The A9F03313 is a 13 A, 3-pole miniature circuit breaker from the Acti9 iC60N family, curve B. The curve B magnetic trip operates at 4 x In ±20 % (cites:), meaning it trips instantaneously between roughly 41.6 A and 62.4 A — suited for resistive or lightly inductive loads where inrush is low, such as lighting circuits or control transformers. The 36 kA Icu at 12-133 V AC (cites:) is the ultimate breaking capacity under EN/IEC 60947-2; at 400 V AC the Icn (rated short-circuit capacity per EN/IEC 60898-1) is 10 kA (cites:).
Integration and deployment
IP20 finger-safe terminals (cites:) are standard for enclosed distribution boards. Overvoltage category IV (cites:) confirms it can be used at the service entrance or main distribution point.
