The paper presents two kinds of the straight type polarized magnetic system that can be used in contactor, breaker and hybrid electrical appliance, and analyzed the working principle.
Reduction in parts Inventories and Costs: the simplified design of the vacuum circuit breaker or contactor has up to 50% less parts than the equivalent air magnetic equipment.
减少在零件存货和费用：真空开关或接触器的被简化的设计有50%较少部份比等效空气磁性设备。
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The utility model relates to a common used low voltage appliance, that is the contactor of the permanent magnetic operational electric magnet combination.