Electric damper actuator LFZ-T series

manualrotarypart-turn

Overview
LFZ-T05 series electric damper actuators use imported DC or brushless motors to provide a nominal torque of 5 N·m (also available in 10 N·m and 15 N·m variants). Engineered for HVAC and building ventilation dampers, the actuators provide electric drive with a mechanical spring reset (fail-safe) on power loss and are rated for more than 30,000 repeated cycles.

Key features

• Nominal torque: 5 N·m (models available at 5/10/15 N·m).
• Motor types: imported DC motor or brushless motor.
• Function: electric actuation with spring (mechanical) reset on power failure.
• Durability: >30,000 cycles.
• Manual operation and mechanical position indication.
• Control: ON‑OFF signal; variants with auxiliary switches (KF).
• Protection class: IP54; operating noise: motor ≈46 dB, spring reset ≈62 dB.
• Shaft compatibility: >50 mm shaft length; round/square shafts 10–20 mm / 10x10–16x16.
• Weight: <1.8 kg.

Technical parameters

• Rated voltage: AC24V 50/60Hz, DC24V or AC100–240V 50/60Hz (model dependent).
• Rated voltage range: AC/DC 19.2–28.8 V / AC 85–265 V.
• Cable size: 0.5 mm².
• Auxiliary switch rating: 3 A, AC230 V (on KF models: two sets).
• Rotation angle: max 95° (full stroke mechanically adjustable).
• Motor run time: ≈70 s; spring reset time <20 s.
• Operating temperature: -20 .. +50 °C; storage: -30 .. +80 °C.
• Humidity: up to 95 % RH, no condensation.

Model variants

• LFZ-T0524-K / T1024-K / T1524-K — 5 N / 10 N / 15 N output, 24 V, motor run ≈70 s; spring reset <20 s; ON‑OFF control.
• LFZ-T0524-KF / T1024-KF / T1524-KF — as above with two sets of auxiliary switches.
• LFZ-T05230-K / T10230-K / T15230-K — 5 N / 10 N / 15 N output, 230 V, motor run ≈70 s; spring reset <20 s; ON‑OFF control.
• LFZ-T05230-KF / T10230-KF / T15230-KF — as above with two sets of auxiliary switches.

Dimensions

• Refer to dimension drawings for installation and shaft sizing.
• Shaft length: >50 mm; supported shaft sizes: round 10–20 mm; square/round 10x10 .. 16x16.
• Overall weight: <1.8 kg.

Documents

• Datasheet PDF available (LFZ‑T spring‑reset damper actuator).