Title:
低圧動力三相用ブレーカ
Document Type and Number:
Japanese Patent JP6681938
Kind Code:
B2
Abstract:
To provide a low-pressure power three-phase breaker with a built-in phase detection function such that the confirmation of the phase arrangement of the three-phase three-wire power line can be performed easily and safely.SOLUTION: A housing 10 of a low-pressure power three-phase breaker 100 that incorporates a circuit breaker 13 that shuts off a load 2 from a three-phase three-wire circuit 12P to which three-phase AC is supplied includes a phase detection circuit 17 that detects the phase order of the three-phase three-wire circuit 12P, and a display unit 18 that displays the phase detection result by the phase detection circuit 17 so as to be visible from the outside of the housing 10.SELECTED DRAWING: Figure 2
Inventors:
Yasutaka Shiraishi
Application Number:
JP2018091333A
Publication Date:
April 15, 2020
Filing Date:
May 10, 2018
Export Citation:
Assignee:
Usui Denki Co., Ltd.
International Classes:
H01H83/02; G01R29/18; G01R31/50
Domestic Patent References:
| JP4164263A | ||||
| JP2011108455A | ||||
| JP2013182680A | ||||
| JP2011108548A | ||||
| JP2009293935A |
Attorney, Agent or Firm:
Akira Koike