Install incoming disconnect switch, incoming current meter, voltage meter ( switchable ) and incoming voltage indicator light.
安装进线刀开关 、 进线电流表 、 电压表 ( 可切换 ) 和进线电压指示灯.
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Three - phase power supply box protection by fuse - controlled disconnect switch; Fuse - controlled command circuit protection.
保险(丝)控制关断开关或三相电源保护; 保险(丝)控制操纵电路保护.
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