Belimo LF230 - rotary actuator for dampers with safety function

Belimo LF230 – actuator for dampers

The rotary actuator with safety function is designed to control dampers in building services systems. According to the technical data sheet, it supports air dampers with an area of up to approx. 0.8 m². As it moves to the operating position, it tensions the return spring; if the power supply is interrupted, the spring energy moves the damper to the safety position.

Key features and specifications

• Torque of the motor and safety function: 4 Nm.
• Rated voltage: AC 100...240 V; frequency: 50/60 Hz.
• Control: Close/Open.
• Motor running time: 75 s / 90°; safety function running time: <20 s @ -20...50°C, <60 s @ -30°C.
• Power consumption during operation: 3.5 W; at rest: 2 W; sizing power for cable selection: 6.5 VA.
• Power and control connection: 1 m cable, 2x 0.75 mm².
• Rated voltage range: AC 85...265 V.
• Rotation angle: max. 95°; adjustment 37...100% using the integrated mechanical stop.
• Motor and safety function direction of movement selected by L/R mounting.
• Shaft mounting: universal clamp 8...16 mm; mechanical position indicator.
• Degree of protection: IP54; ambient temperature: -30...50°C [-22...122°F].
• Manual override: no.