Description
Delta AFB1224VHE-TC5F (also known as AFB1224VHETC5F) is a rugged, high-performance industrial DC brushless tubeaxial cooling fan measuring 120 x 120 x 38 mm (4.72 x 4.72 x 1.50 in). Engineered with dual precision ball bearings and an IP55-rated environmental seal, this unit delivers up to 148.36 CFM (252.1 m³/h) of airflow and 0.601 in H₂O (149.7 Pa) of static pressure at a nominal speed of 4,000 RPM. Constructed with flame-retardant UL 94V-0 PBT plastic frame and impeller assemblies, the fan features integrated locked rotor impedance protection, reverse polarity safeguards, and a frequency generator (tachometer) signal output. Electrical connection is routed through a 330 mm triple-lead harness using UL 1007 AWG #24 wiring for seamless deployment across harsh industrial enclosures.
Key Features
- High-Static Aerodynamics: Delivers 148.36 CFM airflow and 0.601 in H₂O static pressure for overcoming dense thermal resistance.
- IP55 Ingress Protection: Sealed mechanical assembly prevents dust contamination and protects motor windings against high-pressure water spray.
- Dual Ball Bearing System: Precision maintenance-free bearings ensure reliable continuous duty exceeding 70,000 operating hours at 40°C.
- Integrated Tachometer Monitoring: Three-wire interface provides open-collector frequency generator (FG) pulses for continuous rotational speed feedback.
- Comprehensive Electrical Safeguards: Incorporates automatic locked-rotor thermal cutoff and reverse polarity defense preventing electrical damage upon miswiring.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | AFB1224VHE-TC5F |
| Alternate Part Number | AFB1224VHETC5F |
| Product Series | AFB Series |
| Product Category | DC Axial Fans |
| Fan / Component Type | Brushless DC Tubeaxial Fan |
| Phase & Supply Type | Single-Phase DC |
| Rated Voltage | 24 VDC |
| Operating Voltage Range | 14.0 to 27.6 VDC |
| Rated Current | 0.36 A |
| Max. Current Draw | 0.57 A |
| Rated Input Power | 8.64 W |
| Max. Input Power | 13.68 W |
| Rotational Speed | 4000 RPM (±10%) |
| Airflow (Max.) | 148.356 CFM (252.1 m³/h / 4.201 m³/min) |
| Static Pressure (Max.) | 0.601 in H₂O (149.7 Pa / 15.296 mmH₂O) |
| Noise Level (Avg.) | 51.0 dB(A) |
| Impeller Size | Ø 112 mm (4.41 in) |
| 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 ± 0.012 in) |
| Mounting Hole Diameter | 8 × Ø 4.5 ± 0.5 mm (0.177 ± 0.020 in) |
| 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 lb) |
| Termination & Cable Specs | 3-Wire Leads, UL 1007 AWG #24, Length 330 ± 10 mm (12.99 ± 0.39 in), Strip 10.0 mm (0.394 in) |
| Wiring Pinout / Connection | Black: Negative (-), Red: Positive (+), Blue: Frequency Generator (FG Tach) |
| Control / Signal Features | Open-Collector Frequency Generator (FG) Tachometer (4 Pulses/Rev, Vce max 27.6V, Ic max 5mA) |
| Motor Protection | Locked Rotor Impedance Protection (96 Hours) & Reverse Polarity Protection |
| Insulation Class | UL Class A |
| Insulation Resistance | Min. 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) |
| Ingress Protection (IP) | IP55 |
| 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 | 5% to 90% RH (Non-Condensing) |
| Storage Humidity | 5% to 95% RH (Non-Condensing) |
| Service Life (L10) | 70,000 Hours at 40°C, 15% to 65% RH |
| Standards & Compliance | CE, CSA, UL, VDE, RoHS Compliant |
Applications
Delta AFB1224VHE-TC5F brushless axial fans are primarily integrated into harsh-environment industrial automation systems, variable frequency drive (VFD) enclosures, and solar inverter power banks requiring resilient ingress resistance. The unit serves as an essential forced-air component in outdoor telecom base stations, unmanaged PoE switch racks, and uninterruptible power supply (UPS) modules exposed to dust and humidity. Additionally, its robust static pressure capability makes it a prime MRO replacement choice for CNC machine tool control panels, robotic weld controllers, and commercial battery energy storage subsystems.
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