• Reliable LCD Display... simplifies system setup and diagnostics
• Indicates condition of incoming line voltage, fault conditions, system setpoints and other user adjustments
• Temp.: -3 to +1 67F (-20 to +75C).
• Simultaneous voltage display... View all 3 phases at once-no need to scroll through readouts.
• Fully adjustable variables... user may easily set and adjust variables when in SETUP mode:- Line Voltage (190-600 VAC)- Voltage Unbalance (2-20%)- Delay on Break period (0-10 min.)- Fault Interrogation (0-15 sec )- Over/Under Voltage (2-25%)- Reset Modes (AUTO or 0-10)- Control Modes: ON or OFF
• Easy to install and configure... wiring diagram on unit, simple 7-step push hutton setup, guide included.
• 25-Fault memory storage... clearly displayed in LCD.
• Ultra bright LED indicators... shows current mode:- Set-Up LED- Load Energized LED- Control Voltage LED- Front Fault LED

The Totaline P251-0091 Programmable 3-Phase Voltage Monitor Stop Motor Burnouts! 3-Phase line voltage monitor with 25-fault memory, high-temperature LCD display, easy setup & clear diagnostic readout of system faults, 190-600 VAC operation...The P251-0091 was specifically designed to protect motors and other 3-phase loads from premature failure and damage due to common voltage faults such as voltage unbalance, over/under voltage, phase loss, reversal, incorrect sequencing and rapid short cycling.