Description
Delta AFB1224GHE-C (also known as AFB1224GHEC) is a high-performance 24VDC brushless tubeaxial cooling fan engineered in a standard 120 × 120 × 38 mm (4.72 × 4.72 × 1.50 in) square form factor. Operating across a wide 14.0 to 28.0 VDC input range, this unit delivers an impressive airflow rate of 240.96 CFM (409.4 m³/h) and static pressure of 1.082 in H₂O (269.5 Pa) at 5200 RPM while consuming 27.60 W nominal power. Constructed with UL 94V-0 flame-retardant plastic housing and impeller assemblies, the fan incorporates dual precision ball bearings rated for 70,000 hours of continuous service at 40 °C. Standard electrical integration is provided via 330 mm 24 AWG lead wires, complemented by internal polarity protection and automatic locked-rotor shutdown circuitry.
Key Features
- High-Pressure Aerodynamics: Delivers 240.96 CFM airflow and 1.082 in H₂O static head for dense thermal enclosures.
- Dual Ball Bearings: Heavy-duty dual ball bearing system delivers 70,000 hours continuous service life at 40 °C.
- Comprehensive Motor Protection: Built-in polarity reverse prevention and locked-rotor shutdown prevent motor burnout during abnormal stall conditions.
- Industrial Flammability Rating: Rugged black plastic frame and impeller molding certified to UL 94V-0 fire resistance standards.
- Wide Voltage Operation: Accepts operating inputs between 14.0 and 28.0 VDC for resilient DC bus line compatibility.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | AFB1224GHE-C |
| Alternate Part Number | AFB1224GHEC |
| Product Series | AFB Series |
| 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 28.0 VDC |
| Speed (RPM) | 5200 RPM (Reference) |
| Power Rating (Nominal) | 27.60 W |
| Max. Input Power | 38.40 W |
| Rated Current | 1.15 A |
| Max. Current Draw | 1.60 A |
| Airflow | 240.96 CFM (409.4 m³/h / 6.823 m³/min) |
| Min. Airflow (Limited Spec) | 212.115 CFM (360.4 m³/h / 6.006 m³/min) |
| Static Pressure | 1.082 in H₂O (269.5 Pa / 27.483 mmH₂O) |
| Min. Static Pressure (Limited Spec) | 0.869 in H₂O (216.5 Pa / 22.075 mmH₂O) |
| Acoustical Noise Level | 62.0 dB(A) |
| Max. Noise Level | 66.0 dB(A) |
| Dimensions (L × H × D) | 120.0 × 120.0 × 38.0 mm (4.724 × 4.724 × 1.496 in) |
| Mounting Hole Pitch | 105.0 ± 0.3 mm (4.134 in) |
| Mounting Hole Diameter | 8 × Ø4.5 ± 0.3 mm (8 × Ø0.177 in) |
| Corner Rib / Flange Type | Flanged / Open Type |
| Housing Material | Plastic (UL 94V-0) |
| Impeller Material | Plastic (UL 94V-0) |
| Bearing Type | Two Ball Bearings |
| Direction of Rotation | Clockwise (viewed from nameplate side) |
| Weight | 330 g (0.728 lbs) |
| Termination & Cable Specs | 2 Wire Leads, UL 1007 AWG #24, Length 330.0 ± 10.0 mm (12.99 in), Stripped 10.0 mm |
| Wiring Pinout / Connection | Red Wire: Positive (+), Black Wire: Negative (-) |
| Motor Protection | Locked Rotor Protection (current shutdown) & Reverse Polarity Protection |
| Insulation Class | Class A |
| Insulation Resistance | 10 MΩ min. 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 °C to +70 °C (14 °F to 158 °F) |
| Storage Temperature | -40 °C to +75 °C (-40 °F to 167 °F) |
| Operating Humidity Range | 5 to 90% RH |
| Storage Humidity Range | 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, RoHS3 Compliant |
Applications
Delta AFB1224GHE-C axial fans are deployed in demanding industrial electronic systems requiring high-pressure forced-air convection across tightly packed components. Common installations include high-power variable frequency drives, telecommunications rectifiers, uninterruptible power supply cabinets, and industrial automated server enclosures. Maintenance engineers and machine builders also rely on this unit for heat exchanger circulation in solar inverters, welding equipment, and laser power supplies.
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