Description
ebm-papst D2E133-DM47-A3 (also known as D2E133DM47A3) is an industrial dual-inlet forward-curved centrifugal blower integrated into a galvanized sheet-steel scroll housing powered by an internal M2E068-DF external-rotor motor. Engineered for demanding thermal management and ducted air movement, it delivers up to 495 CFM (840 m³/h) of high-pressure airflow across 230 VAC 50/60 Hz utility power grids. The robust assembly incorporates precision maintenance-free ball bearings, an internally wired thermal overload protector (TOP), and an axial PVC 4-conductor flying lead cable for seamless electrical integration.
Key Features
- Dual-Inlet Galvanized Scroll: Heavy-duty galvanized sheet steel housing and forward-curved impeller provide exceptional corrosion resistance and balanced aerodynamics.
- External Rotor Motor: Integrated M2E068-DF motor features single-sided bracket suspension and continuous S1 duty operation in any mounting orientation.
- Internal Thermal Protection: Factory-integrated thermal overload protector (TOP) safeguards motor windings against phase anomalies, locked rotors, and thermal runaway.
- Dual-Frequency Operation: Operates efficiently across 50 Hz and 60 Hz electrical systems utilizing an external 3 µF 450 VDB run capacitor.
- Integrated Protective Grille: Features a robust RAL 9006 plastic-coated steel guard grille over the intake side for enhanced foreign-object debris safety.
Technical Specifications
| Manufacturer | ebm-papst |
|---|---|
| Manufacturer Part Number (MPN) | D2E133-DM47-A3 |
| Alternate Part Number | D2E133DM47A3 |
| ebm-papst Item Number | 12740-5-9980 |
| Integrated Motor Model | M2E068-DF |
| Product Series | D2E133 |
| Product Category | AC Blower Fans |
| Fan / Component Type | Centrifugal Blower Fan (Forward-Curved, Dual-Inlet with Housing, Flangeless) |
| Phase & Supply Type | 1~ Single-Phase AC |
| Rated Voltage | 230 VAC |
| Frequency | 50 / 60 Hz |
| Speed (RPM) | 1150 RPM (50 Hz) / 1550 RPM (60 Hz) |
| Power Consumption | 190 W (50 Hz) / 195 W (60 Hz) |
| Current Draw | 0.84 A (50 Hz) / 0.85 A (60 Hz) |
| Run Capacitor Requirement | 3.0 µF / 450 VDB (Standard S0 CE) |
| Max Airflow | 495 CFM (840 m³/h at 50 Hz) / 390 CFM (665 m³/h at 60 Hz) |
| Min. Back Pressure | 0 Pa (0.00 in H₂O at 50 Hz) / 100 Pa (0.401 in H₂O at 60 Hz) |
| Fan Size | 133 mm (5.24 in) |
| Overall Dimensions (L × H × D) | 203 × 213 × 232 mm (7.99 × 8.39 × 9.13 in) |
| Impeller Material | Sheet steel, galvanized |
| Housing Material | Sheet steel, galvanized |
| Guard Grille Material | Steel, coated with gray plastic (RAL 9006) |
| Rotor Surface | Unpainted |
| Motor Bearing Type | Precision Ball Bearings |
| Motor Suspension | Motor mounted with brackets on one side |
| Direction of Rotation | Clockwise, viewed toward rotor |
| Installation Position | Any (360° universal mounting) |
| Condensation Drainage Holes | None |
| Operating Mode / Duty Cycle | S1 (Continuous Duty) |
| Weight | 4.0 kg (8.82 lbs) |
| Termination & Cable Specs | Axial PVC Cable 4G 0.5 mm², 4x crimped splices |
| Wiring Pinout / Connection | U1 = Blue, Z = Brown, U2 = Black, PE = Green/Yellow |
| Motor Protection | Thermal Overload Protector (TOP) internally connected |
| Touch Current (IEC 60990) | < 0.75 mA (TN system, Fig. 4 measuring circuit) |
| Electrical Protection Class | Class I (with protective earth connection) |
| Insulation Class | Class B |
| Ingress Protection (IP) | IP44 (installation- and position-dependent) |
| Moisture / Environmental Class | H0 – dry environment |
| Operating Temperature Range | -25 °C to +30 °C (-13 °F to +86 °F) |
| Permissible Storage/Transport Temperature | -40 °C to +80 °C (-40 °F to +176 °F) |
| Conformity & Standards | EN 60335-1, CE, RoHS3 |
Applications
ebm-papst D2E133-DM47-A3 dual-inlet forward-curved blowers provide targeted convective cooling and pressurized ducted ventilation across commercial HVAC air handling units, VAV terminal reheaters, and doorway air curtain curtains. They are widely specified in forced-convection industrial curing ovens, packaging equipment shrink tunnels, and reflow soldering machinery requiring reliable static pressure generation. Additionally, plant maintenance teams deploy this blower assembly for thermal exhaustion within industrial battery backup rooms, large electrical drive panels, and laboratory fume extractor systems.
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