Square D | FI26100AC | Circuit Breaker | 100A | 2-Pole | 600V

Protect your electrical system with the Square D FI26100AC circuit breaker—a precise, dependable solution for maintenance, retrofit, and replacement projects. This 100A, 2-pole unit is rated for 600V, delivering robust protection for demanding commercial and light industrial panels while preserving the exact specifications your system requires.

Key specifications at a glance

• Amperage: 100A
• Poles: 2-Pole
• Voltage rating: 600V
• Part reference: FI26100AC

Why choose the FI26100AC for your project

• Exact-match compatibility: Use the FI26100AC as the primary reference when validating fit with your panel or enclosure, ensuring the electrical ratings and physical dimensions align with your equipment.
• Versatile for modernizations: Ideal for routine maintenance, panel retrofits, or replacing aging breakers where preserving current ratings and footprint matters.
• Trusted Square D design: Rooted in Square D engineering heritage, offering consistent protection and reliable performance in challenging environments.

Practical installation and use cases

• retrofit projects in commercial spaces that rely on 2-pole breakers to safely interrupt both conductors in a circuit.
• service upgrades in facilities operating on 600V systems, maintaining specification while minimizing panel changes.
• replacement scenarios where existing equipment matches the FI26100AC in rating and footprint, reducing downtime and preserving wiring and bus assemblies.

Notes and care

Before ordering, confirm fit and ratings with your panel labeling. The FI26100AC part number is the most reliable reference for compatibility, so cross-check panel documentation or manufacturer catalogs to avoid mismatches and ensure a seamless install.