Selection Guide

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
7
4
NFB24-MFT
,
NFB24-MFT-
S,
NFX24-MFT
,
NFX24-MFT-
S
Proportional, Sprin
g
Return, Multi-Function Technolo
g
y
®
NFB24-MFT-S
NFX24-MFT-S
Auxiliary
S
witches
f
or NFB24-MFT-
S
, NFX24-MFT-
S
W600_AW399_08
V
DC/4-20 mA
W399_08
PWM
M
W
399_08
On/Off control
Off l
W
399_08
F
loatin
g
Point contro
l
Accessories
A
V 8-2
5
S
haft extension
IND
-
AFB
Dam
p
er
p
osition indicator
KH
-
AFB
C
r
a
nk
a
rm
K
7-
2
Universal clamp
f
or up to 1.05” dia jacksha
f
ts
TF-CC US Conduit fitting
Tool-0
6
8mm and 10 mm wrenc
h
ZG-10
0
Universal mounting bracket
Z
G
-1
01
Universal mounting bracket
ZG-118 Mounting bracket for Barber Colma
n
®
MA 3../4.., Honeywell
®
M
od
III
o
r IV
o
r
Jo
hn
son
®
Series 100 re
p
lacement or new crank
arm type
i
nsta
ll
at
i
on
s
Z
G
-AF
B
Crank arm adaptor kit
Z
G
-AFB118
C
rank arm adaptor kit
Z
S
-100 Weather shield (metal
)
ZS-150 Weather shield
(
polycarbonate
)
ZS-260
E
xplosion-proof housin
g
ZS-300
NEMA
4
X
h
ous
i
ng
NOTE: When using NFB24-MFT, NFB24-MFT-S, NFX24-MFT and NFX24-MFT-S actuators, only use
accessories listed on this pa
g
e.
For actuator wiring information and diagrams, refer to Belimo Wiring Guide.
Typical Specification
Sprin
g
return control damper actuators shall be direct coupled type which require no
crank arm and linka
g
e and be capable of direct mountin
g
to a
j
ackshaft up to a 1.05”
di
ameter.
Th
e actuator must
p
rov
id
e
p
ro
p
ort
i
ona
l
d
am
p
er contro
l
i
n res
p
onse to a 2 to
10 VD
C
or, with the addition of a 500
Ω
resistor, a 4 to 20 mA control input
f
rom an
el
ectron
i
c contro
ll
er or pos
i
t
i
oner.
Th
e actuators must
b
e
d
es
i
gne
d
so t
h
at t
h
ey may
b
e
u
sed
f
or either clockwise or counterclockwise
f
ail-sa
f
e o
p
eration. Actuators shall use
a brushless DC motor controlled b
y
a micro
p
rocessor and be
p
rotected from overload
at all an
g
les o
f
rotation. Run time shall be constant, and independent o
f
torque. A 2 to
10 VD
C
feedback signal shall be provided for position feedback. Actuators shall be
cULus Approved and have a 5 year warranty, and be manufactured under ISO 9001
International Quality Control Standards. Actuators shall be as manufactured by Belimo
.
Wiring Diagrams
1
Provide overload
p
rotection and disconnect as re
q
uired
.
2
C
AUTI
ON
E
qu
i
pment
D
amage
!
Actuators may be connected in parallel i
f
not mechanically mounted to the same
sha
f
t. Power consumption and input impedance must be observed.
3
Actuators may also be powered by 24 VD
C.
4
Position
f
eedback cannot be used with Triac sink controller
.
T
he actuator internal common re
f
erence is not compatible.
5
Control si
g
nal may be pulsed from either the Hot
(
source
)
or the
C
ommon
(
sink
)
24 VA
C
line
.
8
Co
nt
ac
t
c
l
osu
r
es
A
&
B
a
l
so
ca
n
be
tri
acs.
A & B should both be closed for triac source and open for triac sink
.
9
For triac sink the common connection
f
rom the actuator
m
ust be connected to the hot connection o
f
the controller
.
M
eets UL requirements without the need o
f
an electrical
g
round
co
nn
ec
ti
o
n
.
T
h
e
Z
G
-R
0
1
500
Ω
resistor ma
y
be used.
W
ARNIN
G
Live Electrical Com
p
onents
!
D
ur
i
ng installation, testing, servicing and troubleshooting of this product, it may be
necessar
y
to work with live electrical com
p
onents. Have a
q
ualifi ed licensed electrician
or ot
h
er
i
n
di
v
id
ua
l
w
h
o
h
as
b
een proper
l
y tra
i
ne
d
i
n
h
an
dli
ng
li
ve e
l
ectr
i
ca
l
components
perform these tasks. Failure to follow all electrical safety precautions when exposed to
li
ve e
l
ectr
i
ca
l
components cou
ld
resu
l
t
i
n
d
eat
h
or ser
i
ous
i
n
j
ury
.
M40024 - 05/10 - Sub
j
ect to chan
g
e. © Belimo Aircontrols
(
USA
)
, Inc.