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Intelligent low-voltage composite switch FK
QYFK series intelligent low-voltage composite switch is an intelligent environment-friendly low-voltage capacitor switching switch, which combines the advantages of silicon controlled rectifier and AC contactor. The working principle is to connect the thyristor and relay in parallel, so that the composite switch has the advantages of zero crossing thyristor switching at the moment of switching, and has the advantage of no power consumption of AC contactor during normal connection, making up for the shortcomings of SCR and AC contactor in low-voltage reactive power compensation application. The main advantages of this product are: after receiving the external control signal, through intelligent judgment, it can automatically find the best switching point to ensure zero crossing switching, small inrush current, no sintering due to electric shock, low power consumption, and voltage anomaly protection. Compared with similar products, its inrush current switching and safety reliability are greatly improved.

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