Designed specifically for AC dielectric testing./ Powerful unit with output current sufficient to test both the elevating boom as well as the insulated work platfrom and linings./ Internal Voltage dividers for all units./ Controls in a removable enclosure, grounded through the powercord with provisions for a separate ground cable./ Circuit breaker for control power, combined with EMERGENCY OFF pushbutton./ Guard mode for accurate current measurements./ External interlock provisions./ ZERO START interlock./ Overload circuit, adjustable from 10% to 110% of rated output current.