Square D FA24100AB - 100 A, 2-Pole Plug-In Circuit Breaker | AmpState

The Square D FA24100AB is your trusted 100A, 2-pole plug-in molded case circuit breaker, engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. From AmpState’s trusted lineup, this unit pairs fast serviceability with durable protection for everyday electrical networks.

Why this breaker stands out

• Fast plug-in connection for quick installation and effortless replacement, minimizing downtime during upgrades or servicing.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance, automatically responding to sustained overloads and instantaneous short circuits.
• 2-pole design provides coordinated protection for multi-wire circuits and shared-neutral configurations commonly found in panelboards and load centers.
• OEM-compatible with matching Square D panelboards and load centers, ensuring seamless integration into existing electrical systems.
• Versatile application suitable for residential, commercial, and light industrial environments where reliable circuit protection is essential.

Technical snapshot

• Manufacturer: Square D
• Part number: FA24100AB
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100A
• Number of poles: 2
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases

Ideal for electricians and facilities managers upgrading or expanding electrical distribution. Install this FA24100AB as a plug-in protection device in panelboards to guard critical branch circuits from overloads and short circuits. It’s particularly well-suited for:

• Residential service panels with multi-wire branch circuits
• Commercial lighting and receptacle circuits
• Light industrial equipment feeds and subpanels

How it helps you work smarter

With a plug-in design, you can swap breakers without rewiring, reducing project timelines and downtime. The thermal-magnetic mechanism provides precise trip characteristics, helping prevent nuisance trips while still delivering prompt protection during fault events. For facilities that rely on predictable performance, this FA24100AB delivers repeatable protection across varying loads and environmental conditions.

Tips for optimal results

• Pair with a compatible OEM load center to ensure seamless mechanical fit and electrical continuity.
• Keep a spare FA24100AB on hand for rapid replacement during routine maintenance or expansion projects.
• Inspect mounting and connection integrity during service intervals to preserve reliable plug-in performance.