Description

The RGU-10B is an electronic residual current protection and monitoring relay (IEC 62020) compatible with protection transformers in the WGC-TB series. It is the most complete system for monitoring and controlling electrical insulation of type-B installations (IEC 60755).

Main Features

• Electronic relay with relay output
• Measures in AC, DC, or mixed current, type B (IEC 60755)
• Measures current intensity through connection with a residual current transformer of the WGC-TB series
• Programmable with a backlit LCD display:
  • Displays trip current (turns red when tripped)
  • Parameter programming
  • Instantaneous leakage current display
  • Disconnection of external transformer
• Status signaling via 2 LEDs
• Two independent programmable outputs (main and pre-alarm)
• Includes a remote-control input
• Mounts on DIN 46277 rail (EN 50022), 3 modules

Applications

The RGU-10B is suitable for monitoring electrical insulation in:

• Single or three-phase AC installations
• AC installations with DC components
• Purely DC installations (frequencies up to 1 kHz)

Examples include:

• Speed drives
• UPS (Uninterruptible Power Supply systems)
• Photovoltaic installations
• Motor control devices, etc.