Housed in E6 or E8 cases

Four current inputs and multiple voltage inputs

Integrated programmable logic

Optional auto-reclose for overhead line feeders

Protection functions: Undercurrent (37), Broken Conductor (46BC), Negative Phase Sequence Overcurrent (46NPS), Thermal Overload (49), Overcurrent (50/51), Earth Fault (50G/50N/50SEF/51G/51N/51SEF), Directional OC & EF (67), High Impedance REF (64H), Under/Over Voltage (27/59), Negative Phase Sequence Voltage (47), Voltage-Controlled OC (51V), Neutral Voltage Displacement (59N), Under/Over Frequency (81)

Supervision: CT (60CTS), VT (60VTS), Trip & Close Circuits (74T/CCS), Inrush Detector (81HBL2), Circuit Breaker Fail (50BF)

Control: Auto Reclose (79)

Monitoring: Primary/Secondary currents and earth direction, line and phase voltages, apparent and real/reactive power, energy (Wh, VArh), PPS/NPS/ZPS, historical demand records

Data communications channels for protection, instrumentation, and metering