Belimo AFB24-SR - AFB24-MFT N4;AFX24-MFT N4 Series

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
63
AFB24-MFT N4(H), AFB24-MFT-S N4(H), AFX24-MFT N4, AFX24-MFT-S N4
N
EMA 4, Proportional, Sprin
g
Return, Direct Coupled, 24V, Multi-Function Technolo
g
y
®
Technical Data AFB24-MFT N4(H), AFB24-MFT-S N4(H),
AFX24-MFT N4, AFX24-MFT-S N4
P
ower supp
l
y 24 VAC, +/- 20%, 50/60 H
z
24 VD
C
, +20%
/
-10%
P
owe
r
runn
i
n
g
7.5 W / heater 25 W
consum
p
tio
n
holdin
g
3 W
Transformer sizing 10 VA (
C
lass 2 power source)
/
heater 25 V
A
Electrical connectio
n
AFB... N4 3 ft, 18
G
A appliance cable, 1
/
2" conduit connecto
r
-
S
models: two 3 ft, 18 gauge appliance cables with
1
/
2” conduit connector
s
heater
(
N4H
)
terminal block, 26-16 G
A
AFX
...
N4
3
ft
[
1m
]
, 10 ft
[
3m
]
or 16 ft
[
5m
]
18
G
A appliance
cables, with 1/2” conduit connector
-S m
o
dels: two
3
f
t [1m], 10
f
t [3m] or
16 ft
[
5m
]
appliance cables with 1/2" conduit
connector
s
Overload protectio
n
electronic throu
g
hout 0 to 95° rotatio
n
Operatin
g
ran
g
e Y* 2 to 10 VDC, 4 to 20 mA
(
default
)
variable
(
VD
C
, PWM, floatin
g
point, on
/
off
)
Input impedanc
e
100 k
Ω
for 2 to 10 VDC
(
0.1 mA
)
500 Ω for 4 to 20 mA
1500
Ω
for PWM, floatin
g
point and on
/
off control
Feedback output U
*
2 to 10 VD
C
, 0.5 mA ma
x
T
orque
mi
n
i
mum 180
i
n-
lb
(
20
N
m
)
Direction o
f
spr
i
n
g
reversible with cw
/
ccw mounting inside housing
r
otation
*
motor reversible with built-in switch
M
ec
h
an
i
ca
l
an
g
le of rotation
*
95°
(
a
dj
usta
bl
e w
i
t
h
mec
h
an
i
ca
l
en
d
stop, 35° to 95°
)
Runnin
g
time
m
otor* 150 seconds
(
default
)
, variable
(
70 to 220 seconds
)
sprin
g
<20 sec @ -4°F to 122°F
[
-20°C to 50°C
]
;
<60 sec @ -22°F
[
-30°C
]
s
pr
i
ng
(
w
i
t
h
h
eater
)
<20 sec
@
-4°F to 122°F [-20°
C
to 50°
C
];
<60 sec
@
-49°F [-45°
C]
An
g
le o
f
Rotation
ada
p
tation
o
ff
(
de
f
ault
)
Override control*
m
in position = 0
%
mid
. pos
i
t
i
on = 50%
m
ax. pos
i
t
i
on = 100
%
P
os
iti
o
n in
d
i
ca
ti
on
visual indicator, 0° to 95
°
(
0°
i
s spr
i
n
g
return pos
i
t
i
on
)
Ma
n
ua
l
o
v
e
rri
de
5 mm hex crank
(
³⁄
₁₆" Allen
)
, supplied
H
um
idi
ty
m
ax. 95%
RH
non-con
d
ens
i
n
g
Ambient temperatur
e
-22°F to 122°F
(
-30°
C
to 50°
C)
w
ith heater -49°F to 122°F
(
-45°C to 50°C
)
S
tora
g
e temperature -40°F to 176°F
(
-40°C to 80°C
)
Housin
g
UL T
yp
e 4, NEMA 4, IP66
H
ous
i
ng mater
i
a
l
po
l
ycar
b
onate
N
o
i
se
l
e
v
el
≤
4
0dB
(
A
)
motor @ 150 seconds, run time dependen
t
≤
6
2
dB(A)
spr
i
n
g
return
A
g
ency listin
g
s
†
cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730
-
1:02,
C
E acc. to 2004
/
108
/
E
C
& 2006
/
95
/
E
C
Q
ualit
y
standard I
SO
9001
S
ervicing
ma
int
e
n
a
n
ce
f
r
ee
Wei
g
h
t
9.7 lbs.
