Electric damper actuator LFZ-Q series

rotary90°IP54

Product overview
LFZ-Q series electric rotary damper actuators provide fast-positioning torque options (5, 8, 16, 24, 40 Nm) using DC or brushless motors. Designed for rail transit, ventilation, laboratories and industrial HVAC applications, they mount on square, round or custom damper shafts and include manual override, position indicator and full overload protection.

Key specifications

• Torque options: 5 / 8 / 16 / 24 / 40 Nm (48 Nm referenced)
• Supply: DC24V, AC24V 50/60Hz, AC100–240V (rated ranges AC/DC 19–28.8V / AC85–265V)
• Power consumption: Running 4.5 W; Standby 0.5 W
• Protection: IP54; Electrical class: SELV / double insulation
• Rotation: Nominal 90° (max 95°); rotation direction selectable by DIP switch
• Noise: ~46 dBA (1 m); Operating temp: -20°C to +50°C; Storage: -30°C to +80°C
• Cable/terminal: 0.5 mm² cable; terminal max 2 mm²

Model selection (examples)

• LFZ-Q0524/230-K/KF — 5 N·m; 24V/230V; 3.5 s; On–off control; two auxiliary switches
• LFZ-Q0824/230-M/MF — 8 N·m; 24V/230V; 8 s; 0(2)–10 V / 0(4)–20 mA; two auxiliary switches
• LFZ-Q1624/230-M/MF — 16 N·m; 24V/230V; 16 s; analog control; two auxiliary switches
• LFZ-Q2424/230-M/MF — 24 N·m; 24V/230V; < 30 s; analog control; two auxiliary switches
• LFZ-Q4024/230-M/MF — 40 N·m; 24V/230V; < 30 s; analog control; two auxiliary switches

Installation & features

• Mounting: compatible with square, circular and other damper shafts; minimum shaft length > 50 mm
• Manual override via gear disengagement button; manual limit function
• DIP switch selectable rotation direction; position indicated by angle indicator
• Full overload protection; weight < 1.3 kg

Ordering information
Suffix -KF / -MF indicates variants equipped with auxiliary switches; specify full model designation when ordering.

Typical applications

• HVAC and building automation
• Rail transit ventilation
• Clean rooms and laboratories
• Industrial ventilation and water treatment systems