Square D FC34100G 100A 3-Pole 480 V Circuit Breaker

Meet the Square D FC34100G 100A 3-Pole 480 V Circuit Breaker—a trusted protection device designed for demanding three-phase power systems. With a 100-amp rating and a 480-volt maximum, this unit is built to safeguard heavy feeders and motor circuits in commercial and industrial environments, delivering reliable restraint against overloads and short circuits.

• Part Number: FC34100G
• Current rating: 100 A
• Poles: 3
• Voltage rating: 480 V
• Brand: Square D
• Application: three-pole protection for 3‑phase distribution

Where this shines

• Three-phase 480 V distribution panels in manufacturing floors, facilities, and data centers
• Motor feeders and heavy equipment circuits that require solid, reliable interruption protection
• New installations or replacements within established Square D ecosystems to maintain compatibility and service continuity

Why choose the Square D FC34100G

Choosing a 3-pole 480 V circuit breaker from a legacy name like Square D means compatibility with standard Square D enclosures, predictable performance, and a serviceable design backed by decades of industry use. The FC34100G line is designed to fit common panel frames and protect three-phase circuits without complicating wiring or panel architecture. For facilities managing complex power loads, this unit simplifies protection strategies by providing a single, reliable device that handles all three phases together, reducing the risk of mismatched protection among phases.

Installation and compatibility tips

• Verify that your electrical panel accepts FC34100G devices and supports a 3-pole, 480 V configuration
• Confirm the system voltage aligns with the 480 V rating and that the load is balanced across all three phases
• Follow manufacturer guidelines for mounting, wiring, and torque specifications to ensure proper engagement and protection
• Regularly inspect for signs of wear or overheating in high-load environments and replace as needed to maintain protection integrity

Whether you’re upgrading an aging panel or equipping a new facility, the Square D FC34100G 100A 3-Pole 480 V Circuit Breaker delivers dependable, three-phase protection that keeps critical equipment and processes running smoothly. Add this reliable 3-pole solution to your electrical arsenal and safeguard your 480 V distribution with a unit that’s built to last.