| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an arc-extinguishing insulating material molding that is capable of generating sufficient pyrolysis gas for extinguishing an arc generated upon circuit interruption, suppresses an amount of generated gas to prevent a housing from being damaged and has heat resistance capable of enduring a temperature rise occurring at that time and pressure resistance capable of enduring an internal pressure rise, and further to provide a circuit breaker using the same. <P>SOLUTION: An arc-extinguishing insulating material molding used for a circuit breaker according to the present invention contains an inorganic filler B resolved at 350 to 1400°C in an amount of 5 to 50 wt.% and a matrix resin. <P>COPYRIGHT: (C)2013,JPO&INPIT |
