The BE1-51/27C Three-Phase and Neutral Time Overcurrent Relay is a microprocessor-based protective relay designed to provide reliable overload and fault protection for 50 Hz and 60 Hz power systems. Featuring voltage control functionality along with three-phase and neutral overcurrent protection, it delivers dependable performance across a wide range of utility, industrial, and power generation applications. Its versatile design helps improve system coordination, equipment protection, and operational reliability in critical electrical systems.