The Schneider Electric EZC250H44225 is a 4-pole molded case circuit breaker from the EasyPact EZC250H series, fitted with a TM-D thermal-magnetic trip unit rated at 225 A at 50 °C. It's a Category A breaker (no intentional short-time delay), intended for distribution duty in fixed-mount backplate installations. The H breaking capacity code means it delivers 85 kA Icu at 220–240 V AC, 36 kA at 380–415 V AC, and 25 kA at 440 V AC — figures that govern its ability to interrupt fault current without upstream cascading.
If your panel runs hotter, you derate; if cooler, you get headroom. The TM-D trip unit combines a thermal element for overload protection (inverse-time curve) and a magnetic element for short-circuit protection — no electronic adjustments, just a fixed characteristic that's field-proven and simple to coordinate. Breaking capacity varies by voltage: 85 kA at 240 V AC, 36 kA at 380–415 V AC, 25 kA at 440 V AC, 10 kA at 550 V AC, and 30 kA at 250 V DC (2P). The 10 kA figure at 550 V AC is the limiting case — if your system's available fault current exceeds that at 550 V, this breaker won't interrupt safely and you need a higher-rated frame or a current-limiting upstream device.
Fixed-mount on a backplate, with front-front connections (line and load both terminate on the front face). IP20 finger-safe protection on the front, IK07 impact resistance — it's a panel interior breaker, not a washdown enclosure part.
Designed and tested to JIS C8201-2-2, EN/IEC 60947-2, and GB/T 14048.2.