It's a distribution breaker, Category A (no intentional short-time delay), rated for isolation per IEC 60947-2.
Breaking capacity at the voltages that matter
This breaker carries an H breaking capacity code, and the numbers back it: 36 kA Icu at 380 V and at 400–415 V AC, 25 kA at 440 V, and 10 kA at 550 V AC. On DC circuits it's rated 30 kA Icu at 125 V DC (1-pole) and 30 kA at 250 V DC (2-pole). The 85 kA at 110–130 V and 220–240 V AC is for low-voltage control transformer or lighting panels — not the main distribution number, but it tells you the arc chamber handles high energy at lower voltages without venting.
The TM-D trip unit is thermal-magnetic — the thermal bimetal handles overload protection (inverse-time curve), the solenoid handles short-circuit. Rated 125 A at 50 °C, which is the continuous current it carries in a 50 °C ambient; the same breaker is listed at 125 A at 40 °C as the nominal In. No earth-leakage module, no neutral protection — this is a straight 2-pole line breaker for phase-to-phase loads or a 2-wire DC circuit.
Fixed mount on a backplate with front-connect terminals — no DIN-rail adapter on this frame. The 105 mm width (3.5 modules on a 35 mm pitch) and 165 mm height fit standard distribution panel cutouts. IP20 finger-safe front, IK07 impact rating for the enclosure. Positive contact indication on the toggle so you can visually confirm the state without opening the door.
Current production — the EZC250H series is an active catalog line from Schneider. Standards compliance covers EN/IEC 60947-1 and -2, GB/T 14048.2 (China), and JIS C8201-2-2 (Japan). Rated insulation voltage 690 V AC, operational voltage 550 V AC / 250 V DC. Mechanical durability 10,000 cycles.