Description
Delta AFB0912H is an industrial-grade 92 x 92 x 25.4 mm (3.62 x 3.62 x 1.00 in) brushless DC tubeaxial cooling fan designed for demanding thermal dissipation requirements. Driven by a 2-phase, 4-pole motor operating on 12 VDC across a 7.0 to 13.8 VDC range, the unit delivers 51.21 CFM (87.0 m³/h) of airflow and 0.177 in H₂O (44.1 Pa) static pressure at a nominal speed of 2850 RPM while maintaining a low 34.0 dB(A) acoustic profile. The mechanical assembly integrates a high-precision dual ball bearing system with flame-retardant UL 94V-0 rated plastic housing and impeller, ensuring an L10 service life of 70,000 hours at 40 °C. Standard factory features include locked-rotor impedance protection and reverse polarity protection, pre-terminated with 305 mm UL 1007 AWG 24 lead wires for straightforward OEM integration.
Key Features
- Dual Ball Bearing Architecture: Provides maintenance-free reliability and extended continuous operation up to 70,000 hours at 40 °C.
- Optimized Aerodynamic Output: Delivers 51.21 CFM volumetric airflow and 0.177 in H₂O static pressure for dense thermal enclosures.
- Flame-Retardant Thermoplastic: Built with UL 94V-0 certified frame and impeller materials to satisfy industrial safety regulations.
- Comprehensive Electrical Safeguards: Features locked-rotor impedance protection up to 96 hours alongside integrated reverse polarity connection resilience.
- Quiet Acoustic Profile: Generates an average 34.0 dB(A) sound level ideal for noise-sensitive control and communication cabinets.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | AFB0912H |
| Product Series | AFB |
| Product Category | DC Axial Fans |
| Fan / Component Type | Tubeaxial Cooling Fan |
| Motor Design | Brushless DC Motor, 2-Phase, 4-Pole |
| Rated Voltage | 12 VDC |
| Operating Voltage Range | 7.0 to 13.8 VDC |
| Min. Starting Voltage | 4.0 VDC (at 25 °C) |
| Rated Current | 0.16 A |
| Max. Current Draw | 0.30 A |
| Rated Input Power | 1.92 W |
| Max. Input Power | 3.80 W |
| Speed (RPM) | 2850 RPM |
| Airflow | 51.21 CFM (87.0 m³/h / 1.450 m³/min) |
| Min. Airflow | 45.91 CFM (78.0 m³/h / 1.300 m³/min) |
| Static Pressure | 0.177 in H₂O (44.1 Pa / 4.50 mmH₂O) |
| Min. Static Pressure | 0.150 in H₂O (37.5 Pa / 3.82 mmH₂O) |
| Noise Level | 34.0 dB(A) |
| Max. Noise Level | 37.5 dB(A) |
| Airflow Direction | Intake over Struts / Exhaust over Nameplate |
| Direction of Rotation | Clockwise (viewed from nameplate side) |
| Bearing Type | Two Ball Bearings |
| Frame Dimensions (L × H) | 92.0 × 92.0 mm (3.622 × 3.622 in) |
| Frame Thickness / Depth | 25.4 mm (1.000 in) |
| Mounting Hole Pitch | 82.5 × 82.5 mm (3.248 × 3.248 in) |
| Mounting Hole Diameter | 8-Ø 4.5 ± 0.3 mm (8-Ø 0.177 ± 0.012 in) |
| Housing Material | Plastic (UL 94V-0) |
| Impeller Material | Plastic (UL 94V-0) |
| External Cover | Open Type |
| Termination & Cable Specs | 2 Wire Leads, UL 1007 AWG #24, Length 305 ± 10 mm (12.01 ± 0.39 in) |
| Wiring Pinout | Black Wire: Negative (-), Red Wire: Positive (+) |
| Motor Protection | Locked Rotor Protection (Impedance Protected up to 96h), Reverse Polarity Protection |
| Over Current Shut Down | Current Shut Down upon Rotor Lock |
| Insulation Class | UL 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) |
| Weight | 99 g (0.219 lbs) |
| Standards & Compliance | CE, CSA, UL, VDE, RoHS3 Compliant |
Applications
Delta AFB0912H axial fans are widely deployed for forced-air cooling in variable frequency drives, telecommunications rectifiers, uninterruptible power supplies, and programmable logic controller automation racks. Their compact footprint makes them suitable for embedded industrial PCs, medical laboratory diagnostic instruments, and broadcast transmission chassis facing space constraints. They also serve as standard drop-in replacement units for industrial automation equipment and test-and-measurement benches requiring dependable continuous thermal ventilation.
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