Medium Voltage & Electrotechnology


Instrument Transformers

RITZ is one of the world´s leading specialists for Instrument Transformers, Cast Resin Applications, Cast Resin Insulated Busbar Systems and Cast Resin Insulated Power Transformers.

  • Instrument Transformers
  • Indoor
  • Outdoor
  • Special Designs
  • Sensors
  • Power Quality
  • Metal Clad
  • SIS Bus Bar Systems

Solid Insulated Bus Bar Systems

Especially for the transmission of higher current and in case of limited space, the solid busbar insulation system is an alternative to parallel connected cables and metal enclosed busbar connections.

The following inherent benefits speak for the use of fully insulated busbars:

  • Design
  • Low space requirements
  • 3-dimensional geometric shape is possible
  • Capacitive Grading system
  • Safe to touch
  • Natural cooling due to effectual conductor design
  • High operational reliability due to factory routine test
  • Compact design
  • Small bending radii
  • Safety Benefits
  • Capable of withstanding high thermal and dynamic short circuit currents
  • No short-circuits due to full insulation


Medium Voltage Switching Devices

Driescher is world leader in Medium Voltage Switching Devices

Products include:

  • Indoor switch disconnectors, disconnectors and earthing switches (single-pole and three-pole)
  • Indoor circuit breakers (low-oil and vacuum)
  • Outdoor switch disconnectors (low-oil and vacuum)
  • Switching devices for railway systems
  • High voltage, high-rupturing-capacity fuses
  • Customer-specific switching devices

Here you will find all our switching devices and switchgear from 12 kV to 38.5 kV, including accessories and options:

  • 12 kV switchgear
  • 24 kV switchgear
  • 36 kV switchgear
  • 38.5 kV switchgear

Disconnectors, Load Break Switches & Switchgear

  • Indoor switch disconnectors, disconnectors and earthing switches (single-pole and three-pole)
  • Indoor circuit breakers
  • Outdoor switch disconnectors
  • High voltage, high-rupturing-capacity fuses
  • Customer-specific switching devices

Rated voltages Ur, 12 kV, 24 kV, 36 kV and 38.5 kV
– Rated currents Ir, 630 A, 1600 A, 2500 A, 4000 A and 6300 A



DRIESCHER Medium voltage switchgear PRO-AIR H
– Indoor
– Air-insulated
– Rated voltage 36 kV
– Rated current up to 2000 A
– Rated short-time current up to 31.5 kA, 3s

– rated voltage 12 kV up to 38.5 kv
– rated current 630 A up to 2500 A






Connections for Low Voltage Application



Special Current Paths for Low Voltage Air Circuit Breakers

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