VACUUM CONTACTOR Russian patent published in 2006 - IPC H01H33/662 

FIELD: electrical engineering; ac high-voltage circuit-opening devices.

SUBSTANCE: proposed vacuum contactor has insulating case, vacuum arc-control chambers, electromagnetic operating mechanism, disconnecting spring, articulated joint, and insulating rotary lever that mounts plate with hole to pass movable current lead rod and hold-down spring. Articulated joint is disposed in space between movable current lead and rotary lever; hold-down spring abuts against stop on one end and against plate with hole affording easy movement of rod along its axis, on other end.

EFFECT: simplified design and enhanced reliability of contactor.

1 cl, 2 dwg