The Schneider Electric EZ9F34325 is a 3-pole miniature circuit breaker from the Easy9 range, rated 25 A with a C-curve trip characteristic (magnetic trip between 5 and 10 times In). It breaks fault currents up to 4.5 kA at both 230 V and 400 V AC, per IEC 60898-1. That 4.5 kA Icn at 400 V means it can safely interrupt a hard short on a 400 V three-phase distribution board without welding its contacts or cascading damage upstream — the service breaking capacity Ics matches Icn at 100 %, so it's rated to reclose after a fault at full rating, not just survive once.
Clip-on mount to standard DIN rail, 54 mm wide (6 x 9 mm pitches). The 66.5 mm depth and 81 mm height keep it within the compact Easy9 footprint — no surprises when you're laying out a 12-way distribution board. IP20 finger-safe terminals accept 1 to 25 mm² rigid or 1 to 16 mm² flexible cable; tunnel-type terminals top and bottom, torque to 2 N·m. Ambient range -25 to 60 °C, storage -40 to 85 °C, with tropicalisation class 2 for humidity up to 95 %.
Rated insulation voltage 500 V AC, impulse withstand 4 kV — both per IEC 60898-1. Suitability for isolation is marked on the device (contact position indicator visible). Pollution degree 2, designed for clean indoor distribution panels. The Easy9 range carries CE marking; specific RoHS and REACH declarations are available from Schneider Electric's documentation portal for this order code.