C263SGM

The Model 263 continuously monitors 3-phase power systems for phase
loss, low voltage and phase reversal. The monitor consists of a
solid-state sensing circuit, driving an electromechanical relay.
Applying correct voltage and phase rotation energizes the relay. When
properly adjusted, a fault condition will cause the relay to
de-energize, even when regenerated voltage is present. When the fault
is corrected, the Model 263 automatically resets. A manual reset version
and an option for gold-plated contacts are also available. The Model
263 does not require a neutral connection, and can be used on Wye or
Delta systems. Each of the five different voltage ranges is adjustable
to allow the monitor to be set for existing conditions. NORMAL and TRIP
LED indicators are provided to aid in adjustment and system troubleshooting.