ZBFK series low-voltage composite switch is an intelligent energy-saving capacitor switching switch carefully developed for the defects of SCR and AC contactor in the application of low-voltage reactive power compensation. It is suitable for the rapid switching of low-voltage reactive power compensation capacitors cut control.

Working principle is to connect the thyristor module (1600V reverse double-well connection type) in parallel with the AC contactor (magnetic latching relay), and through the analysis and control of the internal chip, automatically find the best input (cut) point, so that the composite switch is The moment of input and removal has the advantage of zero-crossing switching of the thyristor, and it has the advantage of low power consumption of the contactor during normal operation.Composite switch has significant advantages such as no impact, low power consumption, and long life. It can replace contactors or thyristor switches and is widely used in the field of low-voltage reactive power compensation.