Technical Data307585Power Supply24 VAC, ±10%, , 24 VDCPower Consumption Running50/60 Hz, 15 VAPower Consumption Holding3.5 VA, End Stop 25 VA, 1 A slow blow fuse *Transformer Sizing24 VA (class 2 power source)Shaft Diameter3/8” to 1/2” round, centers on 1/2”Electrical Connection3ft [1m], 18 GA, 2 color coded leadsOverload Protectionelectronic throughout 0° to 95° rotationElectrical Protectionactuators are double insulatedAngle of Rotation95°Nominal torqueMin. 30 in-lbs [3.5 Nm] from 32°F to 350°F [0°C to 177°C]Direction of Rotation (Motor)reversible with CW/CCW mountingDirection of Rotation (Fail-Safe)reversible with CW/CCW mountingPosition Indicationvisual indicator, 0° to 95° (0° is full spring return position)Running Time (Motor)<15 sec at rated voltage and torque 32°F to 122°F [0°C to 50°C]Running Time (Fail-Safe)<15 secAmbient Humidity5 to 95% RH non-condensingAmbient Temperature Range32°F to 122°F [0°C to 50°C]Storage Temperature Range-40°F to 176°F [-40°C to 80°C]HousingNEMA 1, IP30Housing Materialzinc coated steelAgency Listings†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 Servicingmaintenance freeQuality StandardISO 9001Weight3.7 lb [1.7 kg]Degree of Protection IEC/ENIP30† UL File XAPX.E108966Fire & Smoke damper actuatorApplicationThe 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.OperationMounting 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.FSLF24-FC USOn/Off, Spring Return, Fail-Safe 24VAC/DC800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 02/05/2018 - Subject to change. © Belimo Aircontrols (USA), Inc.AccessoriesBAE165 US165° F electric thermal sensor, SPST, normally closed.S2A-F USAuxiliary switch, 2x SPDT, 3A (0.5A inductive) @250 VAC max.Typical SpecificationAll smoke and combination fire and smoke dampers shall be provided with Belimo FSTF, FSLF, FSNF, or FSAF actuators. All substitutions must be approved before submission of bid. Damper and actuator shall have UL 555S Listing for 250°F (350°F). Actuator shall have been tested to UL 2043 per requirements of IMC 602.2 and NEC 300.22 (c). Where position indication is required -S models with auxiliary switches or damper blade switches will be provided per code requirements.Wiring DiagramsAPPLICATION NOTESProvide overload protection and disconnect as required.45Actuators may be powered in parallel. Power consumption must be observed. 75Ground present on some models. 24 VAC Detector or relayF&S Damper21HOT165°FTo alarm systemManualresetActuatorN, L2, or COMTypical containment damper control wiring Detector or relayF&S Damper21HOTTo alarm systemActuatorN, L2, or COMFusible link F&S or smoke damperTypical smoke or fusible link damper wiring Parallel Actuator WiringFSLF24-FC USOn/Off, Spring Return, Fail-Safe 24VAC/DC800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 02/05/2018 - Subject to change. © Belimo Aircontrols (USA), Inc.Next >