Technical Data
1454
Power Supply
120 VAC, ±10%, 50/60 Hz
Power consumption in operation 18 VA
Power consumption in rest
position
4 W, 5.5 VA (50 Hz 8 VA), End stop 27 VA,
0.25 A slow blow fuse *
Shaft Diameter
3/8” to 1/2” round, centers on 1/2”
Electrical Connection
3 ft [1 m], 18 GA appliance cable with 1/2”
conduit connector
Overload Protection
electronic throughout 0° to 95° rotation
Electrical Protection
grounded enclosure, 120V
Angle of rotation
95°
Torque motor
30 in-lb [3.5 Nm] from 32...350°F
[0...177°C]
direction of rotation motor
reversible with CW/CCW mounting
direction of rotation spring-return reversible with CW/CCW mounting
Position indication
visual indicator, 0° to 95° (0° is full spring
return position)
Running time motor
<15 sec at rated voltage and torque
32...122°F [0...50°C]
Running time emergency control
position
<15 sec
Ambient humidity
5 to 95% RH non-condensing
Ambient temperature
32...122°F [0...50°C]
Non-operating temperature
-40...176°F [-40...80°C]
Degree of Protection
IP30, NEMA 1
Housing material
zinc coated steel
Agency Listing
cULus acc. to UL60730-1A/-2-14, CAN/
CSA E60730-1:02, Listed to UL 2043 -
suitable for use in air plenums per Section
300.22(C) of the NEC and Section 602 of
the IMC.
NYC Department of Buildings MEA 197-
07-M
California State Fire Marshal Listing 3210-
1593:102
Noise Level (Fail-Safe)
45 dB (A) motor, 62 dB (A) spring,
inaudible holding
Maintenance
maintenance free
Quality Standard
ISO 9001
Weight
4.13 lb [1.8 kg]
† UL File XAPX.E108966
Fire & Smoke damper actuator
Application
The type FSLF 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.
IMPORTANT 24VDC NOTE: The FSLF24 & -S models will not operate below
24VDC. A filtered and regulated power supply must be used.
Operation
Mounting of the actuator to the damper axle shaft or jackshaft 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.
Dimensions (Inches[mm])
[57]
2.24"
[19]
0.75"
[6]
0.24"
[179]
7.03"
[173]
6.81"
[11]
0.45"
[28]
1.1"
[12.7]
min
0.5"
[20]
max
0.79"
[98]
3.86"
[138]
5.42"
1.18"
[30]
0.2"
[5]
Safety Notes
* Neither UL nor Belimo require individual fusing of FSLF actuators.
The FSLF draws higher peak current when driving against its end stop or any
other type of stop. Given the technology of fuses & breakers, this requires the
value of fuse or breaker to be increased to avoid nuisance opening or tripping.
A 1 amp slow blow should be used for 24VAC. A 0.25 amp slow blow should
be used for 120VAC. A .125 amp slow blow should be used for 230V.
SAFETY NOTES
Wiring and installation must comply with all local electrical and mechanical
codes.
The actuator contains no components which the user can replace or repair.
Cables are not plenum rated and require flex conduit.
1/2” Threaded Connector: Screw a conduit fitting into the actuator’s metal
bushing. Jacket the actuator’s input wiring with suitable fl exible conduit.
Properly terminate the conduit in a suitable junction box.
3/8” Flex Connector (-FC models): Mount the flexible conduit into the
actuator’s metal bushing by means of the provided screw with a torque of 1.2
Nm. Jacket the actuator’s input wiring with suitable flexible conduit. Properly
terminate the conduit in a suitable junction box.
FSLF120 US
On/Off, Spring Return, 350°F [177°C] for a half hour, 15 Seconds Cycle Time
800-543-9038 USA
866-805-7089 CANADA
203-791-8396 LATIN AMERICA / CARIBBEAN
Date created, 03/08/2019 - Subject to change. © Belimo Air
controls (USA), Inc.
