Electric damper actuator LFZ10

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Overview
The LFZ10 damper actuator uses a brushless motor to provide long service life, low operational noise and reliable operation. It supports On/Off (two-/three-point), 0(2)-10 VDC, 0(4)-20 mA and RS485 control. The direct-coupled design allows mounting directly on the damper shaft. A removable terminal box and waterproof gland simplify on-site wiring. Suitable for driving dampers in HVAC and Building Automation systems for commercial, industrial and public buildings.

Key features

• Designed for driving dampers in building automation and mechanical ventilation systems (HVAC)
• Direct-coupled design for direct mounting on damper shafts with various diameters
• Manual operation button disengages gear for manual reset during power failure
• Suitable for dampers up to approximately 1.5 m²
• Removable terminal box and waterproof cable gland for easier installation and wiring

Technical specifications

• Model series: LFZ10
• Motor type: Brushless motor
• Rated voltage: AC/DC 24 V 50/60 Hz; AC 100–240 V 50/60 Hz
• Voltage range: AC/DC 19.2–28.8 V; AC 85–264 V
• Power consumption: Running < 4.5 W; Holding < 1 W
• Electrical grade: Class III (SELV); Class II (Double insulation)
• Electrical connection: Terminal connection (14–22 AWG)
• Control modes: On/Off (2-/3-point); 0(2)-10 VDC; 0(4)-20 mA; RS485
• Feedback options: None; 0(2)-10 VDC; 0(4)-20 mA; RS485
• Feedback switches: 2 × SPDT 250 V / 3 A
• Torque: 10 N·m
• Rotation angle: ≤95°; Running time (full stroke): 110 s
• Compatible damper area: approx. 1.5 m² (max.)
• Noise level: ≤40 dB at 1 m
• Position indication: Mechanical indicator
• Operating life: 100,000 full-stroke cycles
• Protection class: IP54
• Operating temperature: -20 to 60 °C; Storage: -40 to 80 °C
• Humidity: 5–95% non-condensing (EN 60730-1)
• Damper shaft: length > 50 mm; round Ø6–15 mm; square 8×8–12×12 mm
• Unit weight example: 0.65 kg (24 V On/Off type)

Installation & notes

• Rotation direction selectable via rotary switch; ensure correct orientation before commissioning
• Use the manual release button to disengage the gear for manual positioning during maintenance or power failure
• When using AC supply with RS485 output, use an isolated power supply
• Observe terminal connection range (14–22 AWG) and mounting dimensions from dimensional drawings