FIELD: electricity.
SUBSTANCE: electric switch comprises a movable contact (108, 110, 112) and a fixed contact (104, 106) for contacting with the movable contact (108, 110, 112), wherein the switch further comprises one or more damping plates (122) and a permanent magnet (132) to direct the arc which is formed when the contacts are disconnected from each other, to the damping plates (122), while the damping plate (122) has a base section (464) and side sections (460, 462) extending from the base section (464) and the permanent magnet (132) placed behind the damping plate (122) so that the base of the damping plate (122) is located between the magnet and the plate damping region, which is the region between the side sections (468, 470) of the plate (122). According to the invention, the permanent magnet (132) is arranged to direct the arc to one of the side sections (468, 470) of the damping plates (122).
EFFECT: increased efficiency and durability of the switch.
13 cl, 5 dwg
Authors
Dates
2017-10-12—Published
2013-04-08—Filed