The Schneider Electric EZC250H2175 is a 2-pole EasyPact EZC250H MCCB rated 175 A at 40 °C, with a TM-D thermal-magnetic trip unit. It's a distribution-grade circuit breaker per IEC 60947-2, Category A, meaning it's not intended for selective coordination in series with other breakers — it clears faults independently. The 36 kA Icu at 400 V AC (50/60 Hz) is the headline breaking capacity for most European and Asian 400 V lineups; at 550 V AC it still holds 10 kA, so it handles the full voltage range of a standard 400 V system with headroom.
This H-code frame delivers 85 kA Icu at 220-240 V AC and 36 kA at 400-415 V AC — that's the number that matters for most distribution panels. At 550 V AC it drops to 10 kA, and on DC it offers 30 kA at 125 V DC (1-pole) or 250 V DC (2-pole). For a 175 A frame, 36 kA at 400 V is solid for secondary distribution; if your fault current exceeds that, step up to the S or L breaking capacity codes in the same EasyPact EZC250 family.
Fixed backplate mount, front connections top and bottom. Connection pitch is 35 mm between poles — standard for a 2-pole frame this size. IP20 finger-safe front, IK07 impact resistance.
Protection and control
The TM-D trip unit provides short-circuit and overload protection — no earth-leakage module on this variant. Positive contact indication on the toggle gives visual confirmation of contact position. Ambient operating range -25 to 70 °C; the 175 A rating at 40 °C derates at higher temperatures — at 50 °C the trip unit rating is still 175 A, but the continuous current capacity follows the thermal curve.