KMC Controls Direct-Coupled ControlSet Actuators, Proportional 2-10 VDC with Fail-Safe (180 in-lb)

Direct-Coupled ControlSet Actuators, Proportional 2-10 VDC with Fail-Safe (180 in-lb) These powerful, efficient, durable, direct-coupled actuators provide tri-state or proportional control for large control dampers or valves in HVAC systems. A minimum torque of 180 or 320 in-lb. is available over the 94° angular rotation. Capacitor-driven fail-safe models provide efficient operation with switchselectable fail direction. The proportional actuator models accept a 2–10 VDC or 4–20 mA control signal input from a thermostat, controller, or building automation system. “Anti-jitter” circuitry significantly reduces hunting and needless wear (from unnecessary miniscule position changes caused by undamped analog input signals) on the actuator and valve packing or damper components. A user-initiated, auto-mapping feature provides more precise equipment control by reassigning the (2–10 VDC or 4–20 mA) input signal range over a reduced rotation range. These models also feature a switch-selectable, 1–5 or 2–10 VDC volta...