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circuit-breaker

Siemens CFD63B125 - 125 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

★★★★★
Part Number CFD63B125
Amperes 125
Poles 3
Voltage 600
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 CFD63B125 - 125 A 600 V 3-Pole Bolt-On Circuit Breaker | AmpState - Circuit Breakers

Siemens CFD63B125 - 125 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

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

Meet the Siemens CFD63B125—a dependable, 3-pole bolt-on molded case circuit breaker designed to protect your electrical system with precision in panelboards and loadcenters. With a 125 A rating and a 600 V capability, this device handles demanding branch-circuit protection for residential, commercial, and light industrial applications.

Why this breaker stands out:

  • Secure bolt-on mounting delivers a rigid, vibration-resistant connection to the bus, minimizing loosening risk in dynamic environments.
  • Thermal-magnetic trip unit provides stable, repeatable protection by accurately responding to both overloads and short circuits.
  • OEM compatibility designed to work with matching Siemens/ OEM loadcenters and panelboards for a cohesive, reliable protection solution.
  • Versatile application ideal for residential panels, commercial equipment rooms, and light industrial distributions where dependable protection is essential.

The CFD63B125 is purpose-built for branch circuit overcurrent and short-circuit protection, ensuring your panelboard or loadcenter stays safeguarded under normal operation and during fault conditions. Its 3-pole design supports multi-phase setups, making it suitable for a range of panel configurations and installation scenarios.

Technical overview at a glance:

  • Manufacturer: Siemens
  • Part number: CFD63B125
  • Type: Thermal-magnetic molded case circuit breaker
  • Amperage rating: 125 A
  • Voltage rating: 600 V
  • Number of poles: 3
  • Mounting style: Bolt-on
  • Application: Branch circuit overcurrent and short-circuit protection

For professionals building or maintaining panel systems, the CFD63B125 offers a precise, reliable protection option that aligns with Siemens OEM panels while delivering predictable performance across common operating conditions. Whether upgrading an existing installation or configuring a new panel, this breaker helps you achieve clean protection, solid conductivity, and straightforward serviceability.

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

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