This Domae product is a residual current circuit breaker (RCCB). It is a 4P circuit breaker with 63A In rated current, 300mA earth leakage sensitivity and type AC protection class. This product protects against electrical shock by indirect contact and fire hazards. It performs the function of disconnection of electrical circuits in case of earth fault. It has control of on load electric circuit, already protected against overloads and short circuit. This Domae RCCD is dedicated for residential applications. This product is compliant with IEC 61008-1 standard. The (Im/IΔm) rated breaking and making short circuit capacity is 3000A. The (Inc/IΔc) conditional rated short circuit current is 6000A. It has an electrical endurance going up to 2000 cycles and a mechanical endurance going up to 5000 cycles. The Ue operational voltage is 400VAC. The Ui rated insulation voltage is 440VAC. The Uimp rated impulse withstand voltage is 4kV. The frequency is 50Hz. It is DIN rail mountable. The width in 9mm pitches is 8. The product colour is white (RAL9003). The dimensions are (W) 72mm x (H) 81mm x (D) 76mm. The weight is 350g. 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 -5°C to 40°C. The storage temperature is from -40°C to 60°C.