LF24

Description

APPLICATION

DESIGN

The LF series actuators with actuating torque 4 Nm are designed for controlling air dampers with cross section up to 0.8 m² installed in various ventilation and air conditioning systems and performing protection functions, as freezing protection, smoke detection, etc.

The actuator moves the damper to its operating position while tensioning the return spring at the same time.
In case of power supply cut-off, the damper moves back to its safe position by the spring energy.
The actuator is installed directly on the damper axis and locked with a special spindle clamp to prevent its turning-through.
The actuator overload protection stops the actuator once it reaches the end positions.
The turning angle may be adjusted by a mechanical end stop.

Characteristics

Parameter	LF24	Measurement unit
Voltage	AC/DC 24	V
Frequency	50/60	Hz
Nominal voltage range	AC 19,2…28,8 / DC 21,6…28,8	V
Rated power	7 (макс. I 5,8 А при t = 5 мс)	VA
Power consumption in operation	5	W
Power consumption at rest	2.5	W
Connecting cable	1 m long, 2 x 0.75 mm²	-
Rotation direction	выбирается установкой L/R	-
Torque motor	4 (при номинальном напряжении)	Nm
Torque spring	4	Nm
Rotation angle:	max. 95°, adjustable 37…100% with a mechanical end stop	-
Running time motor	40…75 (0…4 Nm)	sec
Running time spring	~20 at -20…50 °C	sec
Service life	60 000 срабатываний	-
Protection rating	IP 54	-
Electrical protection class		-
Operation temperature	-30...+50	°С
Storage temperature	-40…+80	°С
Ambient humidity	95%, без конденсации	-
Noise level motor	50	dBА
Noise level spring	~62	dBА
Maintenance	not required	-
Weight	1.4	kg

Files archieve

Downloads

Dimensions

Characteristics

Parameter	Value	Measurement unit

Wiring plan

VENTS LF24