Medium voltage switchgear with position indicator

摘要

The circuit breaker includes a housing having a panel or access door (10) enclosing the three poles of a circuit breaker, contactor or switch. These poles are mounted on a common spindle, rotating about an axis (14), to produce the circuit breaking action. The access door has a porthole (11), enabling part of a face (5A) of an inner enclosure (5), to be seen. This enclosure face has an opening (12), for viewing a mechanical indicator ((13,13A) of the open or closed state, of the switch. The indicator has segments (21') on its surface, with two complementary segments (23',23'') on the enclosure face. These segments are visible through the porthole, centred about the spindle axis. Housing segments (25',25'') may provide additional fixed indications. IMAGE