ELECTRIC CIRCUIT ARCLESS SWITCHING DEVICE Russian patent published in 2007 - IPC H01H9/30 

FIELD: electrical engineering; off-line power system supply mains.

SUBSTANCE: proposed electric circuit arcless switching device has contacts and normally open controlled semiconductor switch whose control electrode is connected to resistor first lead and through directly connected diode, to first lead of contacts forming first output terminal. Second lead of contacts is connected to first power lead of semiconductor switch forming control input of switch together with control electrode; capacitor is connected to this switch. Second power lead of switch forms second output terminal and second resistor lead is connected to first output terminal; inverse diode is connected in series with resistor.

EFFECT: enhanced reliability, simplified design.

2 cl, 3 dwg