BE1-851, Digital Overcurrent Protection System with Drawout Construction

A compact multifunction system that provides three-phase, ground, and negative sequence overcurrent protection intended for use in nondirectional overcurrent applications including feeder, generator, cogeneration, and transformer backup applications.


IEEE Device Functions
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  • Flexible configuration of a protection and control system using BESTlogic™.
  • Replace local indication and control functions with the programmable LCD display.
  • Simple integration with distributed control systems provided through three independent communication ports with Modbus® and DNP protocol support.
  • Minimize installation costs by limiting panel modifications with the choice of three case configurations.
  • Easily perform in-case system and device tests using test paddles in the S1 case configuration.
  • Accommodate complex protection schemes via the additional outputs provided with the BE1-851E.


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