The Schneider Electric EZC100H1045 is a 1-pole thermal-magnetic circuit breaker from the EasyPact EZC100H series, rated 45 A at 40 °C and carrying a TM-D trip unit. It's built for distribution duty in fixed-mount backplate panels, with front-front wiring and a 25 mm pole pitch that keeps the DIN-rail layout tight. Breaking capacity varies by voltage: 25 kA Icu at 220–240 V AC, 50 kA at 110–130 V AC, 5 kA at 380–400 V AC and at 415 V AC, and 10 kA at 125 V DC single-pole — all per IEC 60947-2. That 25 kA at 240 V is the figure most panel builders will reference for a 45 A feeder on a 240/120 V split-phase service.
Compliance covers EN/IEC 60947-1, IEC 60947-2, JIS C8201-2-2, and GB/T 14048.2. IP20 finger-safe protection on the front, IK07 impact rating on the enclosure.
Mounts fixed to a backplate — no DIN-rail adapter on this one. Dimensions: 130 mm high, 25 mm wide, 60 mm deep. The 25 mm pole pitch matches standard modular breaker spacing, so it rows up neatly with other EasyPact units on the same backplate. Toggle control with positive contact indication — you can see the contact state from the handle position. Mechanical endurance is 13,000 cycles, which is typical for a distribution-grade MCCB in this class.