Patent ID: 8829380

Claim:
Arc chute for a medium voltage circuit breaker, comprising: a housing; two stacks of plural substantially parallel metal plates arranged in the housing, the two stacks defining a first axis in parallel to a stacking direction; an arc space arranged in the housing for allowing an arc to expand therein; and at least two arc quenching plates respectively disposed in a corresponding one of the stacks in the housing, the arc quenching plates having at least one surface with a surface plane extending parallel to the first axis, wherein a second axis traverses in parallel to the metal plates of the two stacks and the arc space is substantially orthogonal to the first axis, wherein the surface plane of the at least one surface of the arc quenching plates extends parallel to the second axis, and wherein one of the arc quenching plates is respectively arranged at each sidewall of the housing in the arc space between the metal plates of a first one of the stacks and a second one of the stacks.