Title:
回路遮断器
Document Type and Number:
Japanese Patent JP4924374
Kind Code:
B2
Abstract:
A circuit breaker with overload and short-circuit protection functions for a motor, on which is mounted a thermally actuated overload tripping device including an adjustment dial to set a value corresponding to a rated current value of the motor on a scale. The dial has a standard setting pointer mark and a correction setting pointer mark side-by-side along a perimeter. The standard setting pointer mark applies to using the circuit breaker as a single item. The correction setting pointer mark applies to using a number of circuit breakers arranged in a line in close contact with each other. By setting a mark selected according to the arrangement of the circuit breaker at the rated current value, the steady state current value of the tripping device can be adequately set to correspond to the rated current value of the motor.
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Inventors:
Kawao Hisao
Eihiro Isamu
Shimizu Genhiro
Eihiro Isamu
Shimizu Genhiro
Application Number:
JP2007296199A
Publication Date:
April 25, 2012
Filing Date:
November 15, 2007
Export Citation:
Assignee:
Fuji Electric Equipment Control Co., Ltd.
International Classes:
H01H73/12; H01H73/06; H01H73/16; H01H73/22
Domestic Patent References:
| JP2003100195A | ||||
| JP53100480A | ||||
| JP2002170475A | ||||
| JP63207024A | ||||
| JP60172258U |
Attorney, Agent or Firm:
Yoichi Matsumoto