AEMC Artificial Neutral Model AN-1 The Artificial Neutral Model AN-1 is designed for ungrounded networks, providing an intermittent path to ground for leakage current measurements. The Model AN-1 operates from 30 to 600VAC. Features include: Red LED phase fault indicator Switch selectable ground fault cycling of 500ms or 2.3 seconds Buzzer alerts each momentary fault Battery operated Double insulated, fire retardant case Four color-coded 5' 1000V rated leads supplied with alligator clips Works with Model 2620 and other leakage current probes