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QBZ-4¡Á120(80)/1140(660¡¢380)F Vacuum Electromagnetic Starters
QBZ-4¡Á120(80)/1140(660¡¢380)F Vacuum Electromagnetic Starters
QBZ-4¡Á120(80)/1140(660¡¢380)F Vacuum Electromagnetic Starters
 
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 Product Information
This series combined swith is applicable in AC50Hz power distrbution system with voltage of 1140V(660V¡¢380V)in underground coal mines with explosive and dangerous gas(methane)and coal dust,and it is used to make automatic switching over control to dual power suply and dual disrotatory fan,realizing power distrbution of dual power supply.automatic switching over operation mode of master-slave disrotatory fan for underground coal mine especially for high gas time.
 Product Features
  1.Rated voltage£¨V£©;1140/660/380
  2.Rated current£¨A£©;120
  3.Max. power of controlled electric machine:175/100/55
  4.Control voltage£¨V£©:36
  5.Leakage lockout value£¨k¦¸£©:40+ 20%/22+ 20%/7+ 20%
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