The Schneider Electric EZCV250N44175 is a 4-pole EasyPact EZCV250N moulded-case circuit breaker (MCCB) rated 175 A at 40 °C with a thermal-magnetic TM-D trip unit. The 20 kA Icu at 440 V AC (50/60 Hz) per IEC 60947-2 is the ultimate breaking capacity — the breaker can safely interrupt a fault at that level once and remain functional.
Protection and deployment context
This MCCB combines short-circuit, overload, and earth-leakage protection in one package — the earth-leakage element saves a separate RCCB in the panel. The TM-D trip unit is thermal-magnetic: the thermal bimetal handles overloads (inverse-time curve), and the magnetic coil trips instantaneously on short-circuit. The IP20 finger-safe enclosure and IK07 impact resistance suit it for backplate mounting inside a distribution cabinet, not for outdoor or washdown locations.
