Arc Protection Reyrolle 7XG31

Arc fault protection is a relatively new technique used to quickly resolve arcing faults on bus bars, and within metal clad switchgear and associated cable boxes.

The Reyrolle 7XG31 ReyArc device is specifically designed to provide multiple arc protection schemes catered to the requirements of your protection system.

Basic Features

  • 7XG3130 - RA30 is an optical sensor that responds to the flash of light emitted during the incidence of an arcing fault within a few milliseconds
  • Once an arc is detected, the resistance presented by the RA30 drops to a level where the current flow increases to approximately 20mA
  • 7XG3120 - RA20 module immediately detects the increased current flow and closes the trip output contacts
  • 7XG3123 – RA23 module will detect the increased current flow and respond in < 1 ms to close a solid-state contact to activate the arc fault input on the protection relay
  • 7XG3127 – RA27 module may be configured to suit a wide range of arc flash monitoring applications