gm8 series plastic shell type circuit breaker-凯发一触即发
model and meaning
applicable environment and installation condition
● the altitude does not exceed 2000 m installation site；
● surrounding medium temperature is not higher than 40 ℃ and not lower than 5 ℃, 35 ℃ and average no more than 24 h ；
● installation site of air relative humidity when the temperature is 40 ℃ less than 50%;at lower temperatures can be to have a higher relative humidity, such as 20 ℃ at 90%.due to temperature change occasionally produce condensation special measures should be taken；
● pollution levels for level 3；
● circuit breaker main circuit and undervoltage tripping device for the installation of the category ⅲ, not connected to the main circuit of the auxiliary circuit and control circuit for ⅱ installation category；
● circuit breaker protection grade (iec 60947-1 standard) to achieve ip30, cancel after shield, up and down for ip20 protection grade。
● circuit breaker shall be installed in the medium without explosion danger, no enough to corrosion of metal and medium and damage the insulation of conductive dust and gas；
● circuit breaker shall be installed where there is no rain and snow hit；
● circuit breaker shall be installed according to the product specification。
● surrounding medium temperature is not higher than 40 ℃ and not lower than 5 ℃, 35 ℃ and average no more than 24 h ；
● installation site of air relative humidity when the temperature is 40 ℃ less than 50%;at lower temperatures can be to have a higher relative humidity, such as 20 ℃ at 90%.due to temperature change occasionally produce condensation special measures should be taken；
● pollution levels for level 3；
● circuit breaker main circuit and undervoltage tripping device for the installation of the category ⅲ, not connected to the main circuit of the auxiliary circuit and control circuit for ⅱ installation category；
● circuit breaker protection grade (iec 60947-1 standard) to achieve ip30, cancel after shield, up and down for ip20 protection grade。
● circuit breaker shall be installed in the medium without explosion danger, no enough to corrosion of metal and medium and damage the insulation of conductive dust and gas；
● circuit breaker shall be installed where there is no rain and snow hit；
● circuit breaker shall be installed according to the product specification。
the main technical parameter table
