DC Change-Over Switches STUY/STPY

STUY / STPY change-over switches are devices which are installed in stationary substations. They are used for switching-over the no-load circuits. The drive can be both manual and motor one. From the viewpoint of safety and prevention of unintended switching they can be equipped with locks which lock the position and manual operation.

Nominal voltage
  • 750VDC / 1500VDC / 3000VDC (technical consultation needed)
Nominal current
  • 1000A / 2000A / 4000A / 6300A
Number of poles 
  • 1 / 2 / 3
Version
  • manual
  • manual with blocking magnet
  • motorized
  • position locking according to customer requirement  
Control voltage
  • 24 / 48 / 60 / 110 / 220VDC / 230VAC / 3x400VAC
Ambient temperature
  • -25° - + 40°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 standards
  • EN 50123
  • EN 50328