NFB24-S

NFB24-S | Belimo | Actuators & Dampers

Damper Actuator, 90 in-lb, Spring Return, 24V, On/Off, SW

Brand:Belimo

MPN:NFB24-S

SKU:NFB24-S

List Price:

$604.00

Today's Price:

$314.08



Availability: Usually Ships in Less Than 12 Business Days
Available Inventory
Lead times are estimates based on our Memphis location and subject to change without notice based on customer demand.

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product specifications

Actuator Series

NFB(X)

Agency Listings

cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. to 2004/108/EC and 2006/95/EC

Ambient Temperature Range

-22 to 122 °F (-30 to 50 °C)

Angle of Rotation

95°

Application Type

Air

Auxiliary Switch

2 SPDT

Electrical Connection

(2) 3ft 1m, 18 GA appliance cables with 1/2 in conduit connectors

Housing

NEMA 2, IP54, UL Enclosure Type 2

Housing Material

Zinc Coated Metal and Plastic Casing

Humidity

max. 95% RH non-condensing

Manual Override

5mm Hex Crank (3/16 in Allen), Supplied

Position Indication

visual indicator, 0° to 95° (0° is full spring return position)

Power Consumption Holding

2.5 W

Power Consumption Running

6 W

Power Supply

24 VAC±20%, 50/60Hz, 24 VDC+20%/-10%

Power Supply Type

24V

Quality Standard

ISO 9001

Running Time

<75 seconds

Servicing

maintenance free

Shaft Diameter

1/2 in to 1.05 in round, centers on 1/2 in and 3/4 in with insert, 1.05 in without insert

Storage Temperature Range

-40 to 176 °F (-40 to 80 °C)

Supply Voltage

24 VAC

Torque

90 in-lb

Transformer Sizing

8.5 VA (class 2 power source)

Unit of Measure

PC

Supply Va

8.5 VA

Control Signal

On/Off, Aux Switch

product series specifications

    Input Impedance:
    :
  • -SR Models 100 k‚Ѷ @ 0/2-10 VDC; 500‚Ѷ @ 4-20 mA
    :
  • -MFT Models 100 k‚Ѷ @ 0/2-10 VDC; 500‚Ѷ @ 4-20 mA; 1500‚Ѷ @ 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/90INLB(10NM)/ 24V/ON/OFF

Manufacturer

Belimo

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