General Description GCK Low-wiltage withdrawable awitchager is a newtype low-voltage complete switchgear with foreign advanced techniques,it is meeting the requirements of loadability expansion,computer intertacing,powercontrol centralization.easy assembly and maintenance.It meets the requirements of IEC439-1《Low-voltage complete switch equipment and controller》GB7251《Low-voltage complete switch equipment and controller》JB/T9661《Low-voltage withdrawble switch eq uipment》standard. Technical datas rated insulation voltage 660V rated operating volting/main circuit/auxiliary circuit 380,660V horizontal busbar rated current ≤3150A vertical busbar rated current 1200A rated short time withstand current（1S） 50KA rated short time peak current 105KA protection degree IP30,IP40