The series circuit breaker has a protective function against short circuits and overloads. And are used in lighting distribution systems in industry, commerce, and dwelling. And protect fractional electric motors. They also have many merits of high breaking capacity, good reliability of sensitive action, convenient multi-pole assorting, long use life, etc. They are mainly adapted to the circuit of AC 50/60Hz,230V in single pole, 400v in double, three, and four poles for protecting overload and short circuits. Meanwhile, they are also used in turning on or off the electric apparatus and lighting circuit under normal conditions. lt conforms to lEC60898.
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