Schneider Electric PFA100N Industrial Circuit Breaker

The PFA100N is a 100 A, 600 V busway plug‑in unit from Square D / Schneider Electric, designed for use with Square D busway systems. This three‑pole, four‑wire bus plug is a plug‑in enclosure with neutral, providing a dedicated connection point within modular power distribution to feed or branch busways efficiently in industrial facilities. Intended for integration into compatible busway enclosures, the PFA100N supports quick installation and reconfiguration of feeder circuits without separate fusing or panel mounting, helping streamline changes to power layouts during plant upgrades or relocations. Typical applications include manufacturing floors, process plants, data centers, and other industrial environments where reliable, scalable bus distribution is required; the unit pairs with other PFA components to form a continuous, high‑density power path up to 600 V and 100 A. When selecting this unit, confirm compatibility with your Square D busway system and follow appropriate safety protocols during installation and maintenance.