Time Mark 20AB

3-Phase Monitor with Trip and Restart Delays, 3PH,190-480V 50/60 Hz,1xN.O./1xN.C., cUL/UL

3-PHASE MONITOR WITH ADJUSTABLE TRIP & RESTART DELAYS

A microcontroller-based universal 3-phase monitor for protecting 3-phase motors from abnormal power conditions. It can detect under voltage, over voltage, voltage unbalance, reverse phase, and single-phasing even when regenerated voltage is present. Adjustable trip and restart delays prevent nuisance tripping during power fluctuations and short cycling in compressor applications. The LED status indicators and adjustment pots for Voltage Adjustment, percent Unbalance, Restart Delay and Trip Delay are mounted on the front of the unit for easy access. There is 1 normally open (N.O.) and 1 normally closed (N.C.) isolated contact. Automatic or manual restart versions are available. A neutral connection is not required and this unit can be used on either Wye or Delta systems. All versions are UL Recognized (U.S. and Canada) and are available with optional gold flashed silver contacts for low current applications.