| 摘要 |
<p>An electrical switching apparatus, such as a subminiature circuit breaker (2), includes a housing assembly (4), separable contacts (6), an operating mechanism (8) having an actuator device (14) and a latching assembly (40), a first trip device (10) for tripping open the separable contacts in response to an overcurrent condition, and a second trip device (12) for tripping open the separable contacts (6) in response to an arc fault, a ground fault or a remotely transmitted signal. The subminiature circuit breaker (2) includes a reset solenoid (50) and a trip solenoid (60). The resent solenoid (50) is coupled to the actuator device (14), and includes a coil (52) operable to electrically reset the separable contacts (6). The trip solenoid (60) is coupled to the latching assembly (40), and includes a coil (52) operable to move the catch lever (42), thereby electrically tripping open the separable contacts (6).</p> |
