NFB24-SR-S

NFB24-SR-S | Belimo | Actuators & Dampers

Damper Actuator, 90 in-lb, Spring Return, 24V, Modulating, SW

Manufacturer:Belimo

MPN:NFB24-SR-S

SKU:NFB24-SR-S

list price:

687.16

343.58



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USD

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°F to 122°F [-30°C to 50°C]

Angle of Rotation

95°

Application Type

Air

Auxiliary Switch

2 SPDT

Control

2-10 VDC

Control Type

Modulating

Description

Damper Actuator, 90 in-lb, Spring Return, 24V, Modulating, SW

Direction of Rotation (Fail-Safe)

reversible with CW/CCW mounting

Direction of Rotation (Motor)

reversible with built-in switch

Electrical Connection

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

Fail-Safe

Spring Return

Feedback Output U

2 to 10 VDC, 0.5 mA max

Housing

NEMA 2, IP54, UL enclosure type 2

Housing Material

zinc coated metal and plastic casing

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

Manual Override

5 mm hex crank (3/16" Allen), supplied

Noise Level (Motor)

≤40 dB (A)

Position Indication

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

Power Consumption Holding

2.5 W

Power Consumption Running

3.5 W

Power Supply

24 VAC±20%, 50/60Hz, 24 VDC+20%/-10%

Power Supply Type

24V

Product family

Damper Actuator

Quality Standard

ISO 9001

Running Time

95 seconds

Running Time (Fail-Safe)

<20 sec @ -4°F to 122°F [-20°C to 50°C], < 60 sec @ -22°F [-30°C]

Running Time (Motor)

95 sec

Servicing

maintenance free

Shaft Diameter

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

Storage Temperature Range

-40°F to 176°F [-40°C to 80°C]

Torque

90 in-lbs [10 Nm] minimum

Transformer Sizing

6 VA (class 2 power source)

Unit of Measure

PC

product family 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

Family 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/2-10VDC

Manufacturer

Belimo

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