HG30系列熔（róng）断器式隔离器，额定电压至交流400(380)V，额定电流（liú）至50A，适用于有高短路电流的配电电（diàn）路和电动机电路中，作为电（diàn）源隔离器并（bìng）作电路过载和短路保护之用。

本系列隔离器由插座、接线端子、熔断体、手柄、外壳和卡（kǎ）板等组  成，所有带（dài）电部分均装在外壳内，不外露。

Series HG30 fuse-disconnector with rate voltage up to a.c. 400V, and  rated current up to 100A is mainly used in the lighting and motor circuits as  the power source isolator and for protection from overload and short-circuits.  This series fuse-disconnector is composed of fuse-link and sockets,  terminals, handle, and case. All live parts are enclosed in the case.