CBS4-RA Series

Description

• Unit equivalent to 4 earth leakage protection relays. 4 independent programmable relays available
• 4 inputs to connect the external toroidal transformers of the WG / WGS / WGC
• Self-reclosing with programmable earth leakage trip in each channel
• Superimmunized Type A relay with high frequency current filtering and high immunity. Monitoring in true root mean square (TRMS)
• Reduced size: 3 modules
• 5 independent programmable outputs:
  • 4 earth leakage trip outputs
  • 1 end-of-reclosing-sequence interlocking output
• Backlight display to show the information of the 4 channels:
  • Adjustment values
  • Instantaneous leakage current
• Trip/external reset input
• Automatic test of the connection and status of each external transformer
• Optional RS-485 Communications: type CBS-4C RA and CBS-4C RAL
• Assembly on DIN rail 46277 (EN-50022)
• Optional assembly on 72 x 72 panel with accessory M5ZZF1.