This product is an Acti9 RCCB-ID residual current circuit breaker (RCCB). It is a 4P circuit breaker with 125A current rating, a sensitivity of 100mA with an AC type protection class. This product protects against electrical shock by indirect contact and fire hazards. The status of the product is indicated via the 3 position toggle and a front panel indicator. The Acti9 RCCB-ID ensures protection in all industrial and tertiary buildings. This product is compliant with IEC 61008, IEC 60947-1 and IEC 60947-3 standards. The (Im/IΔm) rated breaking and making short circuit capacity is 1250A. The (Inc/IΔc) conditional rated short circuit current is 10kA. The mechanical endurance is going up to 5000 cycles and the electrical endurance is going up to 2000 cycles. The U operational voltage is 400VAC. The Ui rated insulation voltage is 440VAC. The Uimp rated impulse with stand voltage is 4kV. The frequency is 50Hz or 60Hz. It is DIN rail mountable. The width in 9mm pitches is 8. The product color is light gray (RAL7035). The dimensions are (W) 72mm x (H) 86mm x (D) 76mm. The weight is 420g. It has an IP20 degree of protection (as per IEC/EN 60529 standard) and becomes IP40 once in modular enclosure. The operating temperature is from -25°C to 40°C. The storage temperature is from -40°C to 85°C.