Johnson Controls M9116-AGA-2 : Non-Spring Return Electric Actuator, On/Off or Floating, 140 in-lb, 80 Second Run Time, 6.5 VA Rating, 24 VAC/VDC, NEMA 2, Screw terminals for 22 to 14 AWG, 3/8 to 3/4" (10 to 20 mm) diameter round shaft or 3/8 to 5/8" (10 to 16 mm) square shaft