Square D FA24100AC - 100 A, 2-Pole Plug-In Circuit Breaker | AmpState

Introducing the Square D FA24100AC — a purpose-built 100 A, 2-pole plug-in molded case circuit breaker designed to protect your electrical system with precision and speed. Engineered for dependable branch circuit overcurrent and short-circuit protection, it fits seamlessly into panelboards and load centers, helping you keep critical circuits safe and operational.

Designed for real-world applications, this breaker delivers a fast plug-in connection for quick installations and easy future replacements. The thermal-magnetic trip unit combines two proven protection mechanisms into one reliable package: the thermal element responds to sustained overloads with stable, repeatable trips, while the magnetic element delivers swift action on high-magnitude short circuits. The result is consistent protection performance across a range of operating conditions.

Key differentiators that matter in the field

• Fast, tool-free plug-in connection for minimal panel downtime during installation or service.
• Thermal-magnetic trip unit provides stable protection against both gradual overcurrents and sudden faults, reducing nuisance trips and protecting connected equipment.
• 2-pole design ensures simultaneous disconnection of both conductors, improving safety and meeting common electrical code expectations for most multi-wire circuits.
• 100 A rating makes it suitable for main or branch protection in residential, commercial, and light industrial environments.
• OEM-compatible with matching Square D load centers and panelboards, preserving system integrity and simplifying replacement parts compatibility.
• Plug-in molded case construction combines robust protection with straightforward servicing and maintenance.

Ideal use cases and applications

• Residential service panels where reliable main or branch protection is required without complex installation steps.
• Commercial panelboards and light industrial feeders needing quick replacements and predictable protection.
• Upgrade projects where matching OEM components maintain circuit protection consistency and panel warranty considerations.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: FA24100AC
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100 A
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

With the Square D FA24100AC, you’re choosing a dependable, field-friendly solution that delivers consistent protection, straightforward service, and compatibility across standard OEM load centers and panelboards. It’s a practical, no-nonsense choice for safeguarding electrical systems in a variety of settings, backed by the trusted performance of Square D and supported by AmpState.