FIELD: electricity.
SUBSTANCE: invention is referred to unidirectional direct-current contactor with double disconnection having two contact pads, each pad is equipped with one fixed contact and one movable contact, at that the movable contacts are placed at a jumper and at disconnection of the contact pads a switching electric arc is formed at each of them, and an electric arc quencher and a displacing device for displacement of at least one switching electric arc from the respective contact pad. The shunting guard is placed close to the movable contact of the first contact pad; the jumper and the shunting guard are insulated from each other; the shunting guard is connected by potential to the fixed contact of the second contact pad so that at the first contact pad by displacement made by the displacing device the first switching electric arc jumps from the jumper to the shunting guard.
EFFECT: providing small dimensions and low costs for manufacturing of the device.
10 cl, 1 dwg
Authors
Dates
2015-01-20—Published
2011-05-12—Filed