Description
The ebm-papst D2E146-HT75-45 (also known as D2E146HT7545) is an industrial dual-inlet forward-curved AC centrifugal blower engineered with an integrated M2E068-EC external rotor motor inside a flanged polypropylene scroll housing measuring 220 × 216 × 199 mm (8.66 × 8.50 × 7.83 in). Operating on 115 VAC at 60 Hz, this four-speed blower delivers an airflow of up to 515 CFM (875 m³/h) against a minimum back pressure of 200 Pa (0.80 in H₂O) with a rated input power of 380 W and nominal speed of 2150 RPM. The rugged assembly features galvanized sheet steel forward-curved blades, bilateral anti-vibration motor mounts, maintenance-free dual ball bearings, and an integrated 25 µF run capacitor. Electrical connection is facilitated via an integrated terminal box fitted with a 6-pole TE Connectivity plug interface alongside internal thermal overload protection (TOP).
Key Features
- Dual-Inlet Scroll Housing: Aerodynamic polypropylene scroll housing with mounting flange ensures high volume delivery against elevated duct resistance.
- Integrated 4-Speed Motor: Premium M2E068-EC external rotor motor supports four factory-tapped discrete operating speeds for demand-based airflow tuning.
- Vibration-Isolated Suspension: Dual-sided vibration-damped motor mounting isolates mechanical resonance and operational acoustic transmission across continuous S1 duties.
- Integrated Run Capacitor: Factory-installed 25 µF 220 VDB motor run capacitor simplifies field replacement inside the sealed junction box.
- Coded TE Plug Interface: Standardized 6-pin TE Connectivity connector system ensures secure, error-free wiring for speed taps, neutral, and earth ground.
Technical Specifications
| Manufacturer | ebm-papst |
|---|---|
| Manufacturer Part Number (MPN) | D2E146-HT75-45 |
| Alternate Part Number | D2E146HT7545 |
| Integrated Motor Model | M2E068-EC |
| Product Series | D2E146 |
| Product Category | AC Blower Fans |
| Fan / Component Type | Dual-Inlet Centrifugal Blower with Flanged Housing |
| Phase & Supply Type | 1~ Single-Phase AC |
| Rated Voltage | 115 VAC |
| Frequency | 60 Hz |
| Speed (RPM) | 2150 RPM (Stage 4 Max Load) / up to 3015 RPM (Stage 4 Free-Air) |
| Power Rating | 380 W |
| Rated Current | 3.30 A |
| Starting Current | 3.70 A |
| Run Capacitor | 25 µF / 220 VDB (Safety Class S2, EN 60252-1) |
| Airflow | 515 CFM (875 m³/h) |
| Min. Back Pressure | 0.80 in H₂O (200 Pa) |
| Max. Static Pressure | 2.21 in H₂O (550 Pa) |
| Airflow Direction | Dual radial intake, tangential discharge |
| Impeller Size | Ø 146 mm (5.75 in) |
| Impeller Design | Forward-curved, multi-blade |
| Dimensions (L × H × D) | 220 × 216 × 199 mm (8.66 × 8.50 × 7.83 in) |
| Discharge Outlet Dimensions | 155 × 113 mm (6.10 × 4.45 in) |
| Mounting Provision | 4x sheet metal nuts for thread EN ISO 1478-ST 4.8 (min. 14.5 mm screw engagement) |
| Housing Material | PP Plastic (Polypropylene) |
| Impeller Material | Sheet steel, galvanized |
| Terminal Box Material | PP Plastic (Polypropylene) |
| Rotor Surface | Unpainted |
| Bearing Type | Dual Precision Ball Bearings |
| Motor Suspension | Vibration-damped on both sides |
| Direction of Rotation | Counterclockwise, viewed toward rotor |
| Installation Position | Shaft horizontal |
| Condensation Drainage Holes | None, open rotor |
| Operating Mode / Duty Cycle | S1 (Continuous Operation) |
| Weight | 3.7 kg (8.16 lbs) |
| Speed Levels | 4 discrete speed steps |
| Termination & Cable Specs | 6-pole coded connector housing (TE 2178773-1) with 6x plug pins (TE 926886-1) |
| Wiring Pinout / Connection | Pin 1: Step 1 (Min.) | Pin 2: Step 2 | Pin 3: Step 3 | Pin 4: Step 4 (Max.) | Pin 5: N (Neutral) | Pin 6: PE (Protective Earth) |
| Switching Requirement | Switch must interrupt the circuit during stage switching |
| Motor Protection | Thermal overload protector (TOP) internally connected |
| Electrical Protection Class | Class I (with customer-connected protective earth) |
| Touch Current (IEC 60990) | < 0.75 mA (Measuring circuit Fig. 4, TN system) |
| Insulation Class | Class F |
| Ingress Protection (IP) | IP20 (Installation- and position-dependent per EN 60034-5) |
| Moisture / Environmental Class | H0 (Dry environment) |
| Operating Temperature | -25 °C to +45 °C (-13 °F to +113 °F) |
| Storage / Transport Temperature | -40 °C to +80 °C (-40 °F to +176 °F) |
| Conformity & Standards | CE, EN 60335-1 |
| Safety Approvals | UL 1004-1, CSA C22.2 No. 100, RoHS Compliant (ROHS3) |
Applications
The ebm-papst D2E146-HT75-45 dual-inlet centrifugal blower is purpose-engineered for ducted HVAC air handling units, ventilation plenums, and commercial air curtains requiring forced draft delivery against static pressure resistance. It is widely installed across industrial drying tunnels, curing ovens, reflow soldering stations, and forced-air heat exchangers where multi-stage airflow throttling is critical. Maintenance technicians and OEM designers also rely on this flanged blower package for electronic enclosure exhaust plenums, fume extraction hoods, and commercial refrigeration evaporators.
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