Description
Delta BFB1212EH-A (also known as BFB1212EHA) is a high-performance brushless DC centrifugal scroll blower engineered for targeted forced-air cooling in high-impedance thermal architectures. Measuring 120.0 × 120.0 × 32.0 mm (4.72 × 4.72 × 1.26 in), this compact unit features an aerodynamic scroll housing and centrifugal impeller molded from flame-retardant UL 94V-0 thermoplastic. Powered by a precision 12 VDC motor operating at 4000 RPM, the blower generates an impressive 54.85 CFM (93.18 m³/h) of airflow against up to 3.485 in H₂O (868.1 Pa) of static pressure. Engineered for industrial durability, it incorporates a dual ball bearing assembly, electronic locked-rotor shutdown, reverse polarity protection, and UL 1430 AWG #22 lead-wire termination.
Key Features
- Extreme Static Pressure: Generates up to 3.485 in H₂O (868.1 Pa) to force airflow through dense thermal ductwork.
- Long-Life Bearing System: Precision dual ball bearings ensure 50,000 hours of continuous, maintenance-free operation at 40°C.
- Comprehensive Circuit Safety: Features automatic locked-rotor current shutdown and full polarity protection against reverse wiring.
- Flame-Retardant Thermoplastic: Housing and impeller molded from rugged UL 94V-0 plastic to meet strict industrial flammability standards.
- High-Velocity Discharge: Delivers 54.85 CFM (93.18 m³/h) directed airflow through a compact 60.0×32.0mm exhaust port.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | BFB1212EH-A |
| Alternate Part Number | BFB1212EHA |
| Product Series | BFB Series |
| Product Category | DC Blower Fans |
| Fan / Component Type | Brushless DC Centrifugal Scroll Blower |
| Phase & Supply Type | DC |
| Rated Voltage | 12 VDC |
| Operating Voltage Range | 6.0 to 13.8 VDC |
| Rated Current | 2.37 A |
| Max. Current Draw | 2.85 A |
| Power Rating | 28.44 W |
| Max. Input Power | 34.20 W |
| Speed (RPM) | 4000 RPM (Reference) |
| Airflow | 54.85 CFM (93.18 m³/h, 1.553 m³/min) |
| Min. Airflow | 49.36 CFM (83.88 m³/h, 1.398 m³/min) |
| Static Pressure | 3.485 in H₂O (868.1 Pa, 88.51 mmH₂O) |
| Min. Static Pressure | 2.823 in H₂O (703.1 Pa, 71.69 mmH₂O) |
| Noise Level | 62.0 dB(A) |
| Max. Acoustical Noise | 66.0 dB(A) |
| Airflow Direction | Radial / Side Discharge |
| Dimensions (L × H × D) | 120.0 × 120.0 × 32.0 mm (4.72 × 4.72 × 1.26 in) |
| Air Intake Diameter | Ø 76.0 mm (2.99 in) |
| Discharge Outlet Dimensions | 60.0 × 32.0 mm (2.36 × 1.26 in) |
| Mounting Hole Diameter | 3 × Ø 4.3 mm (0.17 in) |
| Mounting Hole Pitch | 105.0 mm × 88.0 mm / 90.0 mm |
| Housing Material | Plastic (UL 94V-0) |
| Impeller Material | Plastic (UL 94V-0) |
| External Cover | Open Type |
| Bearing Type | Two Ball Bearings |
| Direction of Rotation | Clockwise (viewed from nameplate side) |
| Weight | 0.295 kg ± 0.010 kg (0.650 lbs ± 0.022 lbs) |
| Termination & Cable Specs | 2 Wire Leads, UL 1430 -F- AWG #22 |
| Wiring Pinout / Connection | Red Wire: Positive (+), Black Wire: Negative (-) |
| Motor Protection | Impedance Protected (96 Hours at Rated Voltage), Reverse Polarity Protection |
| Over Current Protection | Automatic Current Shutdown at Locked Rotor |
| 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 50/60 Hz for 1 minute (between frame and positive terminal) |
| Operating Temperature | -10°C to +60°C (14°F to 140°F) |
| Storage Temperature | -40°C to +75°C (-40°F to 167°F) |
| Operating Humidity | 5% to 90% RH |
| Storage Humidity | 5% to 95% RH |
| Service Life (L10) | 50,000 Hours continuous operation at 40°C (15% to 65% RH) |
| Standards & Compliance | CE, CSA, UL, VDE, RoHS3 Compliant, Ozone Depleting Substances Free |
Applications
Delta BFB1212EH-A is purpose-built for high-restriction localized thermal management in ducted air handling systems, industrial 3D printing chambers, and laser engraving exhaust scrubbers. It serves as an essential active cooling and ventilation component within automated soldering reflow stations, commercial food processing warming cabinets, and laboratory fume extractors. System designers and MRO engineers frequently specify this centrifugal blower for telecommunications power rectifiers, medical diagnostic incubators, and high-density industrial control enclosures requiring concentrated spot-cooling.
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