(
4.4 k
g)
, 10 lbs.
(
4.5 k
g)
with switche
s
10.5
lb
s
(
4.8
k
g
)
w
i
t
h
h
eater
* Variable when confi
g
ured with MFT option
s
†
Rated Impulse Voltage 800V, Type of action 1.AA (1.AA.B for -S version), Control Pollution Degree 4.
Programmed
f
or 70 sec motor run time. At 150 sec motor run time, trans
f
ormer sizing
is 8.5 VA and power consumption is 6 W running / 3 W holding.
i
A
FB24-MFT-
S
N4(H), AFX24-MFT-
S
N
4
A
ux
ili
ary sw
i
tc
h
es 2 x
S
PDT 3A (0.5A)
@
250 VA
C
, UL approve
d
one set at +10°, one a
dj
usta
bl
e 10° to 90
°
Torque min. 180 in-lb
f
or control o
f
damper sur
f
aces up to 45 sq
f
t.
A
pp
l
i
cat
i
o
n
For proportional modulation of dampers in HVA
C
systems. Actuator sizing should be
done in accordance with the damper manu
f
acturer’s speci
fi
cations.
The actuator is mounted directly to a damper shaft up to 1.05" in diameter by means
of
its universal clamp.
The default parameters for 2 to 10 VD
C
applications of the …MFT actuator are
a
ssigned during manu
f
acturing. I
f
necessary, custom versions o
f
the actuators can
b
e ordered. The parameters can be chan
g
ed by two means: pre-set and custom
confi gurations from Belimo or on-site confi gurations using the Belimo PC-Tool
software
.
O
peratio
n
The actuator is not provided with and does not require any limit switches, but is
electronically protected a
g
ainst overload. The anti-rotation strap supplied with the
a
ctuator will
p
revent lateral movement
.
The AFB24-MFT N4
(
H
)
, AFB24-MFT-S N4
(
H
)
, AFX24-MFT N4, AFX24-MFT-S N4
p
rovides 95° of rotation and a visual indicator indicates
p
osition of the actuator. When
r
eac
hi
ng t
h
e
d
amper or actuator en
d
pos
i
t
i
on, t
h
e actuator automat
i
ca
ll
y stops.
Th
e
a
ctuator can be manually operated with the manual crank that is supplied a
f
ter the
cover is removed.
The AFB24-MFT N4(H), AFB24-MFT-
S
N4(H), AFX24-MFT N4, AFX24-MFT-
S
N4
a
ctuators use a brushless DC motor, which is controlled by an Application Specifi c
Inte
g
rated Circuit
(
ASIC
)
. The ASIC monitors and controls the actuator’s rotation and
p
rovides a digital rotation sensing (DRS) function to prevent damage to the actuator in
a
stall condition.Power consumption is reduced in holdin
g
mode
.
A
dd-on auxiliar
y
switches or feedback
p
otentiometers are easil
y
fastened directl
y
o
nto the actuator body
f
or si
g
nalin
g
and switchin
g
f
unctions.
Dimensions (inches [mm])
6.77” [172]
Clamp Congurations
1/2” Field Selectable 3/4” Centered 1.05” Centered
(Default) (Field Selectable)
12.99” [330]
6.45” [163.9]
0.39” [10]
0.92” [23.4]
3.62” [92.1]
9.37” [238] 1.12” [28.5]
3.36” [85.2]
3.5” [0.14]
0.81” [20.5]
1.17” [29.8] 0.79” [20]
D
312_Confi
g
N40103 - 09/11 - Subject to change. © Belimo Aircontrols (USA), Inc
.