Square D | KCF34100 | Circuit Breaker | 100A | 3-Pole | 480V

The Square D KCF34100 circuit breaker is a purpose-built 100A, 3-pole unit designed for 480V systems. Built to align with Square D compatibility standards, this model is ideal for maintenance, retrofit, and replacement projects where exact specs matter. The part number KCF34100 serves as the most reliable reference for ensuring a correct fit in your panel or switchgear lineup.

Why this model stands out

• Exact-fit protection for 3‑phase, 480V networks — designed to integrate smoothly with Square D panels and gear that require a 3-pole, 480V configuration.
• Clear compatibility reference — use KCF34100 as the primary cross-check to minimize misfits during replacements or retrofits.
• Maintenance-friendly replacement topology — specifically suited for upgrading aging components or refreshing existing protection in industrial and commercial facilities.

Key specifications

• Amperage: 100A
• Poles: 3-Pole
• Voltage: 480V
• Part reference: KCF34100

Important installation notes

Before ordering, confirm fit and ratings against your panel catalog. Use KCF34100 as the best compatibility reference to minimize mis-match risk. This breaker is intended for 3‑phase, 480V applications and should be installed by qualified personnel who follow local electrical codes and safety practices.

Ideal use cases

• Retrofits in aging industrial panels where a precise 100A, 3‑pole, 480V breaker is required.
• Maintenance replacements in manufacturing lines, data centers, and commercial facilities that run 3‑phase 480V distribution.
• New installations needing a robust, standard-ready interruption device that aligns with Square D specifications.

For reliable, site-ready protection of 480V three-phase circuits, the Square D KCF34100 delivers a precise, compatible solution designed to meet the demands of modern industrial electrical systems.