Molded case circuit breaker
AssigneeLs Electric Co., Ltd.
InventorSuyang Song
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a molded case circuit breaker, and particularly, to a molded case circuit breaker having an enhanced arc protecting function. The molded case circuit breaker includes: a power side terminal portion provided at a front side of an enclosure and having a fixed contact arm; a finger assembly coupled to the fixed contact arm, and disposed on a front surface of the power side terminal portion; and a base bus supporter coupled to an upper surface and a lower surface of the power side terminal portion, and having a finger hole through which the finger assembly is exposed. The base bus supporter is provided with a protection unit configured to enclose the finger assembly around the finger hole.
Claims8
A molded case circuit breaker, comprising:
- a power side terminal portion provided at a front side of an enclosure, and having a fixed contact arm;
- a finger assembly coupled to the fixed contact arm, and disposed on a front surface of the power side terminal portion;
- and
- a base bus supporter coupled to an upper surface and a lower surface of the power side terminal portion, and having a finger hole through which the finger assembly is exposed,
- wherein the base bus supporter is provided with a protection unit configured to enclose the finger assembly around the finger hole,
- wherein a partition wall for phase-to-phase insulation is provided in the base bus supporter, and
- wherein the protection unit is provided between the partition wall and a further partition wall, or between the partition wall and a side wall.
Dependencies are inferred from the claim text.