| 摘要 |
The invention proposes an electrical service device, in particular line circuit breaker or motor circuit breaker, having a housing having connecting areas and connection means ( 2, 3 ) for the purpose of connecting busbars and/or connection lines on both end sides and, having at least one switching contact having a fixed and a movable contact piece ( 4, 6 ), an arc ( 13 ) being produced in an arc prechamber area ( 7 ) between said fixed and movable contact pieces ( 4, 6 ) in the event of a disconnection. The arc enters a current-limiting arc-quenching device ( 12 ), in particular an arc splitter stack, via arc guide rails ( 14, 16 ), at least one insulating plate ( 20, 25+26 ) being arranged at the edge of the arc-quenching device ( 12 ). The insulating plate ( 20, 25+26 ) is fixed to the end section of an arc guide rail ( 14 ) by means of a fixing clip ( 22 ).
|
