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NMB(X)24-SR(-T)
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CAN/CS
CE acc
08/EEC and 2006/95/EC
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Proportional, Non-Spring Return, 24 V, for 2 to 10 VDC or 4 to 20 mA
Technical Data NMB(X)24-SR(-T)
ower suppl
ower consumptio
ransformer sizin
lectrical connectio
verload protectio
perating range
nput impedance 100 kΩ (0.1 mA), 500
Angle of rotatio
Direction of rotatio
osition indicatio
anual overrid
unning tim
ty 5 to 95% RH non condensing
ent temperatur
torage temperature -40°F to 176°F [-40°C to 80°C]
ousin
ousing materia
Agency listings
oise leve
Servicin
uality standar
ht 1.7 lbs [0.75 k
24 VAC ± 20% 50/60 H
24 VDC ± 10%
2.5 W (0.4 W
5 VA (Class 2 power source
18 GA plenum rated cabl
1/2” conduit connector
protected NEMA 2 (IP54
3 ft [1m] 10 ft [3m] 16 ft [5m
electronic throughout 0 to 95° rotation
2 to 10 VDC, 4 to 20 m
max. 95°, adjustable with mechanical stop
90 in-lb [10 Nm
reversible with switc
actuator w
move
=CCW with decreasing control signal (10 to 2V
=CW with decreasing control signal (10 to 2V
reflective visual indicator (snap-on
external push butto
150 seconds 95 seconds 60 seconds 45 second
constant independent of load
60730-1
-22°F to 122°F [-30°C to 50°C
NEMA 2, IP54, UL enclosure type 2
94-5
cULus acc. to UL 60730-1A/-2-14,
A E60730-1:02,
. to 2004/1
<45dB(A
maintenance fr
ISO
1
Torque min. 90 in-lb for control of damper surfaces up to 22 sq ft
Applicatio
or proportional modulation of dampers in HVAC systems. Actuator sizing should be
done in accordance with the damper manufacturer’s specifications.
The actuator is mounted directly to a damper shaft up to 1.05" in diameter by means
of its universal clamp, 1/2” self centered default. A crank arm and several mounting
brackets are available for applications where the actuator cannot be direct coupled to
the dam
er shaft
The actuator operates in response to a 2 to 10 VDC, or with the addition of
500
resistor, a 4 to 20 mA control input from an electronic controller or positioner.
A 2 to 10 VDC feedback signal is provided for position indication or master-slave
app
cations
Operatio
The actuator is not provided with and does not require any limit switches, but is
electronically protected a
actuator w
revent lateral movement
The NMB(X) series provides 95° of rotation and a visual indicator indicates position of
e actuator. When reaching the damper or actuator end position, the actuator
t
automatically stops. The gears can be manually disengaged with a button on the
actuator cover.
The NMB
24-SR… actuators use a sensorless brushless DC motor, which is
controlled by an Application Specific Integrated Circuit (ASIC). The ASIC monitors and
controls the actuator’s rotation and provides a digital rotation sensing (DRS) function to
prevent
amage to the actuator in a stall condition.Power consumption is reduced in
mode
holdin
Add-on auxiliary switches or feedback potentiometers are easily fastened directly onto
the actuator body for signaling and switching functions
Dimensions (Inches [mm])
1/2” to 1.05” [12.7 to 26.67]
2/5” to 1.05” [10 to 26.67]
ainst overload. The anti-rotation strap supplied with the
2.36” [60]
3.66” [93]
4.88” [124]
3.15” [80]
0.98”
[25]
3.9” [99]
To center of
mounting slot.
2” [50.8]
2.42” [61.4]
121
NMB(X)24-SR-
trical connecti
screw terminal (for 26 to 14 GA wire
unprotected (NEMA 1/IP20
Rated Impulse Voltage 800V, Type of action 1, Control Pollution Degree 3
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
2
40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc.
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254
N
MB(X)24-SR(-T)
P
.
!
.
o
.
Live Electrical Components!
f
.
_
8
_
4 to 20 mA co
ol
NA
1
03
4
AV8-25
r
2
l
Tool
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0
h
s
NEMA
g
4
g
e
ADS-100
1
r
.
j
g
(
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Proportional, Non-Spring Return, 24 V, for 2 to 10 VDC or 4 to 20 mA
Accessories
ZG-100
ZG-10
ZG-1
ZG-10
ZG-NMA Crank arm Adaptor Kit
ZG-NMSA-1
ZS-T Terminal Cover for NEMA
ZS-100 Weather Shield - Stee
ZS-150 Weather Shield - Polycarbonate
-06 8 mm & 10 mm Wrenc
1A, S2A Auxiliary Switch (es
P37
P…A Feedback Potentiometer
A24
GF2
PTA-250 Pulse Width Modulation Interfac
-100
ZG-R0
NSV24 US Battery Back-Up Module
ZG-X40 Transforme
TE: When using NMB(X)24-SR… actuators, only use accessories listed on this page
Reversible Clamp
niversal Mounting Bracket
Universal Mounting Bracket
Universal Mounting Bracket
Universal Mounting Bracket
niversal Shaft Extension
haft Adapto
Shaft Mount Auxiliary Switc
n positioners in
4 housin
Min positioners for flush panel mountin
nput Rescaling Module
Analog to Digital Switch
Resistor for 4 to 20 mA Conversion
Typical Specification
Proportional control damper actuators shall be electronic direct-coupled type, which
equire no crank arm and linkage and be capable of direct mounting to a shaft up
to 1.05” diameter. Actuators must provide proportional damper control in response
to a 2 to 10 VDC or, with the addition of a 500
from an electronic controller or positioner. Actuators shall have brushless DC motor
technology and be protected from overload at all angles of rotation. Actuators shall
ave reversing switch and manual override on the cover. If required, actuator will
e provided with screw terminal strip for electrical connections (NMX24-SR-T). Run
time shall be constant and independent of torque. A 2 to 10 VDC feedback signal
shall be provided for position indication. Actuators shall be cULus listed, have a
, Inc.
5-year warranty, and be manufactured under ISO 9001 International Quality Control
tandards. Actuators shall be as manufactured by Belimo.
USA
resistor, a 4 to 20 mA control input
Wiring Diagrams
rovide overload protection and disconnect as required
AUTION
2
Actuators may be connected in parallel.
quipment Damage
ower consumption and input impedance must be observed.
Actuators may also be powered by 24 VDC.
nly connect common to neg. (–) leg of control circuits
The ZG-R01 500
resistor converts the 4 to 20 mA control signal t
2 to 10 VDC, up to 2 actuators may be connected in parallel
During installation, testing, servicing and troubleshooting of this product, it may be
ecessary to work with live electrical components. Have a qualifi ed licensed electrician or other
ndividual who has been properly trained in handling live electrical components perform these
tasks. Failure to
ents could result in death or serious injury
ollow all electrical safety precautions when exposed to live electrical compo-
2 to 10 VDC control
0
W261
08
W261
e. © Belimo Aircontrols
ect to chan
M40024 - 05/10 - Sub
ntr
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
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