key specifications

  • Manufacturer: Square D
  • Part Number: FA34090
  • Product Type: Circuit Breaker
  • Amperage: 90 A
  • Poles: 3
  • Voltage: 480 V
  • Application: Protects circuits in panelboards, load centers, and electrical distribution
  • Availability: Available from AmpState

Why this FA34090 stands out

  • OEM alignment for seamless replacements: With the original FA34090 part number, you’re matching Square D specifications exactly, minimizing retrofit risks and installation surprises.
  • Reliable 3-phase protection: Designed to handle 480 V three-phase systems, helping keep critical equipment and workflows online.
  • Smart spare strategy: Stock this 90 A breaker to reduce downtime during outages or panel swaps, and preserve your BOM integrity for future maintenance.
  • Versatile compatibility: Perfect for standard electrical distribution setups where Square D protection is preferred in panelboards and load centers.

Who benefits most

  • Electrical contractors performing panel replacements or upgrades
  • Maintenance teams managing site reliability for industrial and commercial facilities
  • Electrical distributors seeking genuine, traceable BOM-aligned spares
  • Facility managers needing dependable, long-term availability of critical protection devices

Practical applications and use cases

  • Replacing a failed 90 A, 3-pole breaker in a 480 V three-phase distribution system
  • Maintaining BOM accuracy during panelboard modernization or retrofits
  • Stocking a ready-to-install spare to minimize downtime in service calls
  • Ensuring consistent protection in electrical distribution networks without compromising original equipment compatibility

Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit for your exact panel or distribution setup.

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

Exactly what we needed for a shutdown replacement. No surprises.

Plant · Shutdown

Verified

Good communication and clear updates while the order was processed.

Project · Coordination

Verified

Looks and feels like a proper industrial-grade part. Works as expected.

Service · Field install

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