Protection Functions

• 3x50/51 - Phase overcurrent
• 50N/51N - Neutral overcurrent
• 59N - Neutral voltage unbalance
• 27 - Undervoltage
• 59 - Overvoltage
• Breaker failure protection
• Open-Phase Protection
• Sustained ground overcurrent protection

Features

• Automatic bank switching - program by clock or reactive power flow
• Local and remote switch operation
• 5 selectable time-current characteristics
• 3 alternative settings groups
• 13 LED targets (12 programmable)
• 8 programmable digital inputs
• 7 auxiliary outputs with protection programmable logic
• Close and trip outputs (2+2)
• Close and trip circuit monitoring
• Breaker monitoring
• Local and remote communication interface
• Time synchronization
• Metering display
• Sequence-of-events recording
• Fault reporting
• Historical metering data logging
• ZIVercom communications software

Options

• Additional I/O and LED target modules
• Oscillographic recording
• Lockout function (86, electric/manual)
• IEC 61850 (UCA 2.0 )
• DNP 3.0 Level II