Square D FH26100AB - 100 A, 600 V, 2-Pole Plug-In Circuit Breaker | AmpState

The Square D FH26100AB delivers dependable branch circuit protection in a compact, plug-in molded case design. Built for reliability in panelboards and load centers, this 2-pole breaker combines robust electrical protection with quick-service practicality.

Key advantages at a glance

• Fast plug-in connection enables quick installation and effortless replacement, reducing downtime during maintenance or panel upgrades.
• Thermal-magnetic trip unit provides stable, repeatable protection for both overloads and short circuits, helping to prevent nuisance trips and equipment damage.
• OEM-compatible design is specifically matched to Square D panelboards and load centers, ensuring a seamless, secure fit and reliable operation.
• 2-pole configuration guarantees simultaneous disconnection on both conductors, enhancing safety for multi-wire circuits.
• 100 A, 600 V rating covers a wide range of residential, commercial, and light industrial applications requiring solid branch-circuit protection.

Ideal applications

• Residential subpanels and multi-room feeders where reliable overcurrent protection is essential.
• Commercial electrical rooms, storefronts, and light industrial equipment where quick replacement and dependable protection save downtime.
• Panelboards and load centers that require a plug-in solution with predictable thermal-magnetic response.

Technical snapshot

• Manufacturer: Square D
• Part number: FH26100AB
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100 A
• Voltage rating: 600 V
• Number of poles: 2
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

How this breaker supports your electrical system

Choosing the FH26100AB means prioritizing reliability and serviceability. The plug-in design minimizes panel downtime during replacement or upgrades, while the thermal-magnetic trip unit delivers dependable performance across typical contact and load conditions. When paired with matching Square D OEM load centers, it delivers a cohesive protection strategy—ensuring that each circuit benefits from consistent response characteristics and straightforward maintenance.

Practical tips for best results

• Verify panelboard compatibility with the FH series before installation to ensure a proper fit and guaranteed electrical contact.
• When upgrading, plan for simultaneous replacement of any nearby breakers to maintain balanced distribution and uniform protection across the panelboard.
• Document the 100 A, 600 V rating and 2-pole configuration in your electrical drawings to streamline future servicing and inspections.