LF24-MFT US | Belimo | Actuators & Dampers
Damper Actuator, 35 in-lb, Spring Return, 24V, MFT
Brand:Belimo
MPN:LF24-MFT US
SKU:LF24-MFT
List Price:
$867.00
Today's Price:
$450.84
product specifications
Actuator Series
LF
Agency Listings
cULus acc. To UL 873 and CAN/CSA C22.2 No. 24-93
Ambient Temperature Range
-22 to 122 °F (-30 to 50 °C)
Angle of Rotation
95°
Application Type
Air
Electrical Connection
3ft 1m, 18 GA appliance cable with 1/2 in conduit connector
Feedback Output U
2 to 10 VDC, 0.5 mA max, VDC variable
Housing
NEMA 2, IP54
Housing Material
Zinc Coated Steel
Humidity
max. 95% RH non-condensing
Input Impedance
100 k Ω for 2 to 10 VDC (0.1 mA), 500 Ω for 4 to 20 mA, 1500 Ω for PWM, floating point and On/Off
Position Indication
visual indicator, 0° to 95° (0° is full spring return position)
Power Consumption Holding
1 W
Power Consumption Running
2.5 W
Power Supply
24 VAC ± 20%, 50/60 Hz, 24 VDC ± 10%
Power Supply Type
24V
Quality Standard
ISO 9001
Running Time
MFT (20 to 300 seconds)
Servicing
maintenance free
Shaft Diameter
3/8 in to 1/2 in round, centers on 1/2 in
Storage Temperature Range
-40 to 176 °F (-40 to 80 °C)
Supply Voltage
24 VAC
Torque
35 in-lb
Transformer Sizing
5 VA (class 2 power source)
Unit of Measure
PC
Supply Va
5 VA
Control Signal
MFT (Configurable)
product series specifications
- Input Impedance:
- :
- -SR Models 100 kΩ @ 0/2-10 VDC; 500Ω @ 4-20 mA
- :
- -MFT Models 100 kΩ @ 0/2-10 VDC; 500Ω @ 4-20 mA; 1500Ω @ PWM, float, on/off
- Motor:
- Brushless DC
- Manual Override:
- Manual crank (except TF)
- Wiring:
- :
- TFB,LF 3' (0.9 m) cable, 18 AWG, plenum rated (modulating models)
- :
- 3' (0.9 m) appliance cable (on/off, MFT, -S models)
- :
- NFB, AFB, EFB 3' (0.9 m) appliance cable, 18 AWG
- :
- NEMA 4 Terminal blocks inside housing
- Conduit Connection:
- :
- w/Cables 1/2‚Ä= NPT
- :
- NEMA 4 Four knockouts for waterproof conduit fittings
- Feedback:
- 2-10 VDC (-SR and -MFT models only)
- Auxiliary Switch:
- :
- TFB, LF (-S) 1 SPDT, 3A @ 250V
- :
- NFB, AFB, EFB (-S) 2 SPDT, 3A @ 250V
- Action:
- :
- 2-Position CW/CCW reversible mounting
- :
- Float/Prop. DA/RA switch, CW/CCW rev. mt.
- Spring Return Time:
- <60 seconds
- Rotation:
- 95°
- Noise:
- :
- TFB, LF, NFB <62 db
- :
- AFB <45 db
- :
- EFB <71.4 db
- Resolution:
- 100 steps
- Life Expectancy:
- :
- 2-Position 60,000 cycles
- :
- Float/Prop. 60,000 cycles; 500,000 repositions
- Operating Temperature:
- -22° to 122°F (-30° to 50°C); NEMA 4 models with heater option can go down to -40‚Ñâ (-40‚ÑÉ)
- Operating Humidity:
- 5 to 95% RH
- Enclosure Rating:
- :
- TFB NEMA 2 (IP42)
- :
- LF, NFB, AFB, EFB NEMA 2 (IP54)
- :
- NEMA 4 NEMA 4 (IP66)
- Approvals:
- cULus, CE, RoHS
- Warranty:
- 5 years
product series features
- Symmetrical, reversible rotation design for installation flexibility
- ISO 9001 manufacturing facility assures high quality
- NEMA 4 Enclosure Rating for outdoor locations available on AFB, EFB and NFB models
- Low power consumption for high efficiency and smaller transformer sizing
- MFT models offer flexibility to customize and adapt a single actuator to various controllers and applications
more information & related documents
Series Description
The Belimo TFB, Belimo LF, Belimo NFB, Belimo AFB, and Belimo EFB Series direct-coupled air damper actuators provide control of dampers and valves for spring return applications. The damper actuators come in two-position, tri-state, proportional, and Multi-Function Technology (MFT) models. All include spring return to drive the damper or valve to a normal position when power is lost. Unique universal power supply models work with 24 Volt AC to 240 Volt AC or 24 Volt DC to 125 Volt DC. The new EFB Series is true spring return with a high 270 in-lb torque output and most models are available with optional NEMA 4 housing. It is possible to dual-mount EF actuators on one shaft, for a total of 540 in-lb. This actuator series is indispensable for Building Automation System BAS and HVAC applications.
Kele Description
ACT/SR/35INLB(4NM)/ 24VAC/VDC/MFT/2-10VDC
Manufacturer
Belimo
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