MOLDED CASE CIRCUIT BREAKER WITH AN IMPROVED ARC GAS EXTERNAL VENTING SYSTEM
The invention relates to a molded-case circuit breaker having improved means for venting gaseous arc products. The gas venting means comprise venting slots (412) formed through a wall of the circuit breaker housing, and one-way valves (410) positioned in the slots so as to pass gaseous arc products...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The invention relates to a molded-case circuit breaker having improved means for venting gaseous arc products.
The gas venting means comprise venting slots (412) formed through a wall of the circuit breaker housing, and one-way valves (410) positioned in the slots so as to pass gaseous arc products to be vented from the housing, and to prevent the ingress of contaminants from the ambient. |
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