800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA33LHB(X)24-3(-100)(-200)(-300)On/Off, Floating Point, Non-Spring Return, Linear Stroke, 24 VLinear Force min. 34 lbf for control of damper surfaces up to 11 sq. ft.ApplicationFor on/off and floating point control of dampers in HVAC systems. Actuator sizing shouldbe done in accordance with the damper manufacturer’s specifications.OperationThe actuator is not provided with and does not require any limit switches, but iselectronically protected against overload. The anti-rotation strap supplied with theactuator will prevent lateral movement.The LHB(X)24-3... series provides 4, 8, or 12 in of linear force. The stroke of the gearrack can be adjusted on both sides in increments of 0.8 in [20 mm] by means of themechanical end stops.When reaching the damper or actuator end position, the actuator automatically stops.The gears can be manually disengaged with a button on the actuator cover.The LHB(X)24-3… actuators use a sensorless brushless DC motor, which is controlledby an Application Specific Integrated Circuit (ASIC). The ASIC monitors and controls theactuator’s rotation and provides a digital rotation sensing (DRS) function to preventdamage to the actuator in a stall condition. Power consumption is reduced in holdingmode.Dimensions (Inches [mm]).69"[17.4].54"[13.7]2.64"[67]AABB3" [75]2" [50.8]1.1"[27.8]2.6"[66].16" [4]0.13" [3.2]Stroke A4" [100]9.2" [233.5]8" [294.2]8" [200]13.1" [333.5]12" [394.2]12" [300]17.1" [433.5]16" [494.2]135Technical DataLHB(X)24-3(-100)(-200)(-300)Power supply24 VAC ± 20% 50/60 Hz24 VDC ± 20%Power consumption1.5 W (0.5 W)Transformer sizing3 VA (Class 2 power source)Electrical connection18 GA appliance rated cable1/2” conduit connectorprotected NEMA 2 (IP54)3 ft [1m] 10 ft [3m] 16 ft [5m]Overload protectionelectronic throughout full strokeControlon/off, floating pointInput impedance60 Linear strokeLHB(X)24-3-1004 in [100 mm]LHB(X)24-3-2008 in [200 mm]LHB(X)24-3-30012 in [300 mm]Linear force34 lbf [150 N]Stroke directionreversible with switchManual overrideexternal push buttonRunning time150, 95, or 75 seconds per 4" [100mm]Humidity5 to 95% RH non condensing (EN 60730-1)Ambient temperature-22°F to 122°F [-30°C to 50°C]Storage temperature-40°F to 176°F [-40°C to 80°C]HousingNEMA 2, IP54, UL enclosure type 2Housing materialUL94-5VAAgency listingscULus acc. to UL 60730-1A/-2-14, CAN/CSA E60730-1:02,CE acc. to 2004/108/EEC and 2006/95/ECNoise level (max)35dB(A)Servicingmaintenance freeQuality standardISO 9001WeightLHB(X)24-3-1000.81 lbs [0.37 kg]LHB(X)24-3-2000.86 lbs [0.39 kg]LHB(X)24-3-3000.93 lbs [0.42 kg]† Rated Impulse Voltage 800V, Type of action 1.AA, Control Pollution Degree 3.40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc.800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA33LHB(X)24-3(-100)(-200)(-300)On/Off, Floating Point, Non-Spring Return, Linear Stroke, 24 VAccessoriesZ-DS1Rotary Support to Compensate Lateral ForcesZ-KSALinear CouplingP370Shaft Mount Auxiliary SwitchNOTE: When using LHB(X)24-3… actuators, only use accessories listed on this page.Typical SpecificationFloating point, on/off control damper actuators shall be electronic type, with integrated linear stroking arm. Actuators shall have brushless DC motor technology and be protected from overload at all positions of linear stroke. Actuators shall havereversing switch and manual override on the cover. Run time shall be constant andindependent of torque. Actuators shall be cUL Approved, have a 5-year warranty, andbe manufactured under ISO 9001 International Quality Control Standards. Actuatorsshall be as manufactured by Belimo.Wiring Diagrams1Provide overload protection and disconnect as required.Actuators may also be powered by 24 VDC.Meets cULus or UL and CSA Standard requirements without theneed of an electrical ground connection. Live Electrical Components! During installation, testing, servicing and troubleshooting of this product, it may be necessary to work with live electrical components. Have a qualified licensed electrician or other individual who has been properly trained in handling live electrical components perform these tasks. Failure to follow all electrical safety precautions when exposed to live electrical compo-nents could result in death or serious injury.393_08On/Off controlW394_08Floating Point or On/Off control40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc.Next >