Description
The Delta AFB0924SH-A (also known as AFB0924SHA) is a high-velocity 24 VDC brushless tubeaxial cooling fan engineered in a standard 92 × 92 × 25.4 mm (3.62 × 3.62 × 1.00 in) form factor. Driven by an efficient brushless DC motor, the unit operates at 4800 RPM to deliver an exceptional maximum airflow of 102.59 CFM (174.3 m³/h) against high static back pressures up to 0.526 in H₂O (130.9 Pa). Constructed with reinforced UL 94V-0 flame-retardant thermoplastic housing and impeller, the assembly utilizes a precision dual ball bearing system rated for 70,000 hours of continuous service at 40 °C. Standard electrical integration features 310 mm 24 AWG lead wires, comprehensive locked-rotor impedance protection, and reverse polarity defense.
Key Features
- High-Static Aerodynamics: Delivers 102.59 CFM and 0.526 in H₂O back pressure for dense thermal enclosures.
- Dual Ball Bearings: Heavy-duty dual ball bearing system delivers 70,000 hours continuous service life at 40 °C.
- Flame-Retardant Construction: Precision-molded UL 94V-0 rated plastic housing and impeller provide high structural rigidity.
- Integrated Motor Safeguards: Features locked-rotor current shutdown, 96-hour burn-out impedance protection, and polarity defense.
- Industrial Lead Termination: Equipped with 310 mm UL 1007 AWG #24 insulated lead wires for streamlined installation.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | AFB0924SH-A |
| Alternate Part Number | AFB0924SHA |
| Product Series | AFB |
| Product Category | DC Axial Fans |
| Fan / Component Type | DC Brushless Tubeaxial Fan |
| Supply Type | Direct Current (DC) |
| Rated Voltage | 24 VDC |
| Operating Voltage Range | 14.0 to 26.4 VDC |
| Min. Starting Voltage | ≤ 14.0 VDC (at 25 °C) |
| Speed (RPM) | 4800 RPM |
| Rated Power Consumption | 9.60 W |
| Max. Power Input | 12.00 W |
| Rated Current | 0.40 A |
| Max. Current Draw | 0.50 A |
| Airflow | 102.59 CFM (174.3 m³/h / 2.905 m³/min) |
| Min. Airflow | 92.33 CFM (156.9 m³/h / 2.614 m³/min) |
| Static Pressure | 0.526 in H₂O (130.9 Pa / 13.35 mmH₂O) |
| Min. Static Pressure | 0.426 in H₂O (106.0 Pa / 10.81 mmH₂O) |
| Noise Level | 53.0 dB(A) |
| Max. Noise Level | 57.0 dB(A) |
| Airflow Direction | Exhaust over struts |
| Direction of Rotation | Clockwise (viewed from nameplate side) |
| Dimensions (L × H × D) | 92.0 × 92.0 × 25.4 mm (3.622 × 3.622 × 1.000 in) |
| Mounting Hole Pitch | 82.5 ± 0.3 mm (3.248 ± 0.012 in) |
| Mounting Hole Diameter | 8 × Ø4.5 ± 0.3 mm (Ø0.177 ± 0.012 in) |
| Housing Material | Plastic (UL 94V-0) |
| Impeller Material | Plastic (UL 94V-0) |
| Bearing Type | Two Ball Bearings |
| Weight | 120 g (0.265 lbs / 4.23 oz) |
| Termination & Cable Specs | 2 Lead Wires, UL 1007 AWG #24, Length 310.0 ± 10.0 mm (12.205 ± 0.394 in), 10.0 mm Stripped |
| Wiring Pinout / Connection | Black Wire: Negative (-), Red Wire: Positive (+) |
| Motor Protection | Locked Rotor Impedance Protection (96 Hours Fire-Safe), Over-Current Shutdown, Reverse Polarity Protection |
| Insulation Class | UL Class A |
| Insulation Resistance | ≥ 10 MΩ at 500 VDC (Between Frame and (+) Terminal) |
| Dielectric Strength | 5 mA Max. at 500 VAC, 60 Hz for 1 Minute (Between Frame and (+) Terminal) |
| Operating Temperature | -10 to +70 °C (14 to 158 °F) |
| Storage Temperature | -40 to +75 °C (-40 to 167 °F) |
| Operating Humidity | 5 to 90% RH |
| Storage Humidity | 5 to 95% RH |
| Service Life (L10) | 70,000 Hours continuous operation at 40 °C (15 to 65% RH) |
| Standards & Compliance | CE, CSA, UL, VDE, RoHS Compliant |
Applications
The Delta AFB0924SH-A DC axial cooling fan is engineered for intensive forced-air convection in high-density industrial control cabinets, variable frequency drives, and servo amplifier chassis. It serves as an essential thermal component in telecom power rectifiers, uninterruptible power supplies, and industrial automation machinery where high static back pressure must be overcome. Additionally, it provides reliable heat dissipation within medical diagnostic instruments, solar inverters, and commercial communications infrastructure.
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