Explosion-Proof Limit Switch VPV-1A11 for Remote Control in Heavy Machinery

Explosion-proof track switches are designed for remote control of electric drives of machines and mechanisms in stationary installations and on mobile vehicles. The switches are designed for remote control of electric drives of machines and mechanisms in stationary installations and on mobile means of land and sea transport, where they are actuated by control stops, as well as for signalling associated with the said electric drives or other electrical devices. The switches are designed for operation both in coal and shale mines, dangerous by gas and dust, and in underground workings of coal mines and mines, including dangerous by gas and coal dust, as well as their surface structures, in explosive zones of production, means of transport and storage of products of chemical, oil refining, gas and other industries.

VPV-1A consists of a cover and a body. They are made: the body - of aluminium alloy AL-2 GOST 1583-89, the cover - of press-material AG-4S GOST 20437-75. In VPV-1A is installed one block contact 1p+1z with a drive pusher.