Neptronic DT060S : Spring Return Damper Actuator, 24 VAC/30 VDC, 35 in-lb, On/Off, Floating Point Control Input, 90 to 110 Second Run Time, 70 to 80 Second Spring Return, NEMA 2 Enclosure (Additional shipping or handling charges may apply. Contact sales@energycontrol.com for a quote.)