Cable circuit breaker, has cam type manipulating lever functioning to permit free activation of triggering unit in locked state in which leakage indication button is pressed, where lever connects manipulating end element of unit to button

摘要

The circuit breaker has an alarm switch (12) to emit a leakage alarm by free activation of a triggering unit (16) when default current circulates along an electric path. A cam type manipulating lever (20) connects a manipulating end element of the unit to a leakage indication button (13). The lever locks and retains the button at a pressed position in a normal state and releases the button and ejects the button to a leakage indication position in response to activation of the unit. The lever permits free activation of the unit in a locked state in which the button is pressed.