Patent ID: 6278619
Filing Date: 2001-08-21
Classification: H01H

Abstract:
Electrical disconnector (1) for a alternating low voltage electrical installation provided with at least two phase conductors with or without neutral conductor, comprising one disconnecting module (3) per conductor and one joint control module (2) provided with a mechanism for operating said disconnecting modules, each disconnecting module comprising at least one input terminal (30) connected to a fixed contact (31), one output terminal (32) connected to a fixed contact (33), another two fixed contacts (31', 33') connected to one another by a bridge or a fuse, forming with the other fixed contacts two pairs of fixed contacts and two moving contacts (35, 36) associated respectively with a pair of fixed contacts, the control module (2) comprising at least one control shaft (23) coupled to an operating handle, this shaft crossing said disconnecting modules (3) and bearing at least one cam (50) coupled to at least one translation moving element (40) coupled to said moving contacts (35, 36) to move them from a first stable position called the engaged position to a second stable position called the released position, wherein each moving contact (35, 36) comprises two contact surfaces (38) arranged in substantially perpendicular planes, and the fixed contacts (31, 31' and 33, 33') of the same pair are arranged in substantially perpendicular planes so that their respective contact surface (37) is placed facing the corresponding contact surface (38) provided on said moving contact (35, 36) when it is in the engaged position and each moving contact (35, 36) moves in radial translation in relation to the control shaft (23) in a substantially perpendicular direction (F) to a straight line passing through its two contact surfaces (38).