This Easy9 product is a residual current circuit breaker (RCCB). It is a 2P circuit breaker with a 40A in-rated current, 30mA earth leakage sensitivity, and AC type protection class. This product protects against electrical shock from direct or indirect contact and fire hazards. It also has protection against fire hazards due to the persistent earth fault current. This product has positive contact indications with a fault-tripping indication on the front panel by the position of the handle (0-I engraved). This is dedicated to the residential and small commercial building market segments. This product is compliant with the 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. It has an electrical endurance of up to 2000 cycles and a mechanical endurance of up to 5000 cycles. The Ue operational voltage is 230 VAC. The Ui-rated insulation voltage is 440 VAC. The Uimp-rated impulse-withstand voltage is 4 kV. The frequency is 50 Hz or 60 Hz. It is DIN rail-mountable. The width of 9-mm pitches is 4. The product color is light grey (RAL 7035). The dimensions are (W) 36mm x (H) 82mm x (D) 72mm. According to the IEC 60529 standard, the degree of protection is IP20 and IP40 in the enclosure. The operating temperature is from -5°C to 60°C. The storage temperature ranges from -40°C to 85°C.