FCM1 Mold Case Circuit Breaker

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FCM 1 Series plastics shell breaker (hereinafter refered to be breakers)is designed with the rated insulation voltage of 800V,The breakers are fit for the power distribution electric grids and circuits of AC 50HZand with the rated pocrating voltage voltage up to 690v and rated current up to 1600A.they are interested for protecting the circuit from non-frequent switching and for protecting motors from non-frequent starting,in addition.they are also intended for protecting the circuits and powerequipment from damages arising from overload ,short circuit,under voltage .etc.as well as preventing the line and the power supply from damages.based on the breaking capacity(Icu) of rated limit short circuit,the breakers can be divided into C type (basic type),L type (standard type),M type(strong breaking capacity)and H type (strong breaking capacity)this breaker has some features such as small size,strong breaking capacity,short arcing over,distance and resist to vibrating etc.

breakers can be installed vertically or horizontally.

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Q:Is the zero line going through the circuit breaker?
Three-phase four-wire zero line is absolutely not allowed to go through the circuit breaker, because the zero line is broken, the line of all 220V appliances will withstand 380V line voltage and burned.
Q:What is the solution of the leakage circuit breaker always jumping?
Do not let the lighting lines and socket lines mixed, so that the socket circuit leakage switch will open the leakage protection switch to trip .
Q:Circuit breaker main circuit control power, how to wiring?
he blocking capacity is equal to the breaking current (the manual specifies the rated breaking current of the high voltage electrical appliance
Q:What are the differences between switches and circuit breakers?
the first isolation, and then the circuit breaker; sub-gate, the first disconnect the circuit breaker, and then disconnect the isolation switch.
Q:How to switch from the circuit breaker switch button, the difference is short circuit protection or overload protection?
The circuit breaker is called open SPACE> This is a switch that can automatically protect the low voltage distribution
Q:Is the circuit breaker in the circuit necessary?
When the air is open, it is not recommended to use the fuse, need to protect, open the three-phase at the same time off, such as with the fuse
Q:How long is the circuit breaker long delay time?
Switchgear. Circuit breaker according to its use is divided into high-voltage circuit breakers and low-voltage circuit breakers, high and low voltage line is more vague, generally more than 3kV called high-voltage electrical appliances.
Q:Circuit problem! Hurry Miniature Circuit Breaker!
After removing the above problems, you can turn off all the electrical equipment or pull out the plug, such as the circuit breaker also jump
Q:The specific function and operation mode of the auxiliary switch on the circuit breaker switch
High-voltage circuit breakers generally have a number of auxiliary contacts, their on-off and circuit breaker main contact the same (or vice versa), so the secondary circuit
Q:How to choose a circuit breaker for home and small office circuits
After installation wiring, press the leakage connector leakage test button, you can create a brief manual leakage to test whether the leakage of electrical action.

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