ITEM NAME:Rotation Sequence Detector (with blue zipper carry bag, 3 sockets) X1V3 Rotation Sequence Detector (with blue zipper carry bag, 3 sockets) X1V3 Operating Voltage: 60V - 600V AC, Three phase Limit support Voltage: 2000 V / min (impulse voltage 4000V) Operating frequency range: 20 Hz - 400 Hz Limit continuous use time: 60 minutes maximum at 60 V AC, 4 minutes maximum at 600 V AC Test leads: Double insulation Characteristics: 100% Brand New Check the presence of open phase and identify 3 phase sequence.Check the presence of open phase and identify 3 phase sequence conditions. A unit with 2 functions: indication of open phase and indication of phase rotation. 1 x Blue Zipper Case. Test lead length: Approx.