Square D | GFM100FA | Circuit Breaker | 100A

Square D GFM100FA Circuit Breaker — a 100A protection device crafted for reliability in panels that accept GFM-series breakers. This unit is built for maintenance, retrofit, and replacement projects where exact specifications matter, helping you keep electrical systems safe and compliant.

Key details

• Amperage: 100 A
• Part number: GFM100FA
• Compatibility note: Confirm fit and ratings before ordering. The part number is the best reference for compatibility.

Ideal use cases

• Maintenance: Replace aging or faulty breakers to restore reliable circuit protection and minimize downtime.
• Retrofit: Update existing panels to meet current electrical demands without changing the panel enclosure.
• Replacement: Field service where a like-for-like, exact-spec breaker is required to maintain panel integrity.

Compatibility and ordering tips

To ensure a seamless swap, use the exact GFM100FA part number as your reference. This helps guarantee you’re selecting a breaker that matches your panel’s electrical characteristics and mounting interface, reducing the risk of mismatches and future service interruptions.

Why this matters

Choosing the right breaker lengthens panel life, supports safer operation, and simplifies future maintenance. With the Square D brand and the precise GFM100FA specification, you gain a trusted, interoperable solution designed to fit your existing Square D infrastructure and protect critical circuits with clear, decisive protection.