2013年9月10日星期二

The most widely used low-voltage electrical

Can be achieved without breaking the arc of the new AC contactor. Contactor is considered a long work system, use one of the most widely used low-voltage electrical appliances, but the general contactor its  air circuit breaker  system (dynamic and static contact and arc chute, etc.) are present conventional design can not be  mcb circuit breaker . Its contacts in the circuit breaking current, will inevitably produce an arc, while the AC contactor electrical life of reason is far less than its mechanical life,  electric meter  the process of breaking arc presence in, no arc breaking aspect also in the past, a lot of research in this area, the same as reliability, cost, program complexity and other reasons, molding products on the market is also rare.

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