Schneider Electric EZCV250H4063 EasyPact MCCB, 63 A, 25 kA a

The EZCV250H4063 is a 4-pole molded case circuit breaker from Schneider Electric's EasyPact EZCV250H series, fitted with a TM-D thermal-magnetic trip unit rated 63 A at 40 °C. The headline number here is the breaking capacity: 25 kA Icu at 440 V AC (per IEC 60947-2). At 380–415 V the Icu rises to 36 kA, and at 220–240 V it hits 100 kA, so the same breaker covers both 400 V class and 240 V distribution panels with headroom. The TM-D trip unit provides overload protection (thermal curve) and short-circuit protection (magnetic instantaneous trip), plus earth-leakage protection is integrated — no separate RCCB needed downstream for that function. The breaker is rated Category A (no intentional short-time delay), so it's suited for distribution duty rather than motor-starting or selective coordination schemes that require Category B breakers. The 4-pole configuration with 3 protected poles (3t) and an unprotected neutral means it switches all four poles but only the three phase poles have overcurrent protection; the neutral pole is switched but not monitored. Mounting is fixed (backplate) with front-front connections — both line and load terminate on the front face, which simplifies busbar layout in a distribution board. IP20 finger-safe protection on the front, IK07 impact resistance per EN 50102.