The Schneider Electric A9C63425 is a Reflex iC60N Ti24 integrated control circuit breaker from the Acti9 range, combining overcurrent protection with remote switching in a single 4-pole package. The part is certified to EN/IEC 60947-2 and carries a 20 kA Icu breaking capacity at 230 V AC, dropping to 10 kA at 380–415 V AC. That SCCR headroom is enough for most distribution sub-panels in industrial control cabinets; the 500 V AC rated insulation voltage (Ui) confirms it lives on 400 V three-phase networks without derating.
Control and signalling — what the Ti24 suffix means
Ti24 denotes the control interface: the breaker accepts a maintained or pulsed low-voltage signal (24 V AC/DC, 48 V AC/DC, or 230 V AC) on its integrated control coil, so a PLC or remote pushbutton can toggle the main contacts without a separate contactor. Local status is visible through the green ON LED, red fault LED, and flashing indicators for tripped, overheat, and ready states. The control circuit voltage options (24 V AC/DC, 48 V AC/DC, 230 V AC) let you match the panel's existing control voltage — no extra transformer for the coil.
The fixed mounting mode and 13 × 9 mm pitch footprint (117 mm wide, 84 mm high, 77 mm deep) occupy four modular spaces in the enclosure. Tropicalisation class 2 means it withstands 93 % RH at 40 °C, so coastal or unconditioned plant rooms are fine. The padlockable OFF position (provision for padlocking) satisfies lockout/tagout requirements without an accessory.