| 摘要 |
<p>A circuit interrupter with an optical indicator characterized by a housing, a stationary contact structure within the housing, a movable contact carrier structure within the housing and movable between open and closed positions relative to the stationary contact carrier, said carrier structure also being movable between remote and proximate positions of the lens, indicator means for observing the position of said carrier structure and including a lens in the housing and directed to said carrier structure, indicia on the surface of said carrier structure facing the lens and having two indicia portions, and the lens showing different indicia portions when the carrier structure is in remote and proximate positions, thereby indicating to an observer whether the circuit interrupter is in the open or closed circuit condition.</p> |
