High breaking miniature circuit breaker
The utility model relates to a high breaking miniature circuit breaker, which comprises a shell, and an operating mechanism, an electromagnetic release, a bimetallic strip, a moving contact, a static contact and an arc extinguishing system which are arranged in the shell, the arc extinguishing syste...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model relates to a high breaking miniature circuit breaker, which comprises a shell, and an operating mechanism, an electromagnetic release, a bimetallic strip, a moving contact, a static contact and an arc extinguishing system which are arranged in the shell, the arc extinguishing system comprises an arc extinguishing chamber arranged in the shell, an arc striking sheet arranged between the static contact and the arc extinguishing chamber, and an arc striking plate arranged between the bimetallic strip and the arc extinguishing chamber, an arc striking channel is formed between the arc striking sheet and the arc striking plate, and the arc striking channel is communicated between the moving contact and the arc extinguishing chamber. The arc extinguishing chamber comprises two flash barriers, a plurality of arc extinguishing grid sheets respectively arranged between the two flash barriers, and an arc striking and extinguishing grid arranged between the two flash barriers corresponding to the middl |
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