Specifications Parameter Specification Product Range Compact NS Device Type Selective Molded Case Circuit Breaker (MCCB) Model C120H-S Pole Configuration 4-Pole (4P) Rated Current (In) 100 Amperes (A) Frame Size 120A Trip Unit Type Thermal-Magnetic (C curve) Rated Operational Voltage (Ue) 400V AC (3P+N) Rated Insulation Voltage (Ui) 690V AC Rated Ultimate Breaking Capacity (Icu) H Version: 25 kA at 400V AC Rated Service Breaking Capacity (Ics) 75% of Icu (18.75kA at 400V AC) Short-Time Withstand Current (Icw) S Version Enhanced: 15 kA for 1 second (typical) Peak Withstand Current (Ipk) 2.2 × Icw (33kA peak) Tripping Curve C Curve (Standard industrial application) Selectivity Class Type 2 selectivity (full selectivity up to Icw) Mechanical Durability 10,000 operations Electrical Durability 5,000 operations at rated current Terminal Type Front screw terminals Connection Capacity Up to 70mm² copper cable Mounting Fixed mount (panel or DIN rail with adapter) Dimensions (W×H×D) Approximately 144×153×80mm Weight Approximately 2.5kg Ambient Temperature -25°C to +70°C (operation) Storage Temperature -40°C to +85°C Standards Compliance IEC/EN 60947-2, GB 14048.2 Protection Degree IP20 (installed in enclosure)