FIELD: low-voltage circuit-opening devices for low-voltage switchgear and control gear, and control stations.
SUBSTANCE: proposed device characterized in elimination of electric arc and overvoltage in the course of switching its contacts and in electromagnetic compatibility with electronic and microprocessor units of low-voltage switchgear and control gear has first and second power terminals, STOP, START 1, and START 2 control buttons, auxiliary make and break contacts, starting windings of FORWARD and REVERSE contactors, four-diode bridge rectifier, overvoltage limiters, and current-limiting component.
EFFECT: enhanced reliability and speed of contactor.
1 cl, 5 dwg
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SU997212A1 |
