This is a Easy9 residual current circuit breaker (RCCB). It is a 4P circuit breaker with In rated current of 63A, AC type protection class and a 30mA earth leakage sensitivity. This product protects against electrical shock by direct or indirect contact and fire hazards. It also has protection against fire hazards due to persistent earth fault current. This product has a positive contact indications with fault tripping indication on the front panel by the position of the handle (0-I engraved). This is dedicated for residential and small commercial buildings market segment. This product is compliant with IEC 61008-1 standard. The (Im/IΔm) rated breaking and making short circuit capacity is 500A. The (Inc/IΔc) conditional rated short circuit current is 6000A. The electrical endurance is up to 2000 cycles. The mechanical endurance is 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 or 60Hz. It is DIN rail mountable. The width in 9mm pitches is 8. The product color is light grey (RAL7035). The dimensions are (W) 72mm x (H) 82mm x (D) 72mm. It has an IP20 degree of protection. It becomes IP40 once in modular enclosure according to IEC/EN 60529 standard. The operating temperature is from -5°C to 60°C. The storage temperature is from -40°C to 85°C.