This Acti9 iC40N product is a low-voltage miniature circuit breaker (MCB). It is a 3P+N circuit breaker with 3 protected poles and 20A in-rated current and a C tripping curve. The rated short circuit breaking capacity goes up to 10kA at 400VAC conforming to EN/IEC 60947-2 standard and 6000A at 400VAC conforming to EN/IEC 60898-1 standard. This product complies with both industrial standard EN/IEC 60898-1 and residential standard EN/IEC 60947-2. This miniature circuit breaker combines functions of circuit protection against short circuit and overload current, control, and isolation. The installation and cabling are simplified with a clip-on function as well as ease of maintenance. It has an electrical endurance going up to 20000 cycles and a mechanical endurance going up to 20000 cycles. The Ue operational voltage is 400 VAC. The Ui-rated insulation voltage is 440 VAC. The Uimp-rated impulse withstand voltage is 4 kV. The operating frequency is 50Hz or 60Hz. It can be mounted on DIN rail for modular installation. Its width is 6 pitches of 9 mm. Pollution degree is 3. The product colour is white (RAL9003). The dimensions are (W) 54mm x (H) 85mm x (D) 74mm. The weight is 345 g. According to the IEC 60529 standard, the degree of protection is IP20 and IP40 in the enclosure. The operating temperature is -25°C to 70°C. The storage temperature is -40°C to 85°C.