DC Disconnectors STOR

STOR disconnectors are devices installed in stationary subtations. They are used for no-load switching of electrical circuits. They are controlled either manually, with possibility of electromagnetic blocking of end positions, or by a motor unit with emergency control by a crank handle. As compared with disconnectors STOL, the main contacts move in linear direction, and thus in the disconnected position the outside dimensions remain unchanged. Thanks to this construction it is possible to minimize installation dimensions. The disconnector status is signalled by auxiliary contacts. The modular design enables various versions.


 

Nominal voltage
  • 3000VDC
Nominal current
  • 1000A / 2000A / 4000A / 6300A
Number of poles
  • 1 / 2
Version
  • manual
  • manual with magnetic blocking
  • motorized
Control voltage
  • 24 / 48 / 60 / 110 / 220VDC / 230VAC / 3x400VAC
Ambient temperature
  • -25° - + 40°C (alternatively up to -50°C)
Number of auxiliary contacts
  • 0 / 2 / 4 / 6 / 8
Overvoltage class
  • OV4
Pollution degree
  • PD4
Degree of protection
  • IP00
Mechanical lifetime
  • motorized version - 100 000 cycles
  • manual version - 20 000 cycles
According to standart
  • EN 50123
  • EN 50328