| 摘要 |
The inventive differential switch comprises a fixed power contact (1), a pivotable power contact (2) a test contactor (15, 16, 17) and an automatic interruption conductive branch (10) connected to a connection terminal of the test contactor (15, 16, 17) which extends in a transversal direction with respect to the axis of rotation (8) of said pivotable contact (2). Said differential switch also comprises an automatic interruption blade (7) which is connected to the pivotable contact (2) and arranged with respect to the automatic interruption branch (10) in such a way that when the pivotable contact (2) is in the closed position thereof, said automatic interruption blade (7) is placed in front of the automatic interruption branch (10), and when the pivotable contact (2) is in the opened position thereof, the automatic interruption blade (7) is removed from the automatic interruption branch (10). |
