微型断路器，简称MCB（Micro Circuit Breaker/ Miniature Circuit Breaker），是建筑电气终端配电装置引中使用最广泛的一种终端保护电器。用于125A以下的单相、三相的短路、过载、过压等保护，包括单极1P，二极2P、三极3P、四极4P等四种。
由此，对微型断路器机构的装配尺寸链和关键尺寸公差进行了研究。
The mechanism of low voltage miniature circuit breaker is very complicate, thus its assembly dimension chain and the tolerance of critical dimensions are researched.
本实用新型还涉及包括所述灭弧室的灭弧系统、以及包括所述灭弧系统的微型断路器。
The utility model also relates to an arc extinguishing system which includes the arc extinguishing chamber and a miniature breaker which includes the arc extinguishing system.
微型断路器、漏电断路器及主开关可于组件上轻易拆除，提供简便的更换装配而不需拆除母线。
Easy removal of MCB, RCD or main incomer from an assembled unit, offering simple fitting of additional or replacement components without removal of the busbar.
应用推荐