| 摘要 |
<p>Electrical device comprising an even number of fixed contacts (2,3,4,5) arranged in a frame (1). Every second fixed contact serves as support for a mobile contact (7,8) having arms of length at least equal to the distance between the contact serving as support (2,4) and one of the neighbouring fixed contacts (3,5). A rotary cam (9) supports elastic fingers (10,11) arranged so as to bear on these arms of the mobile contacts. Applicable to circuit breakers and commutators operating without significant load. <IMAGE></p> |
