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General Air Solutions

Actuator selection tool

Non fail-safe actuators
Rotary actuators
- CM (2 Nm)
- TM..A (2 Nm)
- LM..A (5 Nm)
- NM..A (10 Nm)
- SM..A (20 Nm)
- GM..A (40 Nm)
Linear actuators
- CH (125 N)
- LH..A (150 N)
- SH..A (450 N)

Fail-safe actuators
Rotary actuators
- TF (2.5 Nm)
- LF (4 Nm)
- NF..A (10 Nm)
- SF..A (20 Nm)
- EF..A (30 Nm)

Rotary actuators
- NM..P (10 Nm)
- SM..P (20 Nm)
- NKQ24P.. (6 Nm)

IP66/NEMA4 Damper actuators
Rotary actuators
- GM..G (40 Nm)
- SMQ..G (16 Nm)
Fail-safe actuators
- GK..G (40 Nm)
Fail-safe actuators
- NF..G (10 Nm)
- SF..G (20 Nm)

Very fast-running actuators
Rotary actuators
- LMQ..A (4 Nm/2.5s)
- NMQ..A (8 Nm/4s)
- NMD..A (8 Nm/20s)
- SMQ..A (16 Nm/7s)
- SMD..A (16 Nm/20s)
Linear actuators
- LHQ..A (100 N)
- SHQ..A (200 N)

Fail-safe actuators
Module SKM..
+ CM24K..
Rotary actuators
- NKQ..A (6 Nm)
- GK..A (40 Nm)
Linear actuators
- LHK..A (150 N)
- SHK..A (450 N)

Actuators with high torque
Rotary actuators
- PMCA (160 Nm)
Fail-safe actuators
- PKCA (160 Nm)

Actuator overview
Water Solutions
Safety Solutions
Room & System Solutions
(incl. VAV and room temperature controllers)
Bus & System Integration
Products A to Z
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LF Damper actuators 4 Nm
 For dampers with security function up to approx. 0.8 m²
 up to 95° angle of rotation
Universal spindle clamp 8...16 mm

The product may differ from the illustration

Rotary actuator fail-safe 4 Nm
AC/DC 24 V, modulating
Running time motor 150 s / 90°
Running time fail-safe <20 s / 90°
Operating range 2...10 V
Position feedback 2...10 V
IP54, Manual override No
Connection Cable 1 m PVC
Direction of motion motor selectable with switch L/R
Mechanical interface Universal shaft clamp 8...16 mm


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PDF Data Sheets Accessories CAD Files BIM Plug-in Download
Single room temperature controller CE Declaration of Conformity

PDF Data Sheets for LF24-SR Send PDFs for other items
Technical data, wiring diagram, dimensions (PDF - 337 kb) Send Data Sheet
Mounting instruction (PDF - 213 kb) Send Data Sheet
Typical control functions (PDF - 80 kb) Send Data Sheet
Whole technical brochure (PDF - 757 kb) Send Data Sheet

Accessories for LF24-SR
AV6-20   Shaft extension 170 mm Ø10 mm
clamping range Ø6...16 mm
Galvanised steel

AV8-25   Shaft extension 240 mm Ø20 mmAttention: only for use with K6-1
clamping range Ø8...22.7 mm
Galvanised steel

CRP24-B1   Positioner for wall mounting
Range 0...100%
AC/DC 24 V, from ..M230ASR
Output 0...10 V / 2...10 V switchable

K6-1   Shaft clamp reversible
for LF..
clamping range Ø16...20 mm

KG10A   Ball joint
suitable for damper crank arm KH8 / KH10
for round iron rods with ∅ 10 mm

KG8   Ball joint
suitable for damper crank arm KH8
for round iron rods with ∅ 8 mm

KH8   Damper crank arm
Galvanised steel
Slot width 8.2 mm
clamping range Ø10...18 mm

KH-LF   Actuator arm
Galvanised steel
for LF..
clamping range Ø8...16 mm

P200A-F   Feedback potentiometer 200 Ω
incl. installation accessories
Cable 1 m FRNC

S2A-F   Auxiliary switch 2 x SPDT
1mA...3 (0.5) A, AC 250 V
Adjustable switching point 0...100 %
incl. installation accessories

SBG24   Range controller for wall mounting
Electronically adjustable min./max. angle of rotation limiting
only ...-SR, ...-MF, ..-MP
Terminals 4 mm²

SGA24   Positioner for wall mounting
operating range selectable
0...10 V or 2...10 V

SGE24   Positioner for built-in mounting
operating range selectable
0...10 V or 2...10 V

SGF24   Positioner for front-panel mounting
operating range selectable
0...10 V or 2...10 V

ZDB-LF   Angle of rotation limiter
for LF.., with end stop
Galvanised steel

ZF8-LF   Shaft adapter
For damper spindles, with form-fit 8 x 8 mm

ZG-LF1   Mounting kit for linkage operation
for flat installation

ZG-LF3   Mounting kit for linkage operation
for side installation

Z-UIC   Signal converter voltage/current
Supply AC/DC 24 V
Input 0(2)...10 V or 0(4)...20 mA
Output 0(4)...20 mA

Safety notes

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