| 摘要 |
According to the present invention, a cover assembly device of a circuit breaker couples a circuit breaker body to a front cover in a detachable hook type to easily perform a coupling work and a separating work of the front cover in order to not only improve mass production efficiency of an air circuit breaker, but also quickly perform a maintenance work by the easy performance. In addition, a coupling force of a coupling part, which couples the circuit breaker body to the front cover, is differently formed depending on a location to prevent the front cover from momentarily being damaged or catapulted even though an accident current is generated in an inside of the circuit breaker to increase internal pressure, thereby increasing reliability of the air circuit breaker and simultaneously preventing a secondary accident. |
