Terasaki E125 NJ 3 50 E125-NJ TemBreak2 circuit breaker 3P 20AFC

Basic Electrical Parameters - **Rated Current (In)**: 125A, for long - term stable operation without overheating. - **Number of Poles**: 3 poles, for three - phase circuit protection. - **Tripping Characteristics**: "NJ" with standard curve, including overload long - delay, short - circuit short - delay and instantaneous tripping. Voltage - related Parameters - **Rated Working Voltage (Ue)**: 400V, for common industrial and commercial three - phase AC systems. - **Rated Insulation Voltage (Ui)**: 690V, to ensure good insulation above Ue. - **Rated Impulse Withstand Voltage (Uimp)**: 8kV, to resist lightning - like overvoltages. Short - circuit Breaking Capacity Parameter - **Rated Short - circuit Breaking Capacity (Icn)**: 50kA, the max short - circuit current it can cut off. - **Rated Operating Short - circuit Breaking Capacity (Ics)**: 75% of Icn (37.5kA), allowing normal post - short - circuit operation. Other Electrical Parameters - **Power Loss**: A few to over ten watts, lower loss means higher efficiency. - **Power Factor**: 0.2 - 0.5 (for different short - circuit tests), for short - circuit performance evaluation.