Specifications General Product Type: Three‑Pole Circuit Breaker Series / Family: C120H Number of Poles: 3 (three phases) Trip Curve / Characteristic: Type D Rated Current: 100 A Mounting: Panel or switchboard installation Electrical Ratings Rated Operational Voltage (Ue): Designed for low‑voltage AC systems (e.g., ~230/400 V three‑phase) Rated Frequency: 50/60 Hz Breaking Capacity: Engineered for typical low‑voltage distribution fault levels Rated Insulation Voltage (Ui): Suitable for low‑voltage distribution insulation requirements Rated Impulse Withstand Voltage (Uimp): Designed to withstand standard transient overvoltages Protection & Trip Characteristics Overload Protection: Yes (thermal trip mechanism) Short‑Circuit Protection: Yes (magnetic trip mechanism) Tripping Behavior: Type D: Higher instantaneous trip threshold to accommodate large inrush currents without nuisance tripping Performance & Function Fault Interruption: Reliable clearing of abnormal current conditions Durability: Constructed for repeated operations and long service life Application: Protection of three‑phase feeders, motor circuits, and general distribution loads Mechanical & Environmental Terminal Connections: Screw or clamp type for secure conductor attachment Mechanical Durability: Designed for dependable performance under industrial conditions Installation Environment: Indoor electrical distribution panels and switchgear