Technical Data307633Power Supply120 VAC ± 10%, 50/60 HzPower Consumption Running50/60 Hz, 23 VA Power Consumption Holding9 VA, End stop 58 VA, 0.5 A slow blow fuse * Shaft Diameter1/2” to 1.05” round, centers on 1/2” and 3/4” with insert, 1.05” without insertElectrical Connection3ft [1m], 18 GA, 3 color coded leadsOverload Protectionelectronic throughout 0° to 95° rotationElectrical Protectiongrounded enclosure, 120VAngle of Rotation95°Torque70 in-lbs [8 Nm] minimum from 32°F to 350°F [0°C to 177°C]Direction of Rotation (Motor)can be selected by CCW/CW mountingDirection of Rotation (Fail-Safe)can be selected by CCW/CW 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 type 1 / IP40Housing Materialzinc coated steelGearssteel, permanently lubricatedAgency Listings†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 602 NYC Department of Buildings MEA 197-07-M.California State Fire Marshal Listing 3210-1593:101.Noise Level (Motor)45 dB (A) motor, 62 dB (A) spring, inaudible holding Servicingmaintenance freeQuality StandardISO 9001Weight7.3 lb [3.3 kg]Auxiliary Switch2 x SPDT, 7A resistive, 2.5A inductive at 120V or 250V, double insulated, one switch at 10°, one at 85°† UL File XAPX.E108966Fire & Smoke damper actuatorApplicationThe 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 at 350°F. Square footage of damper operated will depend on make and model and the temperature required. IMPORTANT 24VDC NOTE: The FSNF24 & -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 (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.Dimensions (Inches[mm])Standard: 1/2" to 1.05" Optional* 3/8" to 3/4"*with K4 US clamp1.97"3.15" [80]3.86" [98]2.24" [57][5][50]1.93"[49]2.89"[73.5]2.64"[67]0.26" [6.5]5.85" [148.5]10.20" [259]0.35" [9]0.39" [10]0.65" [16.5]0.19" [5][ø41.2]ø1.62"[191.6]7.54"0.19" 3.25" [82.7]Safety Notes* 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 amp slow blow should be used for 24VAC. A 0.5 amp slow blow should be used for 120 VAC. A 0.25 amp slow blow should be used for 230V and a 0.3 amp slow blow for 208 VAC. Transformers: Note that while a 24V 100VA transformer would handle 2 actuators, a 4 A breaker or plug fuse is insufficient. A 5 amp 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.FSNF120-S-FC USOn/Off, Spring Return, 350°F [177°C] for half hour, 120VAC, 15 Seconds Cycle Time800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 04/17/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.AccessoriesAF-PAnti-rotation bracket AF/NF.IND-AF2Classic AF/NF position indicator.K4-1 USClassic AF/NF jackshaft clamp (up to 1.05”).KH-AFClassic AF/NF crankarm for Shafts to 3/4”.KH-AF-1 USClassic AF/NF crankarm for Jackshaft to 1.05”.SH8Push rod for KG6 & KG8 ball joints (36” L, 5/16” diameter).ZDB-AF2 USAngle of rotation limiter for Classic AF/NF.ZG-100Univ. right angle bracket (17” H x 11-1/8” W x 6” base).ZG-101Univ. right angle bracket (13” H x 11” W x 7-7/16” base).ZG-AF USClassic AF/NF crankarm adaptor kit.ZG-AF108Classic AF/NF crankarm adaptor kit with ZG-108.ZG-DC1Damper clip for damper blade, 3.5” width.ZG-DC2Damper clip for damper blade, 6” width.ZS-100Weather shield - galvaneal (13” L x 8” W x 6” D).ZS-150Weather shield - PC w/ foam seal (16” L x 8-3/8” W x 4” D).ZS-260Explosion proof housing.ZS-300NEMA 4X, 304 stainless steel enclosure.BAE165 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 DiagramsINSTALLATION NOTESProvide overload protection and disconnect as required.45Actuators may be powered in parallel. Power consumption must be observed. 72S4 makes to S6 when actuator is powered open.73Auxiliary switches are for end position indication or interlock control.74Double insulated.75Ground present on some models. 452 Hot1 Neutral3 Ground1N (White)L1 (Black)120 VAC Detector or relayF&S Damper21HOT165°FTo alarm systemManualresetActuatorN, L2, or COMTypical containment damper control wiring Parallel Actuator Wiring S1S2S4S6NCNOS3S5NCNO10°85°747372Auxiliary SwitchFSNF120-S-FC USOn/Off, Spring Return, 350°F [177°C] for half hour, 120VAC, 15 Seconds Cycle Time800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEANDate created, 04/17/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.Next >