| 摘要 |
PROBLEM TO BE SOLVED: To prevent the indication on the upper surface of a breaker such as letters and marks, even in the case that it is formed by means of printing or the like, from being damaged by being scraped down by a shield plate by forming small protrusion on the upper face of a case so as to make a clearance between the indication surface for print or the like and the shield plate. SOLUTION: Provided to the surface of the top face 1 of a breaker case 3 that is to be a catching part of a shield plate 2 of a distribution board is an indication surface (indication surface for print or the like) 1a on which letters, marks and the like designating such as a neutral pole, a power source side, a load side are formed by means of printing or the like. In this case, the top face 1 is equipped with small protrusion 4; the small protrusion 4 catch a shield plate 2 of a distribution board on the top face 1 of the breaker case 3 so as to form a clearance between the indication surface 1a for print or the like and the shield plate 2. Thereby, the letters, marks and the like on the indication surface 1a for print or the like are prevented from being damaged by stopping the shield plate 2 from coming into contact with the indication surface 1a for print or the like. |
