万能转换开关 meaning in English

universal change-over switch
universal switch

Lw95 series change - over switch in ships
Lw95系列船用万能转换开关
Inside is installed ac contactor , thermal replay , self - settable conversion switch
内装交流接触器、热继电器、自复位万能转换开关或按钮等。
The inside installment elements are mainly shift switches , buttons , current meters and indicator
内装元件主要有：万能转换开关、按钮、电流表、指示灯等。