PURPOSE: To detect abnormal temperature of a conductive body even at a place in which discoloration of thermo-label can not be visually confirmed, by providing a switch gear abnormal temperature display device in the vicinity of a conductive body such as a conductive part of a main circuit equipment, and providing a light emitting body which generates light at on abnormal temperature of the conductive body exceeding a set temperature value.

CONSTITUTION: The switch gear abnormal temperature display device 18 is provided with a strip-shaped displacement body fitted to a conductive body such as a conductive part of a main circuit equipment, connection conductors 14, 17, and a main circuit branched conductor 12. The displacement body is made of a shape memory alloy, a bimetal, etc., and is displaced at a temperature exceeding a set temperature value of the conductive body. The displacement body is displaced at the abnormal temperature of the conductive body to bend a light emitting body to emit light, and the abnormal temperature of the conductive body is displayed. The light emitted from the light emitting body is visually confirmed by opening a front fan 2 or a back cover 4, or through a ventilation hole 6 or a peep hole 7.