The Schneider Electric A9F57310 is a 3-pole miniature circuit breaker from the Acti9 IKQ series, rated 10 A with a C-curve trip characteristic (magnetic trip between 5 and 10 times In). It breaks 10,000 A Icn at 415 V AC 50/60 Hz per EN 60898-1, with a service breaking capacity (Ics) of 7,500 A at the same voltage — meaning after clearing a fault at the Ics level, the breaker remains functional for continued service, not just a one-shot clearance.
At 10 A, this breaker protects a 2.5 mm² copper circuit in typical domestic or light commercial sub-distribution.
Mounting and wiring integration
Plug-on mounting to a DIN rail (35 mm symmetrical rail per EN 60715). The 54 mm width occupies 6 module pitches, leaving room for adjacent devices in a multi-row enclosure. Terminals accept 1–25 mm² rigid or 1–16 mm² flexible copper on the bottom connection; strip length 14 mm, tightening torque 2 N·m. Padlockable toggle for lockout/tagout. Trip indicator provides local visual confirmation of the tripped state.