LA-1000 Series of Linear Actuators The LA-1000 Series are full-featured, linear actuators designed to meet the exacting requirements for closed-loop modulating positioning control. Designed for low thrust linear applications, these actuators are capable of accepting analog current and voltage command signals. The brushless stepper motor design provides smooth, highly accurate positioning, with positive position-lock when not in motion. The LA-1000 Series is ideally suited for small dampers, vanes and slide gates requiring exact position control and continuous modulation. Features permanently lubricated for any position mounting amplifier supplies current to hold last position and prevent backdriving, up to thrust rating under power AC or DC input power versions 4 to 20 mA, loop-powered, feedback signal field selectable adjustments for: speed, deadband, zero and span, command signal type, standard or reverse acting, ... wide ambient temperature range full one year warranty