Description
The Delta AFB1224VHE-R00 (also known as AFB1224VHER00) is an industrial-grade 24 VDC brushless axial cooling fan engineered in a standard 120 x 120 x 38.0 mm (4.72 x 4.72 x 1.496 in) tubeaxial housing. Driven by an efficient 2-phase, 4-pole motor, it delivers 129.96 CFM (220.8 m³/h) of airflow and 0.420 in H₂O (104.9 Pa) static pressure at a rated rotational speed of 3200 RPM while drawing 9.12 W. Built with high-durability dual ball bearings and fire-retardant UL 94V-0 plastic construction, the unit incorporates polarity protection, locked rotor auto-shutdown, and a factory-integrated open-collector rotation detect (RD) locked-rotor monitoring lead. Electrical connection is facilitated through 330 mm (12.99 in) 24 AWG lead wires, ensuring seamless deployment in high-reliability thermal management infrastructure.
Key Features
- Dual Ball Bearing Architecture: Delivers exceptional operational stability and a service life exceeding 70,000 hours at 40°C ambient.
- Active Rotation Detection (RD): Incorporates an open-collector third-wire alarm output that flags locked rotor or stoppage events immediately.
- High-Static Aerodynamic Design: Overcomes flow impedance up to 0.420 in H₂O (104.9 Pa) across densely packed equipment chassis.
- Robust Motor Safeguards: Equipped with automatic locked rotor current shutdown and comprehensive reverse polarity connection protection.
- Flame-Retardant UL 94V-0 Build: Built with premium reinforced thermoplastic housing and impeller for demanding industrial compliance.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | AFB1224VHE-R00 |
| Alternate Part Number | AFB1224VHER00 |
| Product Series | AFB Series |
| Product Category | DC Axial Fans |
| Fan / Component Type | Tubeaxial Fan |
| Phase & Supply Type | 2-Phase, 4-Pole DC Brushless |
| Rated Voltage | 24 VDC |
| Operating Voltage Range | 7.0 to 27.6 VDC |
| Rated Current | 0.38 A |
| Max. Current Draw | 0.57 A |
| Power Rating | 9.12 W |
| Max. Input Power | 13.68 W |
| Speed (RPM) | 3200 RPM |
| Airflow | 129.96 CFM (220.8 m³/h / 3.680 m³/min) |
| Min. Airflow | 119.72 CFM (203.4 m³/h / 3.390 m³/min) |
| Static Pressure | 0.420 in H₂O (104.9 Pa / 10.70 mmH₂O) |
| Min. Static Pressure | 0.357 in H₂O (88.8 Pa / 9.06 mmH₂O) |
| Noise Level | 48.0 dB(A) |
| Max. Acoustical Noise | 51.0 dB(A) |
| Airflow Direction | Intake over struts / exhaust over nameplate side |
| 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-Ø4.5 ± 0.3 mm (8-Ø0.177 ± 0.012 in) |
| Corner Flange Type | Ribbed / Open Flange |
| 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 | 0.256 kg (0.564 lbs / 256 g) |
| Termination & Cable Specs | 3 Wire Leads, UL 1007 AWG #24, Length: 330 ± 10 mm (12.99 ± 0.394 in) |
| Wiring Pinout / Connection | Black = Negative (-), Red = Positive (+), Blue = Rotation Detect Lock Signal (-R00) |
| Control / Signal Features | RD Rotation Detector / Locked Rotor Alarm (Open Collector Mode) |
| Rotation Detect Max. Collector Voltage (Vrd) | 45 V max. |
| Rotation Detect Saturation Voltage (Vce sat) | 0.5 V max. |
| Rotation Detect Max. Collector Current (Ic) | 5 mA max. |
| Motor Protection | Locked Rotor Protection (Impedance Protected & Auto Over-Current Shut Down), Reverse Polarity Protection |
| Locked Rotor Withstand Duration | Continuous fire-safe protection up to 96 hours at rated voltage |
| Insulation Class | UL Class A |
| Insulation Resistance | 10 MΩ min. at 500 VDC (between frame and positive terminal) |
| Dielectric Strength | 5 mA max. at 500 VAC, 60 Hz for 1 minute (between frame and positive terminal) |
| Operating Temperature | -10 to +60 °C (14 to 140 °F) |
| Storage Temperature | -40 to +75 °C (-40 to 167 °F) |
| Operating Humidity Range | 0 to 90% RH (non-condensing) |
| Storage Humidity Range | 5 to 95% RH (non-condensing) |
| Service Life (L10) | 70,000 Hours continuous operation at 40°C, 15 to 65% RH |
| Standards & Compliance | UL, CSA, VDE, CE, RoHS, RoHS3 Compliant |
Applications
The Delta AFB1224VHE-R00 axial cooling fan provides mission-critical forced-air convection across industrial automation cabinets, CNC machine tool servo drives, and modular variable frequency drive (VFD) enclosures. Its integrated locked-rotor detection circuit is ideal for continuous monitoring in telecom rectifiers, unmanaged network switches, and commercial UPS battery storage racks. Facilities maintenance engineers also utilize this unit for drop-in thermal replacement within welding power supplies, medical diagnostic systems, and solar inverter cooling banks.
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