VACUUM CONTACTOR Russian patent published in 2009 - IPC H01H33/666 

FIELD: electrical engineering.

SUBSTANCE: invention relates to low-voltage and high-voltage electric devices and can be used in electric circuits for remote controlling electric actuators and networks. In the vacuum contactor essentially containing three vacuum arc-quenching chambers, an electromagnet, housing, insulating lever with an electromagnet armature, insulating lever pin, heelpiece, opening spring, lever arresting device and a unit of auxiliary contacts with a button, according to the invention, the housing has projections on sidewalls and the ends of the lever pin are mounted on these projections. One end of the lever pin is rigidly fixed in the projection of the sidewall of the housing. The insulating lever is integral and has anti-friction bushings, rigidly fixed in it by press-fitting. The insulating lever is mounted on an axis with possibility of rotation on these bushings.

EFFECT: increased reliability and durability of the contactor due to protection of the lever pin and mounting bores of the housing from wearing.

2 cl, 3 dwg