THE
BELIMO NF120 US ACTUATOR HAS BEEN MADE OBSOLETE BY THE
MANUFACTURER. PLEASE
REFER TO THE NEW REPLACEMENT MODEL FROM BELIMO, ITEM # NFBUP.
CALL 800 - 360 - 3324 IF YOU NEED FURTHER ASSISTANCE. THANK
YOU!
The Belimo NF120 US direct mount damper actuator is designed
for the On/Off, fail-safe control of dampers in HVAC systems. Actuator
sizing should be done in accordance with the damper manufacturer’s
specifications. The NF120 US is On/Off from an auxiliary contact, or a
manual switch, and the actuator may be mounted directly to a damper
shaft, up to 1.05” in diameter, by means of its universal clamp. A
crank arm and several mounting brackets are available for other
applications.
The NF120 US provides true spring-return operation for
reliable fail-safe application and positive close off on air tight
dampers. The spring return system provides constant torque to the
damper with, and without, power applied to the actuator. Provides 95°
of rotation and is provided with a graduated position indicator showing
0° to 95°. May be stalled anywhere in its normal rotation without the
need of mechanical end switches.
Product Specifications
| Power
supply |
120
VAC ± 10% 50/60 Hz |
| Power
consumption |
running
7 W, holding 4 W |
| Transformer
sizing |
9.5
VA |
| Electrical
connection |
3
ft, 18 GA appliance cable, 1/2” conduit connector |
| Overload
protection |
Electronic
throughout 0 to 95° rotation |
| Electrical
protection |
Auxiliary
switches are double insulated |
| Angle
of rotation |
95°,
adjustable 30 to 95° w/ accessories |
| Torque |
60
in-lb [7 Nm] constant torque |
| Direction
of rotation |
reversible
with CW/CCW mounting |
| Position
indication |
visual
indicator, 0° to 95°, (0° is spring return position) |
| Running
time motor |
<
75 sec |
| Running
time (nominal) spring |
<
60 sec |
| Humidity |
5
to 95% RH non-condensing |
| Ambient
temperature |
-22°F
to 122°F [-30°C to 50°C] |
| Storage
temperature |
-40°F
to 176°F [-40°C to 80°C] |
| Housing |
NEMA
type 2 / IP54 |
| Housing
material |
zinc
coated steel |
| Agency
listings |
cULus
acc. to UL 873 and CAN/CSA C22.2 No. 24-93 |
| Noise
level |
max.
45 dB (A) |
| Servicing |
maintenance
free |
| Quality
standard |
ISO
9001 |
| Weight |
7.3
lbs (3.3 kg) |
