For years, AC contactor has been using ordinary electromagnetic, its performance should be said to be relatively stable, but in the long-term using, it also exposed some problems, such as: coil burned easily, contacts welded easily, core pull error with large noise. Our company developed and produced the permanent magnet AC contactor solve the above problems. permanent magnet AC contactor consists of three parts, Housing, magnets, contact arc extinguishing system. Take the JNYC series of permanent magnet AC contactor sample, this series of permanent magnet AC contactor is a straight-acting, double-break, three-dimensional arrangement, in the upper, there are auxiliary contacts, the main contact and arc extinguishing system which fixed by thermosetting plastic shell , the thermosetting plastics is in the lower,

Installing permanent magnet drive mechanism, the buffer unit, in addition to mounting holes in the base, there is a lock for rail mounting, can be mounted on a standard IEC wide cap-shaped mounting rails, easy assembly and disassembly. This series of permanent magnet AC contactor contacts arc extinguishing system uses a simple on-off arc extinguishing chamber and the U-shaped iron plates to arc extinguished, the arc extinguishing effect is good, contactor is with silver based alloy contacts, Arc extinguishing system is equipped with an anti welding wear-resistance contact material to make the products with long electrical life, the auxiliary contacts can be any combined freely. The permanent magnet AC contactor which with a permanent magnet drive mechanism to replace the traditional magnet drive mechanism to form a new type of micro-power consumption contactors, its working principle is that magnet of same polarity will repel each other, different polarity will attract each other. Since the polarity of permanent magnet mounted on the contactor linkage is fixed,  the soft iron fixed on the base is under external control signal, with an electronic module to produce ten to twenty milliseconds positive and negative pulse current, which to make the soft iron have different polarities, face to permanent magnet side (to be set N pole), pull is the S pole, release is N pole, maintained by the permanent magnet, so that the main contacts achieve pull, hold, release purposes. Since the electronic module controlling can be set release voltage value (power off voltage is zero) according to the site requirements, and also can generate pulse current delay some time to achieve low-voltage delayed release or power off functions, to avoid of the interference from the voltage fluctuations, achieve the purpose of stabilizing production system.

The main features of permanent magnet AC contactor is:

① Avoide of power grid disturbances, no chattering, high reliability, under the same conditions, service life is three-five times of CJ20 series, overcome its poor reliability, coil easy to burn, contacts easy to weld and other shortcomings;

② Effective energy-saving, JNYC series AC contactor average annual electricity 3. 99kWh / units, while CJ20 series AC contactor average annual electricity consumption is up to 885. 6kWh / unit;

③ No temperature rising, no noise, due to the permanent magnet AC contactor, no electromagnetic coil, no holding current, only the electronic module operating current (0. 6 ~ 1. 5mA), so no temperature rising, and it is no AC steel core, short-circuit, so to avoid the core stuck, easily burned on low voltage.

④ Can choose release voltage, which improve the working stability under the voltage fluctuations.

⑤ With the unique time delay release function, so that can avoid the interference of voltage fluctuations to achieve the purpose of stabilizing production system.