Direct Coupled Linear Valve Actuator, 24Vac, SPDT, Floating, Two Position, 160 Lbf Stem Force, Fail in Place, Nema 3R Electrical Protection, 1/2"-1" Stroke, 63 Second Nominal Drive Time at 3/4" Stroke, 32-130 Degree Ambient Temperature Range, 15-95%RH Operating Humidity Range, 3 or 5 Wire Operation