Schneider Electric GFM25CT U Circuit Breaker Module

Schneider Electric's GFM25CT is a neutral current transformer (CT) accessory for PowerPact H- and J-frame molded‑case circuit breakers, designed to work with the Micrologic Ground-Fault Module to enable ground-fault protection for four‑wire loads. This UL Listed/CSA Certified add‑on provides the neutral current input required by the GFM when protecting four‑wire circuits, and is specified for use with H‑frame breakers (15–150 A) or J‑frame breakers (150–250 A). The GFM25CT is the dedicated neutral current transformer catalog number for the GFM system, pairing with the GFM add‑on to sense leakage current and trigger protective action as part of Schneider Electric’s Micrologic ground‑fault protection approach. Typical applications include industrial control panels and switchgear where four‑wire feeders demand reliable ground fault sensing and rapid tripping of the associated breaker.