Square D 3POLE - 100A, 3-Pole, Circuit Breaker

Meet the Square D 3POLE - 100A, 3-Pole Circuit Breaker—designed to deliver dependable overcurrent protection for three-phase systems in industrial, commercial, and OEM environments. Whether you're wiring a distribution panel, a switchboard, or a motor control center, this breaker provides reliable interruption whenever fault current occurs, keeping both equipment and personnel safer.

Key features

• Three-pole configuration delivers synchronized protection across all three phases in a single unit.
• 100 A current rating suited for medium-load distribution and motor circuits.
• Versatile compatibility designed for panelboards, switchboards, and control panels.
• Brand confidence Square D — a trusted name in industrial electrical protection.
• Built for demanding environments robust construction intended for long-term operation in industrial settings.

Ideal use cases

• Three-phase motor protection in manufacturing lines and processing equipment.
• Main feeders and distribution points in panelboards and switchboards.
• OEM applications requiring modular, three-pole overcurrent protection.

Why it matters

The 3-pole design ensures consistent protection across all three phases, reducing the risk of phase imbalance, equipment damage, and unexpected downtime. By interrupting fault currents quickly and safely, it helps keep your distribution panels and motor control centers operating with minimal interruptions.

Installation and selection tips

Choose a 100 A, 3-pole circuit breaker when your panel, switchboard, or control panel is designed for three-phase protection at this rating. This Square D device integrates into standard three‑phase assemblies and complements other Square D protection components for a cohesive electrical protection strategy.