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circuit-breaker

Schneider Electric M9F21105 5A 1P 277V Circuit Breaker | AmpState

Part Number M9F21105
Amperes 5
Poles 1
Voltage 277
Product Type circuit-breaker
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Manufacturer :Schneider Electric
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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
Schneider Electric M9F21105 5A 1P 277V Circuit Breaker | AmpState

Schneider Electric M9F21105 5A 1P 277V Circuit Breaker | AmpState

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

Introducing the Schneider Electric M9F21105 5A 1P 277V circuit breaker — a precise, reliable solution for protecting branch circuits in panelboards, load centers, and electrical distribution networks.

Designed for professionals who can't compromise on compatibility, this unit is a direct part-number match for streamlined maintenance, panel build-outs, and spare inventories. AmpState offers the M9F21105 to ensure you can source the exact device when you need it, reducing mis-orders and downtime.

Key specifications

  • Manufacturer: Schneider Electric
  • Part Number: M9F21105
  • Type: Circuit Breaker, 1 Pole
  • Rated Current: 5 A
  • Rated Voltage: 277 V
  • Applications: Panelboards, load centers, electrical distribution
  • Availability: AmpState

Why choose the M9F21105

  • Direct part-number match saves time and reduces stocking errors in maintenance and panel fabrication projects.
  • 277V rating expands its suitability for commercial and industrial circuits, particularly lighting and distribution panels that operate at higher line voltages.
  • 1-pole design provides targeted protection for individual circuits, enabling precise control and safe shutdown on overloads or faults.
  • Schneider Electric's established reliability and compatibility with a wide range of Schneider-compatible panel systems.
  • A ready-to-ship option from AmpState supports quick replacements and consistent inventory management.

Ideal use cases

  • Replacing a failed or worn 5 A 277V breaker in panelboards or load centers.
  • Stocking spares for service vans and maintenance crews to cut field downtime.
  • Specifying exact-fit components during panel renovations or upgrades where a direct PN match matters.
  • Installing in 277V branch circuits controlling lighting or small equipment in commercial settings.

Need help confirming fit or compatibility with your panel model? Send us a message — we’ll help verify that M9F21105 matches your application and share quick tips to ensure a seamless replacement.

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