Yueqing City Liu Shi Yu De Electrical Appliance Factory

Purpose and scope of application

Shell-type current-limiting circuit breaker (hereinafter referred to as circuit breaker, commonly known as air switch) is suitable for AC. Under normal circumstances, the circuit breaker can be used as infrequent switching of lines and infrequent motors respectively. For starting, it can ensure that the user is completely disconnected from the power supply to ensure safety, thereby solving the disadvantage of non-zero neutral current that cannot be overcome by any other circuit breaker. Distribution circuit breakers are used for distribution in distribution networks Electric energy, and can be used as overload, short-circuit and under-voltage protection for lines and power equipment. Circuit breakers for protecting motors are used in distribution networks to break the starting and running of squirrel-cage motors and as overload, short-circuit and under-voltage protection for motors. The product complies with/standards
! Applicable working environment
The upper limit of the ambient air temperature is +℃, the average ambient air temperature does not exceed +℃, the lower limit of the ambient air temperature is ℃, and the altitude of the installation site does not exceed the dye level. The vertical inclination of the grade does not exceed ℃. It is in a medium with no explosion risk in a place where there is significant shaking and shock vibration, and there is no gas and dust (including conductive dust) in the medium that is enough to corrode metal and destroy insulation. The relative humidity of the air in a place where there is no rain or snow attack. When the ambient air temperature is +℃, it does not exceed the monthly average maximum relative humidity of the wettest month, which can have higher relative humidity at lower temperatures. At the same time, the monthly average minimum temperature of that month is +℃, and taking into account the temperature Changes occur in condensation on the surface of the product.