The ABB F204AC-25/0.03 is a 2-pole residual current circuit breaker (RCCB) rated 25 A at 480Y/277 V AC, with a 30 mA trip threshold. The 30 mA sensitivity is the standard for personnel protection — it detects leakage currents that could pass through a human body and clears the circuit before fibrillation risk. The 25 A continuous rating means it protects a branch circuit or subpanel up to that load; the 480Y/277 V rating covers 480 V wye systems common in North American commercial and light industrial distribution. It mounts on standard DIN rail, which simplifies panel layout and retrofit.
This part is in the current lifecycle stage, meaning it remains in ABB's active catalog and is not subject to a last-time-buy notice. No official successor has been issued — this is the current production variant for the F200 series at this rating.
Integration into the distribution board
The 2-pole form factor occupies two module widths, which matters when planning fill factor in a crowded distribution board. Terminals accept copper conductors sized for the 25 A circuit; the 30 mA trip coil is self-powered and requires no auxiliary supply. UL 1053 listing covers ground-fault sensing equipment for use in service-entrance or downstream subpanels.