800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
NFBUP, NFBUP-
, NFXUP, NFXUP-
On/Off, Sprin
Return, 24 to 240 VAC
orque min. 90 in-lb, for control of air dampers
A
l
cat
o
or On/Off, fail-safe control of dampers in HVAC systems. Actuator sizing should be
one in accordance with the damper manufacturer’s specifications. Control is On/Off
rom an auxiliary contact, or a manual switch.
he actuator is mounted directl
to a dam
er shaft u
to 1.05” in diameter b
means
f its universal clamp. A crank arm and several mountin
brackets are available for
pplications where the actuator cannot be direct coupled to the damper shaft
peratio
he NFB and NFX series actuators provide true spring return operation for reliable fail-
afe application and positive close off on air ti
ht dampers. The sprin
return system
rovides constant tor
ue to the dam
er with, and without,
ower a
lied to the
ctuator
he NFB and NFX series provides 95° of rotation and is provided with a graduated
osition indicator showin
0° to 95°.
he actuator ma
be stalled an
where in its normal rotation without the need of
m
h
ni
l
n
wit
h
he NFBUP-
and NFXUP-
versions are provided with two built-in auxiliary switches.
hese SPDT switches provide safety interfacing or signaling, for example, for fan start
p. The switchin
unction at the
ail-sa
e position is
ixed at +10°, the other switch
function is ad
ustable between +10° to +90°. The NFBUP, NFBUP-
, NFXUP and
FXUP-S actuator is shipped at +5°
5° from full fail-safe
to provide automatic
ompression against damper gaskets for tight shut-off
Dimensions (Inches [mm])
K7-2 (supplied)
1/2" Centered
(Default)
3/4" Centered
(Field Selectable)
1.05" Centered
(Field Selectable)
WAFBNFBDi
Technical Data NFBUP, NFBUP-S, NFXUP, NFXUP-S
ower supp
y 24...240 VA
-20%
+10%, 50
60 Hz
24...125 VDC ±10%
Power consum
tio
runnin
6 W
holdin
2.5 W
Trans
ormer sizin
6 VA @ 24 VAC
class 2 power source
6.5 VA @ 120 VA
9.5 VA @ 240 VA
El
tri
l
nn
ti
..
ft, 18
A appliance cable, 1
2" conduit
connec
o
-S m
dels
Two 3 ft, 18 gauge appliance cables
ith 1/2” conduit connector
NFXUP..
ft [1m], 10 ft [3m] or 16 ft [5m] 18 G
a
liance cable, with or without 1/2” conduit
connecto
-S m
dels
two 3
t
1m
, 10 ft
3m
or
16 ft [5m] appliance cables with or without 1
2"
conduit connectors
Overload protectio
electronic throu
hout 0 to 95° rotation
Contro
on/of
Tor
ue 90 in-lb
10 Nm
minimu
Direction o
rotatio
spr
ng
eversible with
W
W mounting
Mechanical an
le o
rotation 95°
ad
ustable with mechanical end stop,
5° to 95°
Runnin
tim
mo
o
< 7
n
pring
20 seconds
-4°F to 122°F
-20°
to 50°
;
< 60 seconds @ -22°F
-30°C
P
iti
n in
i
ti
isual indicator, 0° to 95
0° is full sprin
return position
Manual overrid
mm hex crank
₁
Allen
, supplied
Humidit
max. 95% RH non-condensin
m
ent temperatur
-22°F to 122°F [-30°
to 50°
]
torage temperatur
-40°F to 176°F [-40°
to 80°
]
Housin
Nema 2, IP54, Enclosure Type
Housin
material zinc coated metal and plastic casin
gency
st
ngs
cULus acc. to UL60730-1A
-2-14,
AN/CSA E60730-1:02, CE acc. to
2004
108
E
& 2006
95
E
N
i
l
v
l <50dB(A) motor
75 second
≤62dB(A) spring return
ervicin
maintenance
ree
uality standar
I
Wei
h
4.15 lbs
1.9 k
, 4.4 lbs
2.0 k
with switche
† Rated Impulse Voltage 4kV, Type of action 1.AA (1.AA.B for -
version),
ontrol Pollution Degree 3.
NFBUP-
, NFXUP-
Auxiliar
switche
2 x SPDT 3A
0.5A
@ 250 VAC, UL approve
one set at +10°, one ad
ustable 10° to 90°
M40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc.
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