The Hawkeye TruStat H11D is a microprocessor based,self‑learning,self‑calibrating current switch.It is designed for user ease,providing calibration‑free status for both under and overcurrent,an LCD display,and slide‑switch selectable trip point limits.At initial power‑up,the H11D automatically learns the average current on the line with no action required by the installer.Once a current is learned,the switch monitors for changes in current greater than the selected range.