The Schneider Electric EZC250F3175 is a 3-pole EasyPact EZC250F moulded-case circuit breaker with a thermal-magnetic TM-D trip unit rated 175 A at 40 °C. The TM-D trip gives you fixed thermal overload protection (the bimetal element) and fixed magnetic short-circuit pickup; no adjustment dials, so set your coordination study around those fixed thresholds. Breaking capacity is the real selector here. At 440 V AC it interrupts 10 kA Icu (IEC 60947-2). At 400–415 V AC that climbs to 15 kA Icu, and at 380 V AC to 18 kA Icu. For 220–240 V AC circuits it handles 25 kA Icu. On DC: 5 kA Icu at 125 V DC (1-pole) or 250 V DC (2-pole). The 'F' breaking capacity code tells you this is the standard-interrupting version of the EZC250F frame — not the high-breaking 'H' variant.
Dimensions: 105 mm wide, 165 mm high, 60 mm deep — fits a standard MCCB footprint in most distribution boards. IP20 finger-safe terminals; IK07 impact rating means it survives a 2 J hammer blow during panel work. Toggle control with positive contact indication — you can see and feel the contact position.
Compliance documentation is straightforward: the breaker carries IEC 60947-2, EN 60947-2, GB/T 14048.2, and JIS C8201-2-2 certifications. No earth-leakage protection built in; if you need that, you add an external Vigi module or use the EZC250F with earth-leakage option.
Category A utilization (no intentional short-time delay) means this breaker trips instantaneously on short-circuit — it's a feeder or branch-circuit protector, not a main breaker that needs selectivity with downstream devices via ST delay. Use it downstream of a main breaker or fuse that has a higher Icu rating and can coordinate. Mechanical durability of 10,000 cycles is typical for a distribution MCCB; fine for panel switching a few times a year, not for frequent motor-starting duty.