The Schneider Electric A9K23310 is a 3-pole miniature circuit-breaker from the Acti9 iK60N range, rated 10 A at 30 °C with a B-curve trip characteristic. It carries a 6 kA breaking capacity (Icn) at 400 V AC, 50/60 Hz, certified to EN/IEC 60898-1 — the standard for overcurrent protection in residential and light commercial distribution boards. The thermal-magnetic trip unit responds to overloads via a bimetal strip and to short-circuits via a solenoid, with magnetic tripping set at 3 to 5 times the rated current (In).
Fit and integration
Clip-on mounting to DIN rail (EN 60715) with a 54 mm width — three 18 mm pole widths. Depth is 78.5 mm, height 85 mm. The tunnel-type terminals accept 1 to 25 mm² rigid or 1 to 16 mm² flexible cable; wire strip length is 14 mm.
