The Schneider Electric A9K23201 is an Acti9 iK60N miniature circuit breaker (MCB) rated at 1 A with a B-curve trip characteristic, 2 poles, and a 6 kA breaking capacity at 400 V AC.
The 6 kA Icn at 400 V AC conforms to EN/IEC 60898-1, which is the standard for household and similar installations. This is a limitation class 3 device per the same standard, meaning it limits let-through energy enough to protect downstream equipment in a fault. The rated insulation voltage (Ui) is 440 V AC, so it's fine on 400 V line-to-line systems.
Mounting and connections
The 2-pole width is 36 mm (4 x 9 mm pitches). Tunnel-type terminals accept 1 to 25 mm² rigid or 1 to 16 mm² flexible cable; tightening torque is 2 N.m.
Rated for 10,000 electrical cycles and 20,000 mechanical cycles — typical for a distribution MCB. The toggle provides ON/OFF visual indication. Padlocking provision allows lockout/tagout.