Hays Cleveland F-09140-A0 Linear Actuators are compact, versatile drives that can be used to position final control elements in open loop combustion and process control applications. These rugged actuators feature a stepper motor for instantaneous stops and starts (without coasting) in response to switched line voltage input. High starting torque overcomes static friction and overload stalling will not damage the impedance-protected motor. Several standard thrust/stroke time ranges are available, as well as convenient options such as weather-resistant housing, hand wheel, and adjustable “safe start” position switch. This actuator is the industry-standard damper positioner in draft control applications. Please see also Hays Cleveland Standard Linkage and C-07720 Draft Controller.