TERASAKI S100-GF 3P 40A Circuit breaker

S100 GF 40A 3P is a Terasaki circuit breaker. Here's a simplified introduction: Product Naming - **S100**: Represents the breaker's series in Terasaki's product line. - **GF**: Indicates ground - fault protection. It cuts off the circuit when leakage current exceeds the set value. - **40A**: The rated current, allowing it to stably carry 40A long - term. - **3P**: Three - pole design for three - phase circuits. Technical Parameters Electrical - **Rated Working Voltage**: 400V for industrial and commercial three - phase systems. - **Rated Insulation Voltage**: 690V to maintain insulation above normal voltage. - **Rated Impulse Withstand Voltage**: 8kV to resist lightning overvoltage. - **Short - circuit Breaking Capacity**    - **Icu**: Up to 25kA or more. After cutting, may not work normally.    - **Ics**: 50% - 100% of Icu, enabling post - fault normal operation. - **Leakage Action Current**: Commonly 30mA. Trips when reached. - **Leakage Action Time**: < 0.1s at 30mA to reduce shock risk. Mechanical - **Mechanical Life**: Over 20,000 opening/closing operations. - **Electrical Life**: Over 5,000 under rated conditions. - **Operation Mode**: Manual for on - site and emergency, electric for remote control.