WRU-RAL Series

Description

• Electronic differential protection relay with automatic reclosing with built-in 28 mm transformer, constituting one unit.
• Superimmunized Type A , with high-frequency current filter and high insulation. Measurement in true root mean square (TRMS) value
• Display with leds and back-lit display:
  • Differential protection/reclosing settings
  • protection trigger current.
  • number of reclosures
  • protection status messages, etc.
• Unit with three output contact relays one switched and two simple relays, all programmable. The main relay provides the protection associated with the contactor, one is for the pre-alarm and the other for locking once the maximum number of reclosures is reached.
• There is a voltage input for external triggering and reclosing
• Fitting: DIN 46277 (EN-50022) profile
• Reduced three-module size.
• Connection by pluggable terminals