Title:
SHAPE MEMORY ALLOY ACTUATED CIRCUIT BREAKER
Document Type and Number:
Japanese Patent JP2012142278
Kind Code:
A
Abstract:
To provide a thermal trip unit for a circuit breaker having a primary conductive path for conducting a load current.
The thermal trip unit comprises a shape memory alloy (SMA) member adapted to change from a first shape to a second shape at a predetermined thermal condition, a holding member coupled electrically in series with the circuit breaker primary conductive path, and arranged to operatively support the SMA member, in which the SMA member is configured and disposed within the circuit breaker to trigger a trip response of the circuit breaker at the predetermined thermal condition.
Inventors:
BRIAN FREDERICK MOONEY
THOMAS FREDERICK PAPALLO
KUMFER BRENT CHARLES
THOMAS FREDERICK PAPALLO
KUMFER BRENT CHARLES
Application Number:
JP2011279316A
Publication Date:
July 26, 2012
Filing Date:
December 21, 2011
Export Citation:
Assignee:
GEN ELECTRIC
International Classes:
H01H73/22; H01H71/14
Domestic Patent References:
| JPS57151125A | 1982-09-18 | |||
| JPS58182247U | 1983-12-05 | |||
| JPS57151125A | 1982-09-18 | |||
| JPS58182247U | 1983-12-05 | |||
| JPS61117443U | 1986-07-24 | |||
| JPH0574309A | 1993-03-26 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka