This MAX9 product is a residual current circuit breaker (RCCB). It is a 2P RCCB with 40A In rated current, a sensitivity of 30mA with A type protection class. The earth-leakage protection time delay is instantaneous. The (Im/IΔm) rated breaking and making short circuit capacity is 500A. The (Inc/IΔc) rated conditional rated short circuit current is 6kA. The electrical endurance going up to 4000 cycles and mechanical endurance is going up to 10000 cycles. This product protects against electrical shock by direct or indirect contact and fire hazards. It is also compulsory for all equipment in bathrooms, outdoors. As an high sensitivity residual current circuit breaker, it is recommended for all power sockets. It has a RCM quality lable. The Ue rated operational voltage is 240VAC. The operating frequency is 50Hz. The Ui rated insulation voltage is 440VAC. It has a Uimp rated impulse withstand voltage of 4kV. It can be mounted on DIN rail for modular installation. The width in 9mm pitches is 4. The dimensions are (W) 36mm x (H) 85mm x (D) 75mm. The product colour is white (RAL9003). The product weight is 210g. According to IEC 60529 standard, the degree of protection is IP20. The pollution degree is 2. The operating temperature is from -25°C to +70°C. The storage temperature is from -40°C to +85°C. This product is complies with IEC 61008-2-1 and EN/IEC 61008-1 standards.