The A9F06250 is a Schneider Electric Acti9 iC60H miniature circuit breaker — 50 A rated current, 2-pole, curve B, with a 42 kA Icu breaking capacity at 12-133 V AC.
At 220-240 V AC it still holds 30 kA Icu, and at 380-415 V AC it's 15 kA Icu. The curve B magnetic trip (4 x In ±20%) means it trips instantaneously at 200 A (4 × 50 A) — that's a fast, low-threshold trip designed for resistive loads like heaters, lighting banks, and control transformers where inrush is minimal. For motor or drive circuits with higher inrush, a curve C or D would be the better call; this one stays in the distribution and general-purpose zone.
The IP20 finger-safe front allows panel-door mounting without additional shrouding. Pollution degree 3 rating means it's suitable for industrial enclosures where conductive dust or humidity is present — no derating needed for typical control-panel environments.
Dual-certified to EN/IEC 60947-2 (industrial circuit-breaker standard) and EN/IEC 60898-1 (household/miniature breaker standard) — so it qualifies for both industrial panelboards and commercial distribution boards. Isolation suitability is confirmed under both standards. The thermal-magnetic trip unit provides overload protection via the thermal bimetal and short-circuit protection via the solenoid.
