The Schneider Electric A9K24620 is a 1P+N miniature circuit-breaker from the Acti9 iK60N range, rated 20 A at 30 °C with a C-curve trip characteristic.
Clip-on mounting to a 35 mm DIN rail (EN 60715) — the 36 mm width (4 x 9 mm pitches) snaps into a standard distribution board. Tunnel-type terminals accept 1 to 25 mm² rigid or 1 to 16 mm² flexible cable; strip 14 mm and torque to 2 N·m. IP20 finger-safe terminals, pollution degree 2.
Rated insulation voltage 440 V AC, overvoltage category II. Limitation class 3 (energy-limiting) — relevant for coordination with downstream devices. Mechanical durability 20,000 cycles, electrical 10,000 cycles. Padlocking device provision for lockout/tagout.
