Square D FCP34100MT 100A 3-Pole 480 V Circuit Breaker

Square D FCP34100MT is a 100A, 3-pole circuit breaker rated for 480 V, built to protect three-phase electrical systems from overloads and short circuits. The part number FCP34100MT identifies this specific model within the Square D family, ensuring compatibility with Square D panels and accessories for a streamlined electrical distribution solution.

What it protects

With a three-pole design, this breaker guards three-phase distribution up to 480 volts, providing reliable overcurrent protection for motors, drives, pumps, and other equipment powered by 3-phase systems.

Ideal for professionals and facilities

Designed for industrial and commercial environments where consistent, dependable 3‑phase protection is essential. The FCP34100MT integrates smoothly with existing Square D infrastructure, supporting straightforward replacements and maintenance without compromising performance.

Key specifications at a glance

• Current rating: 100 A
• Poles: 3
• Voltage rating: 480 V
• Part number: FCP34100MT

Practical usage and tips

• Install in compatible Square D panels designed to accept this model for reliable fit and electrical integrity.
• Use to protect feeders and three-phase equipment operating at or below 480 V, such as industrial motors, conveyors, and HVAC drives.
• Maintain an inventory of spare breakers to reduce downtime during maintenance or fault replacement.

Whether you're upgrading an existing 480 V distribution network or specifying components for a new 3-phase installation, the Square D FCP34100MT 100A 3-Pole 480 V Circuit Breaker delivers precise protection, quick fault isolation, and seamless compatibility with the Square D ecosystem.