The A9F68425 is a 4-pole Acti9 iT60 miniature circuit breaker rated 25 A with a C curve, meaning the magnetic trip operates at 5 to 10 times In — standard for general-purpose distribution loads like lighting, socket outlets, and small motor circuits where inrush isn't extreme. The 36 kA breaking capacity at 133 V AC (per EN/IEC 60947-2) drops to 10 kA at 400 V AC; that 10 kA Icn at 400 V under EN/IEC 60898-1 is the figure to coordinate with downstream devices in a 400 V panel. The 4 protected poles and 500 V insulation voltage suit three-phase plus neutral distribution in a 230/400 V network. Thermal-magnetic trip technology with magnetic tripping at 8 x In ±20 % gives a fixed short-circuit threshold; no adjustment, so selectivity with upstream breakers depends on the gap between this 25 A rating and the upstream device's magnetic pickup. The DIN-rail mount with removable comb busbar (8 x 9 mm pitches) and 72 mm width (4 x 18 mm per pole) is the standard modular form factor for Acti9 panels. Terminal accepts 1–25 mm² rigid or 1–16 mm² flexible, 2 N.m torque, 14 mm strip. IP20 B front face means finger-safe terminals but no washdown rating — indoor panel only.
Dual-certified to EN/IEC 60947-2 (industrial) and EN/IEC 60898-1 (domestic/installation), utilisation category A, limitation class 3. Suitability for isolation confirmed per both standards. Tropicalisation class 2 per EN/IEC 60068-2-78 (95 % RH, 55 °C) means it handles warm, humid environments without derating — relevant for SEA or coastal plant rooms.