Description
The Belimo NFA Rotary Actuator is designed for fail-safe adjustment of dampers in technical building installations. This high-performance actuator is ideal for air dampers up to approximately 2 m². It operates with both AC and DC voltage and is renowned for its reliability and efficiency in various environmental conditions.
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Electrical Data
- Nominal Voltage: AC 24...240 V / DC 24...125 V
- Nominal Voltage Frequency: 50/60 Hz
- Nominal Voltage Range: AC 19.2...264 V / DC 21.6...137.5 V
- Power Consumption in Operation: 6 W
- Power Consumption in Rest Position: 2.5 W
- Power Consumption for Wire Sizing: 9.5 VA
- Connection Supply / Control: Cable 1 m, 2x 0.75 mm²
- Parallel Operation: Yes (note performance data)
Functional Data
- Torque Motor: 10 Nm
- Torque Fail-Safe: 10 Nm
- Direction of Motion Motor: Selectable by mounting L/R
- Direction of Motion Fail-Safe: Selectable by mounting L/R
- Manual Override: By means of hand crank and locking switch
- Angle of Rotation: Max. 95°, adjustable starting at 33% in 2.5% steps (with mechanical end stop)
- Running Time Motor: 75 s / 90°
- Running Time Fail-Safe: <20 s @ -20...50°C / <60 s @ -30°C
- Sound Power Level: 45 dB(A)
- Mechanical Interface: Universal shaft clamp 10...25.4 mm
- Position Indication: Mechanical
- Service Life: Min. 60,000 fail-safe positions
Safety Data
- Protection Class IEC/EN: II, reinforced insulation
- Protection Class UL: II, reinforced insulation
- Degree of Protection IEC/EN: IP54
- Degree of Protection NEMA/UL: NEMA 2
- Enclosure UL: Type 2
- EMC: CE according to 2014/30/EU
- Low Voltage Directive: CE according to 2014/35/EU
- Certification IEC/EN: IEC/EN 60730-1 and IEC/EN 60730-2-14
- UL Approval: cULus according to UL60730-1A, UL60730-2-14 and CAN/CSA E60730-1
- Hygiene Test: According to VDI 6022 Part 1 / SWKI VA 104-01, cleanable and disinfectable, low-emission
- Type of Action: Type 1.AA
- Rated Impulse Voltage Supply / Control: 4 kV
- Pollution Degree: 3
- Ambient Humidity Max.: 95% RH, non-condensing
- Ambient Temperature: -30...50°C [-22...122°F]
- Storage Temperature: -40...80°C [-40...176°F]
- Servicing: Maintenance-free
- Weight: 2.0 kg
Electrical Accessories:
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Auxiliary switch 2x SPDT (Type: S2A-F)
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Feedback potentiometer 1 kΩ (Type: P1000A-F)
Mechanical Accessories:
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Shaft extension 240 mm ø20 mm for damper shaft ø8...22.7 mm (Type: AV8-25)
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End stop indicator (Type: IND-AFB)
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Shaft clamp reversible, for central mounting, for damper shafts ø12.7 / 19.0 / 25.4 mm (Type: K7-2)
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Ball joint suitable for damper crank arm (Type: KH8 / KH10, KG10A, KG8)
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Damper crank arm, Slot width 8.2 mm, clamping range ø10...18 mm (Type: KH8)
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Actuator arm, for 3/4" shafts, clamping range ø10...22 mm, Slot width 8.2 mm (Type: KH-AFB)
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Form fit inserts (Types: ZF10-NSA-F, ZF12-NSA-F, ZF15-NSA-F, ZF16-NSA-F)
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Mounting kit for linkage operation for flat and side installation (Type: ZG-AFB)
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Baseplate extension (Type: Z-SF)
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Anti-rotation mechanism 230 mm, Multipack 20 pcs. (Type: Z-ARS230L)
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Hand crank 63 mm (Type: ZKN2-B)
For more information and to explore our range of Belimo products, visit our website at https://ecospares.co.uk/collections/belimo. If you need any assistance, please contact us.
