Specifications Parameter Specification Product Range Compact NS Device Type Molded Case Circuit Breaker (MCCB) Model Series C120H Pole Configuration 4-Pole (4P) Rated Current (In) 80 Amperes (A) Frame Size 120A (maximum) Trip Unit Type Thermal-Magnetic (C curve) Rated Operational Voltage (Ue) 400V AC (3P+N) / 230V AC (1P) Rated Insulation Voltage (Ui) 690V AC Rated Ultimate Breaking Capacity (Icu) H Version: 25 kA at 400V AC (typical) Rated Service Breaking Capacity (Ics) 50-75% of Icu (depending on version) Short-Time Withstand Current (Icw) Typically 10-15kA for 1 second Tripping Characteristics C Curve: Thermal-magnetic with standard tripping curve Mechanical Durability 10,000 operations Electrical Durability 5,000 operations at rated current Terminal Type Screw terminals (front connection) Connection Capacity Up to 50mm² copper cable Mounting Fixed mount (panel or DIN rail with adapter) Dimensions (W×H×D) Approximately 144×153×80mm (4P version) Weight Approximately 2.2kg 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 (when installed in enclosure)