Breakers circuit electric Sensitive protection - Leakage jump 10mA small leakage can also be induced, quickly disconnected, so that the protection is more sensitive.The strength of cold and heatwave is fully demonstrated. From icebergs to deserts, cold and heatwave can be used without worry.High quality selection of safe and reliable multiple detection flame retardant materials, high temperature resistance, strong flame retardant and yellowing resistance.
Breakers circuit electric The switch is convenient to operate and the humanized handle cover protects the finger to operate comfortably.A variety of specifications to choose according to needs, a variety of product specifications, a variety of residual operating current specifications to choose.A variety of specifications to choose according to needs, a variety of product specifications, a variety of residual operating current specifications to choose.
The breaking capacity of the Breakers Circuit Electric is an important indicator of the circuit breaker, which refers to the ability of the circuit breaker to safely cut off the fault current. It is generally divided into the rated ultimate short-circuit breaking capacity ICU and the rated operating short-circuit breaking capacity ICS. The breaking capacity has various specifications such as 35KA, 50KA, 60KA, 80KA, etc. However, the limit short circuit capacity of domestic miniature circuit breakers is generally between 4-6KA, and the breaking reliability is not high.
An important principle for choosing a circuit breaker is that the ultimate short-circuit breaking capacity of the circuit breaker is greater than the expected short-circuit current of the line. No matter what kind of circuit breaker, its ultimate short-circuit breaking capacity is greater than or equal to its operating short-circuit breaking capacity.
Working principle of circuit breaker
The working principle of the circuit breaker is that when the short circuit occurs, the magnetic field generated by the large current overcomes the reaction spring, the tripping device pulls the operating mechanism action, and the switch trips instantaneously. When the overload, the current becomes larger, the heat intensifies, the bimetal deformation to a certain extent to promote the action of the mechanism, the greater the current, the shorter the action time. The circuit breaker has the electronic type, uses the transformer to collect the current size of each phase, compared with the set value, when the current is abnormal, the microprocessor sends out a signal, so that the electronic trip drives the operation mechanism action.
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