Description
Delta AFL2524HW-00 (also known as AFL2524HW00) is a high-efficiency round frame brushless DC tubeaxial cooling fan measuring Ø250 mm × 85.7 mm (Ø9.84 in × 3.37 in) with an integrated 200 mm impeller. Operating from a nominal 24 VDC supply, it delivers a rated volumetric airflow of 437.0 CFM (742.5 m³/h) and static pressure of 0.46 in H₂O (114.6 Pa) at a rated speed of 2200 RPM while consuming just 24.0 W (1.00 A). Built with a flame-retardant UL 94V-0 plastic housing, dual precision ball bearings, and an IP56 environmental rating, this compact Energy Saving Technology (EST) fan features locked-rotor protection, overcurrent protection, and a versatile 4-wire lead harness with PWM speed regulation and tachometer frequency generation.
Key Features
- High-Efficiency EST Motor: Brushless DC motor achieves 437 CFM airflow at 2200 RPM while drawing only 24 W power.
- IP56 Environmental Sealing: IEC 60529 certified ingress barrier protects internal stator windings against high-pressure water jets and harsh dust.
- Intelligent Dynamic Control: Integrated 4-wire harness provides variable PWM speed command inputs alongside a dedicated tachometer frequency generator signal.
- Rugged Dual Ball Bearings: Heavy-duty mechanical dual-bearing system ensures sustained 24/7 continuous operation across a wide -40°C to +60°C range.
- Comprehensive Electrical Safeguards: Integrated locked-rotor auto-restart and overcurrent cutoff protect electronics from stall transients and catastrophic burnout.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | AFL2524HW-00 |
| Alternate Part Number | AFL2524HW00 |
| Product Series | AFL Series (Energy Saving Technology Fan) |
| Product Category | DC Axial Fans |
| Fan / Component Type | Tubeaxial Cooling Fan |
| Supply Type | DC (Direct Current) |
| Rated Voltage | 24 VDC |
| Rated Speed | 2200 RPM |
| Rated Power Consumption | 24.0 W (Nominal Average at Free Air) |
| Max. Input Power | 30.0 W |
| Rated Current | 1.00 A (Average) |
| Max. Current Draw | 1.25 A |
| Airflow | 437.0 CFM (742.5 m³/h / 12.4 m³/min) |
| Static Pressure | 0.46 in H₂O (114.6 Pa / 11.7 mmH₂O) |
| Acoustical Noise Level | 57.0 dB(A) at 1 m (Intake Side) |
| Airflow Direction | Axial (Intake Over Impeller, Exhaust Over Struts) |
| Impeller Diameter | Ø 200 mm (7.87 in) |
| Frame Dimensions | Ø 250 mm × 85.7 mm (Ø 9.84 in × 3.37 in) |
| Housing Material | Thermoplastic (UL 94V-0) |
| Impeller Material | Thermoplastic (UL 94HB or UL 94V-0) |
| Bearing Type | Dual Ball Bearings (2 Ball Bearing) |
| Direction of Rotation | Clockwise (Viewed from Nameplate Side) |
| Weight | 0.80 kg (1.76 lbs) |
| Termination & Cable Specs | 4 Lead Wires (UL 2464, 24 AWG) |
| Wiring Pinout | Pin 1: Red (+), Pin 2: Black (-), Pin 3: Yellow (PWM & VSP), Pin 4: Blue (FG / Tachometer) |
| Speed Control Function | Pulse Width Modulation (PWM) & Voltage Speed Control (VSP) |
| Monitoring Output | Frequency Generator (FG) Speed Sensor Tachometer |
| Motor Protection | Locked Rotor Protection, Over Current Protection |
| Insulation Class | UL Class B |
| Insulation Resistance | 10 MΩ Min. at 500 VDC (Between Frame and (+) Terminal) |
| Dielectric Strength | 5 mA Max. at 500 VAC, 50/60 Hz for 1 Minute |
| Ingress Protection Rating | IP56 (IEC 60529 Dust Protected, High-Pressure Water Jet Resistant) |
| Operating Temperature | -40 °C to +60 °C (-40 °F to +140 °F) |
| Storage Temperature | -40 °C to +85 °C (-40 °F to +185 °F) |
| Operating Humidity Range | 5% to 90% RH (Non-Condensing) |
| Storage Humidity Range | 0% to 95% RH |
| Standards & Compliance | cURus, TUV, CE, RoHS Compliant (Free of PBBs, PBBOs, CFCs, PBBEs, PBDPEs, HCFCs) |
Applications
Delta AFL2524HW-00 is deployed as an environmental thermal exhaust and forced-air cooling unit across sealed outdoor industrial electrical cabinets, renewable solar PV inverters, and high-capacity battery energy storage system (BESS) racks. Its robust IP56 water and dust protection makes it ideal for harsh-duty telecommunications base stations, transit trackside signaling enclosures, and variable frequency drive (VFD) power conversion bays. OEM system builders and industrial MRO teams regularly integrate this slim round axial fan into commercial refrigeration condensing packs, automation PLC control consoles, and heavy equipment heat dissipation cowlings.
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