Square D FCJ24100G 100A 2-Pole 480 V Circuit Breaker

Step up protection for 480V electrical feeds with the Square D FCJ24100G 100A 2-Pole 480 V Circuit Breaker. This rugged protective device is engineered to quickly disconnect power when faults occur, safeguarding equipment and minimizing downtime in demanding commercial and industrial environments. With a 100‑amp rating and a two‑pole design, the FCJ24100G ensures both hot legs trip together, preventing dangerous arc faults and line‑to‑line faults.

Key specifications

• Current rating: 100 A
• Poles: 2
• Voltage rating: 480 V
• Part number: FCJ24100G
• Brand: Square D

Why this 2-Pole, 480V breaker stands out

The two-pole configuration is designed to interrupt both hot lines simultaneously, a crucial advantage in 480V circuits that minimizes exposure to fault conditions and helps protect connected equipment. Built by Square D, a trusted name in industrial electrical protection, this breaker provides dependable overcurrent protection for feeders and branch circuits in demanding environments. Its architecture supports streamlined panel layouts and straightforward replacement in compatible Square D panels, reducing downtime during maintenance or upgrades.

Ideal use cases

• Feeder protection for 480V distribution panels in factories, warehouses, and data centers
• Isolation and protection for equipment fed from 480V sources in commercial or light industrial settings
• Retrofit installations or upgrades within compatible Square D panelboards, offering a reliable 100A, 2-pole solution

Practical installation and usage tips

• Verify that your system voltage and load require a 480 V, 2-pole protective device and that 100 A matches the protected circuit.
• Ensure the breaker is compatible with your Square D panel or enclosure and that bus connections align with the panel’s design.
• Have a licensed electrician perform the installation and follow all safety procedures when handling live electrical systems.
• Keep an ongoing maintenance mindset: inspect connections and replace any damaged components to maintain reliable protection.

Maintenance and longevity

As a durable protective device built for industrial environments, the FCJ24100G is designed for longevity under normal operating conditions. Regular electrical safety checks and timely replacement of any worn parts help maintain optimal protection for your 480V circuits and the equipment they serve. When you choose Square D, you’re selecting a circuit breaker with a heritage of dependable performance in challenging applications.

Upgrade your 480V protection with the Square D FCJ24100G 100A 2-Pole 480 V Circuit Breaker and enjoy reliable, simultaneous trip protection that keeps your critical systems safe and your operations running smoothly.