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FSNF230-SUS Datenblatt(PDF) 1 Page - BELIMO AIRCONTROLS (USA), INC
V, 15 s
BELIMO [BELIMO AIRCONTROLS (USA), INC]
FSNF230-SUS Datenblatt(HTML) 1 Page - BELIMO AIRCONTROLS (USA), INC
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230 VAC, ±10%, 50/60 Hz
Power consumption in operation 27 VA
Power consumption in rest
5 W, 9 VA (60 Hz 6.5 VA), End stop 55 VA,
0.25 A slow blow fuse *
1/2...1.05” round, centers on 1/2” and 3/4”
with insert, 1.05” without insert
18 GA, 3 ft [1 m], 3 color coded wires
electronic throughout 0...95° rotation
grounded enclosure, 230 V
Angle of rotation
70 in-lb [8 Nm] from 32...350°F [0...177°C]
Direction of motion motor
selectable by ccw/cw mounting
Direction of motion fail-safe
reversible with cw/ccw mounting
Running Time (Motor)
15 s between 32...350°F [0...177°C], <15 s
at rated voltage & torque
Running time fail-safe
max. 95% r.H., non-condensing
Degree of Protection
IP40, NEMA 1
steel, permanently lubricated
cULus listed to UL873 and CAN/CSA C22.2
No.24, UL 2043 Listed for air plenum
installation per NEC 300.22 and IMC Section
NYC Department of Buildings MEA 197-
07-M.California State Fire Marshal Listing
Noise level, motor
Noise level, fail-safe
7.2 lb [3.3 kg]
2 x SPDT, 7 A resistive (2.5 A inductive) @
AC 250 V, one set at 10°, one set at 85°
† UL File XAPX.E108966
Fire & Smoke damper actuator
The type FSNF spring-return actuator is intended for the operation of smoke
and combination fire and smoke dampers in ventilation and air-conditioning
systems. The actuator will meet requirements of UL555 and UL555S when
tested as an assembly with the damper and will meet requirements of UBC for
15 second opening and closing. Square footage of damper operated will depend
on make and model and the temperature required.
Mounting of the actuator to the damper shaft or jackshaft (3/8” to 1.05”) is via
a cold-weld clamp. Teeth in the clamp and V-bolt dig into the metal of both solid
and hollow shafts maintaining a perfect connection. The specially designed
clamp will not crush hollow shafts. The bottom end of the actuator is held by an
anti-rotation strap or by a stud provided by the damper manufacturer.
The actuator is mounted in its fail safe position with the damper blade(s) closed.
Upon applying power, the actuator drives the damper to the open position. The
internal spring is tensioned at the same time. If the power supply is interrupted,
the spring moves the damper back to its fail-safe position.
1/2" to 1.05"
3/8" to 3/4"
*with K4 US clamp
* Neither UL nor Belimo require local over-current protection. The FSNF
actuators draw higher peak current when driving against any type of stop. If
used, this requires the value of a local fuse or breaker to be increased to avoid
nuisance opening or tripping. A 2.5 A slow blow should be used for AC 24 V.
A 0.5 A slow blow should be used for AC 120 V. A 0.25 A slow blow should be
used for 230 V and a 0.3 A slow blow for AC 208 V. Transformers: Note that
while a 24 V 100 VA transformer would handle 2 actuators, a 4 A breaker or
plug fuse is insufficient. A 5 A slow blow would be required.
Belimo Fire & Smoke actuators have passed the AMCA 520 and UL 555S Long
Term Holding test. No special cycling is required during prolonged periods
when actuator is driven open and held there. Periodic testing of dampers and
actuators per local codes and NFPA 80 and NFPA 105 are required.
The actuator contains no components which the user can replace or repair.
A 1/2” threaded connector is standard. FSNFxx-FC models have a 3/8” Flex
Connector. Other than the connector, these actuators are identical to the
conduit connector version.
FSNF230-S US Technical Data Sheet
On/Off, Spring Return, 350°F [177°C] for half an hour, AC 230 V, 15 s Cycle Time
203-791-8396 LATIN AMERICA / CARIBBEAN
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