Selection Guide

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
81
Pr
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C
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Current t
o
New Generati
on
NF24-SR US, NF24-SR-S US
NFB24-SR, NFB24-SR-S,
NFX24-SR, NFX24-SR-S
Torque
60 in-lb [7 Nm] minimum 90 in-lb. [10 Nm] minimum
Running Time Motor
150 seconds constant, independent of load 95 seconds
Spring
< 60 seconds
20 seconds @ -4°F to 122°F [-20°C to 50°C];
<60 seconds @ -22°F [-30°C]
Noise Level
Max. 45 dB (A)
40dB(A) motor @ 95 seconds;
62dB(A) spring return
Motor Technology
Brushless DC Motor Brushless DC Motor
Overload Protection
Electronic throughout 0 to 95° rotation Electronic throughout 0° to 95° rotation
Operating Temperature
-22°F to +122°F [-30°C to +50°C] -22°F to 122°F [-30°C to 50°C]
OPERATION
Operating Humidity
5 to 95% RH non-condensing 5 to 95% RH, non-condensing
Operating Range 'Y'
2 to 10 VDC, 4 to 20mA 2 to 10 VDC, 4 to 20 mA
Input Impedance
100 kȍ (0.1 mA), 500 ȍ
100 kȍ for 2 to 10 VDC (0.1 mA); 500 ȍ for 4 to 20
mA
CONTROL
Feedback Output 'U'
2 to 10 VDC (max. 0.5 mA) for 95° 2 to 10 VDC (max 0.5 mA)
Dimensions
(L x W x H) [mm]
1.97"
3.15" [80]
3.86" [98]
3.25" [82.7]
2.24"
[57]
[50]
1.93"
[49]
2.64"
[67]
0.26" [6.5]
5.85" [148.5]
10.47" [266]
0.35" [9]
0.39" [10]
0.65" [16.5]
0.19" [5]
With Conduit Fitting
10.47" [266] x 3.86" [98] x 3.25" [82.7] 9.69" [246] x 3.86" [98] x 3.42" [87]
Shaft Dimensions
Up to 1.05” Up to 1.05”
Motor
Reversible with
built-in switch
Reversible with built-in switch
Direction of
Rotation
Spring
Reversible with CW/CCW mounting Reversible with CW/CCW mounting
Manual Override
N/A
5 mm hex crank (3/16" Allen),
supplied
Position Indication
Visual indicator, 0° to
95°
(0° is Spring Return
position)
Visual indicator, 0° to 95° (0° is
Spring Return position)
MOUNTING & COMMISSIONING
Angle of Rotation
95°, adjustable 30°
to 95° w/ ZDB-AF2
US accessory
95° (adjustable with mechanical end stop,
35° to 95°)
M40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc.