800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA30Technical Data LMQB(X)24-MFTPower supply24 VAC ±20% 50/60 Hz24 VDC ±10%Power consumption13 W (1.5 W)Transformer sizing23 VA (Class 2 power source)(I max 20A@5ms)Electrical connection18 GA plenum rated cableprotected NEMA 2 (IP54)3 ft [1m] 10 ft [3m] 16 ft [5m]Overload protectionelectronic throughout 0 to 95° rotationOperating range Y2 to 10 VDC, 4 to 20 mA (default)Variable (VDC, on/off)on/offInput impedance100 k (0.1 mA), 500 1000 (on/off)Feedback output U2 to 10 VDC, 0.5mA max, VDC variableAngle of rotationmin. 30°, max. 95°, adjust. with mechanical stopelectronically variableTorque35 in-lb [4 Nm]Direction of rotationreversible withswitchPosition indicationreflective visual indicator (snap-on)Manual overrideexternal push buttonRunning time2.5, 5 or 10 secondsHumidity5 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]Housing NEMA 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<52 dB(A)Servicing maintenance freeQuality standardISO 9001Weight1.8 lbs [0.85 kg]Rated Impulse Voltage 800V, Type of action 1, Control Pollution Degree 3.LMQB(X)24-MFTProportional, Non-Spring Return, 24 V, Multi-Function TechnologyTorque min. 35 in-lb for control of damper surfaces up to 11 sq ft.ApplicationFor proportional modulation of dampers in HVAC systems. Actuator sizing should bedone in accordance with the damper manufacturer’s specifications.The actuator is mounted directly to a damper shaft from ½” up to 1.05” in diameter bymeans of its universal clamp.The default parameters for 2 to 10 VDC applications of the …MFT actuator areassigned during manufacturing. If necessary, custom versions of the actuators can beordered. The parameters can be changedby two means: pre-set and customconfigurations from Belimo or on-site configurations using the Belimo PC-Toolsoftware (version 3.3 or later).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 LMQB(X) series provides 95° of rotation and a visual indicator indicates position ofthe actuator. When reaching the damper or actuator end position, the actuatorautomatically stops. The gears can be manually disengaged with a button on theactuator cover.The LMQB(X)24-MFT actuators use a brushless DC motor, which is controlled by anApplication 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.Add-on auxiliary switches or feedback potentiometers are easily fastened directly ontothe actuator body for signaling and switching functions.Dimensions (Inches [mm])LMQ24_MFT40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc.800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA30Accessories K-NAReversible ClampAV8-25Universal Shaft ExtensionZG-NMAShaft AdaptorZG-LMSA-1Shaft Adaptor for ¾” Diameter ShaftsZS-100Weather Shield - SteelZS-150Weather Shield - PolycarbonateTool-068 mm & 10 mm WrenchS1A, S2AAuxiliary Switch(es)P370Shaft Mount Auxiliary Switch…Feedback PotentiometersSGA24Min positioners in NEMA 4 housingSGF24Min positioners for fl ush panel mountingADS-100Analog to Digital SwitchZG-R01Resistor for 4 to 20 mA ConversionNSV24US Battery Back-Up ModuleZG-X40TransformerNOTE: When using LMQB(X)24-MFT actuators, only use accessories listed on this page.Typical SpecificationProportional control damper actuators shall be electronic direct-coupled type, whichrequire no crank arm and linkage and be capable of direct mounting to a shaft from ¼” to⁄”. Actuators must provide control in response to a control input from an electronic controller or positioner. Actuators shall have brushless DC motor technology and beprotected from overload at all angles of rotation. Actuators shall have reversing switchand manual override on the cover. Run time shall be constant and independent oftorque. Actuators shall be cULus listed, have a 5-year warranty, and be manufacturedunder ISO 9001 International Quality Control Standards. Actuators shall be asmanufactured by Belimo.Wiring DiagramsProvide overload protection and disconnect as required.CAUTION Equipment Damage!Actuators may be connected in parallel.Power consumption and input impedance must be observed.Actuators may also be powered by 24 VDC.The ZG-R01 500 resistor may be used.WARNING Live Electrical Components! During installation, testing, servicing and troubleshooting of this product, it may benecessary to work with live electrical components. Have a qualified licensed electrician or otherindividual 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.W399_08VDC/4-20 mAW399_08On/Off controLMQB(X)24-MFTProportional, Non-Spring Return, 24 V, Multi-Function Technology M40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc.Next >