The Minmum Circuit Breaker with Full Current Selectivity Protection

Ding Gaofeng　Xue Han　Zhao He　Zhou Jian（Foretech Electric Appliance （Jiangsu） Corp., Ltd., Suzhou 215031，Jiansu Province，China）

Abstract The operating features, principle, product characteristic and typical application of minmum breaker （F TB1） with selectivity protection are presented，and the principle of full current selectivity protection of F TB1 is described. 

Key words　Minmum circuit breaker　Full current selectivity protection　Operating principle　Application range

摘　要　介绍了带选择性保护的微型断路器（FTB1）的动作特性、动作原理、产品特点及典型应用，阐述了 FTB1 实现全电流选择性保护的原理。

关键词 微型断路器 全电流选择性保护 动作原理 适用范围