Proportional Modutrol IV Motor, 24Vac, 135 Ohm Control Signal, Non Spring Return, 300 Lb-In Torque, 120-240 Second Nominal Timing, 90-160 Degree Stroke, 90 Degree Factory Stroke Setting, Quick Connect Terminals, Foot Mounted, Dual Ended Square Shaft, .375" Shaft Dimension, Integral Junction Box Provides Nema 3 Weather Protection, Includes Transformer