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…1/2” round, centers on 1/2”
Electrical Connection
18 GA appliance cable, 3 ft [1 m], with 1/2” conduit connector
Overload Protection
electronic throughout 0…95° rotation
Electrical Protection
grounded enclosure, 120 V
Angle of rotation
95°
Direction of motion motor
selectable by ccw/cw mounting
Torque motor
30 in-lb [3.5 Nm] from 32…350°F [0…177°C]
Direction of motion fail-safe
reversible with cw/ccw mounting
Position indication
Mechanical
Running Time (Motor)
default <15 s, variable , at rated voltage and torque 32…122°F [0…50°C]
Running time fail-safe
<15 s
Ambient humidity
max. 95% r.H., non-condensing
Ambient temperature
32…122°F [0…50°C]
Storage temperature
-40…176°F [-40…80°C]
Degree of Protection
IP30, NEMA 1, UL Enclosure Type 1
Housing material
galvanized 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, motor
45 dB(A)
Noise level, fail-safe
62 dB(A)
Servicing
maintenance-free
Quality Standard
ISO 9001
Weight
4.1 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])
[5
7]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