LMCB24-3

LMCB24-3 BELIMO | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 2

Technical content

Power Supply 24 VAC, ±20%, 50/60 Hz, 24 VDC, ±10% Power consumption in operation 1.5 W Power consumption in rest position 0.2 W Transformer sizing 3 VA (class 2 power source) Shaft Diameter 1/4...5/8” round, centers on 5/8”, 3/4” clamp available Electrical Connection 18 GA plenum cable, 3 ft [1 m], with 1/2” conduit connector, degree of protection NEMA 2 / IP54 Overload Protection electronic throughout 0...95° rotation Input Impedance 600 Ω Angle of rotation Max. 95°, adjustable with mechanical stop Torque motor 45 in-lb [5 Nm] Direction of motion motor selectable with switch 0/1 Position indication Mechanically, 30...65 mm stroke Manual override external push button Running Time (Motor) 35 s, constant, independent of load Ambient humidity max. 95% r.H., non-condensing Degree of Protection IP54, NEMA 2, UL Enclosure Type 2 Housing material UL94-5VA Agency Listing cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. to 2014/30/EU and 2014/35/EU Noise level, motor 45 dB(A) Servicing maintenance-free Quality Standard ISO 9001 Weight 1.2 lb [0.54 kg] †Rated Impulse Voltage 800V, Type action 1, Control Pollution Degree 3. Torque min. 45 in-lb, for control of damper surfaces up to 11 sq. ft. Application For On/Off and floating point control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications. The actuator is mounted directly to a damper shaft from 1/4” up to 5/8” in diameter by means of its standard universal clamp. Shafts up to 3/4” diameter can be accommodated by an accessory clamp. Operation The actuator is not provided with and does not require any limit switches, but is electronically protected against overload. The anti-rotation strap supplied with the actuator will prevent lateral movement. The LMB series provides 95° of rotation and a visual indicator which indicates position of the actuator. When reaching the damper or actuator end position, the actuator automatically stops. The gears can be disengaged with manual release on the actuator cover. The LMCB24-3… actuators use a sensorless brushless DC motor, which is controlled by an Application Specific Integrated Circuit (ASIC). The ASIC monitors and controls the actuator’s rotation and provides a digital rotation sensing (DRS) function to prevent damage to the actuator in a stall condition. Power consumption is reduced in holding mode. Add-on auxiliary switches or feedback potentiometers are easily fastened directly onto the actuator body for signaling and switching functions. Dimensions (Inches[mm]) 1.85” [47] 2.34” [59.4] 2.6” [66] 4.57” [116] 3.47” [88] To center of mounting slot. LMCB24-3 Technical Data Sheet On/Off, Floating Point, Non-Spring Return, 24 V 800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN Date created, 02/10/2020 - Subject to change. © Belimo Aircontrols (USA), Inc.

Floating point, on/off control damper actuators shall be electronic direct- coupled type, which require no crank arm and linkage and be capable of direct mounting to a shaft from 1/4” to 5/8”. Shafts up to 3/4” diameter can be accommodate with an accessory clamp. Actuators shall have brushless DC motor technology and be protected from overload at all angles of rotation. Actuators shall have reversing switch and manual override on the cover. If required, actuator will be provided with screw terminal strip for electrical connections (LMCB24-3-T). If required, actuators shall be provided with one adjustable SPDT auxiliary switch. Actuators with auxiliary switches must be constructed to meet the requirements for double insulation so an electrical ground is not required to meet agency listings. Run time shall be constant and independent of torque. Actuators shall be cULus listed, have a 5-year warranty, and be manufactured under ISO 9001 International Quality Control Standards. Actuators shall be as manufactured by Belimo. Wiring Diagrams A Actuators with appliance cables are numbered. Provide overload protection and disconnect as required. Actuators may also be powered by 24 VDC. Actuators Hot wire must be connected to the control board common. Only connect common to neg. (-) leg of control circuits. Terminal models (-T) have no-feedback. Actuators may be connected in parallel if not mechanically linked. Power consumption and input impedance must be observed. 1 3 1124 VAC Transformer Blk (1) Common Red (2) + Hot Wht (3) Y Input Line Volts A On/Off 1 3 1124 VAC Transformer Blk (1) Common Red (2) + Hot Wht (3) Y Input Line Volts A Floating Point ComHot 1 3 11A Blk (1) Common Red (2) + Hot Wht (3) Y Input Line Volts

24 VAC Transformer

Floating Point - Triac Source 1 11A Blk (1) Common Red (2) + Hot Wht (3) Y Input Line Volts Floating Point - Triac Sink LMCB24-3 Technical Data Sheet On/Off, Floating Point, Non-Spring Return, 24 V 800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN Date created, 02/10/2020 - Subject to change. © Belimo Aircontrols (USA), Inc.