Overview Honeywell ML6161 controls dampers in applications including variable air volume (VAV) terminal units and for mounting on ball valves. Used with SPDT or floating thermostats or building automation controls. Features Control for air damper applications with up to 10 sq. ft. assuming 35 lb-in. per sq. ft. of damper area A/C synchronous submotor offers consistent timing and longevity Magnetic coupling eliminates need for limit switches or mechanical stops Includes manual declutch level and bag assembly with two setscrews Mounts on 3/8- or 1/2-in. square or damper shaft Selectable 45, 60 and 90 stroke for clockwise or counterclockwise direction Product Specifications ApplicationHVACDimensions (in.)5.86 in high x 3.63 in wide x 3.74 in deepDimensions (mm)149 mm high x 92 mm wide x 95 mm deepIncludes4074ENY Bag AssemblyWeight (lb)2 lbWeight (kg)0.91 kgMaterialsSteel plate and Plenum rated plasticCommentsIncludes two 5/8 x 7/8 in. double knock-out conduit openingsMountingDirect CoupledFrequency50 Hz; 60 HzApprovals, Underwriters Laboratories Inc.UL873, Plenum RatedElectrical ConnectionsScrew terminalsOperating Humidity Range (% RH)5 to 95% RH, non-condensingSupply Voltage24 Vac ±20%Power ConsumptionDriving-- 1.8 VAShipping and Storage Temperature Range (F)20 F to 130 FShipping and Storage Temperature Range (C)-18 C to +54 CApprovals, Canadian Underwriters Laboratories Inc.cUL C22.2 No. 24-93Ambient Temperature Range (F)20 F to 125 FAmbient Temperature Range (C)-18 C to +50 CEnvironmental, Electrical or Ingress Protection RatingNEMA 1Internal Auxiliary Switch0Maximum Noise RatingDriving (dB(A) @ 1m)-- 45Stroke90 degreesShaft Dimensions (in.)3/8 to 1/2 in. square or roundActuator TypeDamperControl SignalFloating; SPDT; On/OffFail Safe ModeNon-Spring ReturnTorque Rating (lb-in.)35 lb-in.Torque Rating (Nm)4 NmAdditional Torque Ratings (lb-in.)Maximum Stall-- 70 lb-in.Additional Torque Ratings (Nm)Maximum Stall-- 8 NmExternal Auxiliary Switches AvailableYes, 201052BRotation to OpenBy wiringRotational Stroke AdjustmentMechanically limited at 45 or 60 degrees in CW or CCW directionsTiming, NominalDriving @ 60 Hz-- 420 secFeedbackWith accessoryShaft Adapter TypeAluminum Hub, two set screwsManual operationDeclutch mechanismShaft Dimensions (mm)10 to 13 mm square/round