Electrical safety devices to monitor, detect, locate, and interrupt ground faults in grounded, ungrounded, and high-resistance grounded systems.

Protection for people and equipment

  • Insulation monitoring for variable speed drives
  • Insulation monitoring devices for grounded and insulated AC and DC systems
  • Insulation fault location for grounded and insulated systems
  • Off-line monitoring
  • Hospital test equipment
  • Hospital insulation monitoring and change-over equipment
  • Portable insulation test equipment


  • Reduced maintenance and repair costs by early indication of insulation faults
  • Higher operational reliability – by alarm instead of power interruptions
  • Improved protection and monitoring functions for extended systems with high capacity consumers
  • Reducing fire risk