开关插座，作为建筑电器附件，广泛应用于各种现代住宅、宾馆、办公场所、工程等所需电气线路中。开关件用于接通与分断一个或多个电路里的电流，插座用于电源或其它讯号源的转接与分断（与插头配合使用）。

•正常工作条件及安装条件
　　正常工作条件：额定电压交流250V，额定电流分16A、10A;三相四线插座额定电压交流440V,额定电流分16A、25A；
　　安装条件：
　　1、安装前应清理接线盒内污物，盒体无变形、破裂等易引起安
Switch socket, electrical accessories as construction, widely used in modern residential, hotel, office space, engineering, electrical lines needed. Switch parts for the connection and breaking one or more circuit current, socket for the power adapter or other signal sources and breaking (and plugs with use).

• normal operating conditions and installation conditions
Normal working conditions: rated voltage AC 250V, rated current points 16A, 10A; three-phase four-wire AC outlet rated voltage 440V, rated current points 16A, 25A;
Installation conditions:
1, the installation should be cleared before the terminal box of dirt, box no deformation and rupture easily lead to security