The EZC100H4063 is a 4-pole EasyPact EZC100H circuit breaker from Schneider Electric, rated 63 A at 40 °C with a TM-D thermal-magnetic trip unit. The H breaking capacity code means it delivers 30 kA Icu at 380-400 V AC and 100 kA Icu at 110-130 V AC — enough to handle high-fault distribution panels without cascading upstream. The 63 A rating at 50 °C versus 63 A at 40 °C tells you the trip unit holds its full rating up to 50 °C; above that, you derate per the thermal curve. Mounting is fixed to a backplate with front connections and a 25 mm connection pitch. The 100 mm width × 130 mm height × 60 mm depth (-) fits standard panel layouts; the IP20 enclosure means it's protected against solid objects larger than 12 mm but not against moisture — keep it inside a dry enclosure.
Designed and tested to EN/IEC 60947-2, EN/IEC 60947-1, GB/T 14048.2, and JIS C8201-2-2. IK07 impact resistance means it withstands a 2 J hammer blow — robust for panel installation. The toggle control gives positive contact indication so you can visually confirm the contact position.