The A9K23410 is a 4-pole miniature circuit-breaker from the Acti9 iK60N series, rated 10 A at 30 °C with a B-curve magnetic trip threshold of 3 to 5 times In. The thermal-magnetic trip unit combines a bimetal element for overload protection (time-delayed, inverse-time curve) with a solenoid for instantaneous short-circuit protection.
Clip-on mounting to a 35 mm DIN rail (EN 60715) is standard; the 4-pole body occupies 8 modules of 9 mm pitch, for a total width of 72 mm. Depth is 78.5 mm, height 85 mm — fits standard distribution boards and enclosure cut-outs. Tunnel-type terminals accept 1 to 25 mm² rigid or 1 to 16 mm² flexible cable; tightening torque is 2 N.m. IP20 finger-safe terminals suit installation in enclosed panels; no additional touch-protection shrouds are required for the front face.
