| 摘要 |
The present disclosure relates to a circuit breaker having a compact contact assembly structure, including a stationary portion; and a movable portion to be contact with or to be separated from the stationary portion, wherein the movable portion includes a puffer cylinder configured to temporarily store a compressible fluid; a moving main contact assembled to an end of the puffer cylinder; and a moving nozzle inserted into the moving main contact , and the moving main contact includes an internal protrusion protruded in a radial direction and separated in a circumferential direction from an inner surface thereof, and the moving nozzle includes an external protrusion protruded in a radial direction and separated in a circumferential direction on an external surface thereof, and the internal and external protrusions are alternately coupled to the puffer cylinder, respectively, by a fastening member along the circumferential direction. |
