Direct-Coupled Non-Fail-Safe Actuator, Tri-State/2 Pos, 24 VAC/VDC (45 in-lb)

These compact but powerful direct-coupled ControlSet actuators provide fast and accurate (three-wire) tri-state floating or two-position control for dampers or valves in HVAC systems. A minimum torque of 25 (MEP-4201), 45 (MEP-4501), or 90 (MEP-4901) in-lb. is available over the 95 angular rotation in 35 seconds or less (or 45 seconds for the MEP-4901). These non-fail-safe models are designed for use with floating thermostats or controllers or for twoposition control. A patented noise reducer provides whisper-quiet operation. All actuators mount directly to 1/4- to 5/8-inch (6 to 16 mm) round shafts or 1/4- to 7/16-inch (6 to 11 mm) square shafts, eliminating the need for expensive and complicated linkages. A non-rotation bracket, to prevent lateral movement, is included with each actuator. A gear disengagement button allows easy manual positioning of the actuator.

Features & Benefits:

• Fast rotation-less than 35 seconds for 90 with 25 or 45 in-lb. of torque or less than 45 seconds with 90 in-lb. torque (see the Models section)
• Tri-state floating or two-position control (threewire, dependent on wiring and switch configuration)
• Direct mounting to standard shaft sizes, gear disengagement button, and adjustable mechanical end stop
• A patented noise reducer provides whisper-quiet operation