Title:
瞬時トリップメカニズムを有する配線用遮断器
Document Type and Number:
Japanese Patent JP5426516
Kind Code:
B2
Abstract:
Disclosed is a molded case circuit breaker having an instantaneous trip mechanism capable of instantaneously breaking a circuit upon occurrence of a fault current, the circuit breaker comprising: a main circuit unit (21, 22, 23) present in a lower compartment (20) of the molded case circuit breaker, and configured to open or close a circuit by having a stationary contactor (21) and a movable contactor (22) rotatable to contact with or separated from the stationary contactor; a switching mechanism (50) present in an upper compartment (10) of the molded case circuit breaker, and having an open position where the switching mechanism is connected to the main circuit unit to drive the main circuit unit to open a circuit, and a closing position where the switching mechanism drives the main circuit unit to close a circuit; an instantaneous trip mechanism (1, 2, 3) present in the upper compartment, and operating by an electromagnetic attraction in response to generation of a fault current on a circuit so as to trigger the switching mechanism to the open position; and an intermediate insulation barrier (60) installed between the upper compartment and the lower compartment for electrical insulation by partitioning the lower compartment having the main circuit unit and the upper compartment having the instantaneous trip mechanism and the switching mechanism.
Inventors:
Park Kiho
Application Number:
JP2010233853A
Publication Date:
February 26, 2014
Filing Date:
October 18, 2010
Export Citation:
Assignee:
LSIS CO., LTD
International Classes:
H01H73/36; H01H73/06
Domestic Patent References:
| JP10223118A | ||||
| JP2005251757A | ||||
| JP5334951A | ||||
| JP2009135115A |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tomohiro Minamiyama
Akira Kawai
Kenichi Nakamura
Jun Tsuruta
Tomohiro Minamiyama
Akira Kawai
Kenichi Nakamura