The EZC100N1100 is a 1-pole EasyPact EZC100N moulded-case circuit breaker rated 100 A at 40 °C (trip unit rating 100 A at 50 °C) with a thermal-magnetic TM-D trip unit. It provides short-circuit and overload protection in distribution panels. The breaking capacity varies by voltage: 25 kA Icu at 110–130 V AC, 18 kA at 220–240 V AC, and 2.5 kA at 400–415 V AC — so at 400 V line-to-line the fault-interrupt rating drops sharply; selectivity studies need the 2.5 kA figure, not the 25 kA headline. Rated operational voltage covers 125 V DC (1-pole) and 415 V AC 50/60 Hz; insulation voltage is 690 V AC.
IP20 finger protection on the front face; IK07 impact resistance means it withstands a 2 J hammer blow — adequate for panel-door mounting where accidental tool strikes occur.