Square D FA100S - 100A, Circuit Breaker

Meet the Square D FA100S 100A Circuit Breaker — a rugged, dependable overcurrent protection device engineered for demanding electrical environments. Built by Square D, a name trusted by electricians and engineers for decades, this 100 amp breaker is designed to slot into panelboards, switchboards, control panels, and OEM equipment with precision and reliability.

Key benefits and what it means for you:

• Accurate 100A protection — quickly interrupts power on overloads to prevent damage to wiring and equipment.
• Versatile integration — compatible with distribution panels and motor control centers, making it suitable for industrial, commercial, and OEM applications.
• Industrial-grade reliability — built for continuous operation in harsh environments, minimizing nuisance trips and downtime.
• Safety-focused design — ensures safe disconnection under fault conditions, helping maintain workplace safety standards.
• Easy installation and maintenance — straightforward integration into existing electrical infrastructure with standard mounting and connection interfaces.

Why choose the FA100S for your project? When your system depends on consistent overcurrent protection, you need a device that not only meets rating requirements but also withstands the rigors of daily operation. This 100A circuit breaker is purpose-built for panelboards, switchboards, control panels, and OEM equipment, delivering dependable protection that you can count on in distribution panels and motor control centers.

Ideal use cases:

• Protect feeders and branch circuits in factory floor panelboards.
• Guard motor circuits in MCCs against overloads and short circuits.
• Upgrade legacy control panels that require a robust 100A protection device.

Technical snapshot

• Current rating: 100 A
• Breaker type: Circuit Breaker
• Applications: panelboards, switchboards, control panels, OEM equipment
• Ideal for: industrial, commercial, and OEM environments needing dependable overcurrent protection