kyh12 mv switchboard-ag旗舰厅首页

product application: ais mv switchgear suitable for motor starting and distribution systems of industrial and commercial buildings, heavy industries, mines, railway and other fields.

special model kyh12s-1250k has same technical data with kyh12-1250, the width of enclosure is 550mm.

rated operating voltage (ue): 12kv

rated current (in): 1250/3150/4000a

rated frequency: 50hz

rated short-duration power frequency withstand voltage: 42kv in compliance with iec 62271-200

rated lightning impulse withstand voltage: 75kv

rated short-time withstand current: 31.5/40/40ka 4s

rated peak withstand current: 80ka 

rated short-circuit breaking current: 31.5/40/40ka

rated short-circuit making current: 80ka

internal arcing classification:

accesibility (front, rear, lateral): type a

test current: 31.5/40/40ka

arc duration: 1/0.5/0.5 second

partition class: pm (metallic partition)

loss of service continuity category: lsc2b (metal-clad)

design specification: designed and tested in compliance with iec 62271-200 and gb 3906