| 摘要 |
<P>PROBLEM TO BE SOLVED: To make it possible to prevent the adhesion of dust on a main bar and surface deterioration, and to enable heat generated at the main bar to be radiated. <P>SOLUTION: Heat radiation openings 16 communicated with airflow passages 14 formed in the dummy breaker body 1 are provided at portions located between each main bar fitted portions 12a provided at a power supply side plate portion 12 of the dummy breaker body 1. <P>COPYRIGHT: (C)2007,JPO&INPIT |
