The ABB 2CCS471001R0984 is a 1-pole miniature circuit breaker with a C tripping characteristic, rated at 500 mA and 440 V insulation voltage. It mounts on a DIN rail and is protected to IP20 — suitable for dry indoor panel environments where the breaker is enclosed behind a gland plate or cabinet door.
Breaking capacity and selectivity
Rated short-circuit breaking capacity Icn is 10 kA per the standard, while the ultimate breaking capacity Icu reaches 50 kA. That Icu figure gives headroom for high-fault installations — the breaker can clear a 50 kA fault once (Icu) even if its service Icn rating is lower. Overvoltage category III means it's rated for fixed installations downstream of the main distribution board, not for plug-in equipment.
Panel fit and wiring
Dimensions: 69 mm wide, 89 mm high, 94.5 mm deep. The 69 mm width is standard for a single-pole MCB on a DIN rail — plan for 18 mm per pole plus a bit of finger space between adjacent breakers. Screw terminals accept solid or stranded copper; strip length and torque follow the nameplate markings. IP20 means no water ingress protection — keep it behind a panel door or in a dry enclosure.