The Schneider Electric EZCV250H4250 is a 4-pole molded case circuit breaker from the EasyPact EZCV250H series, rated 250 A at 40 °C with a thermal-magnetic TM-D trip unit. It carries a 100 kA Icu breaking capacity at 240 V AC, dropping to 36 kA at 380–415 V and 25 kA at 440 V — figures that govern selectivity coordination in a distribution panel. The breaker includes integral earth-leakage protection, which simplifies the bill of materials by eliminating a separate RCD in many panel layouts.
If your panel runs hotter — say 50 °C — expect derating; the TM-D unit's thermal element responds to ambient temperature.
At 140 mm wide, 165 mm tall, and 68 mm deep, it occupies a compact footprint for a 250 A frame. IP20 finger-safe terminals and IK07 impact resistance cover basic handling during installation.