Description
The ebm-papst W1G300-BB19-01 (also known as W1G300BB1901) is an energy-efficient 300 mm (11.8 in) EC axial fan module integrating an advanced M1G055-BI ESM motor into a pre-mounted aerodynamic wall ring with protective guard grille. Operating from a single-phase 230 VAC (50/60 Hz) supply, this high-performance unit provides dual selectable speed modes delivering up to 1300 RPM, 821 CFM (1395 m³/h) of free air displacement, and up to 0.14 in H₂O (35 Pa) back pressure while consuming only 35 W. The module features five sickled blades molded from fiberglass-reinforced PA6 composite, durable PPTD 20 wall housing, dual ball bearings, and an internal thermal overload protector (TOP) with integrated soft start.
Key Features
- High-Efficiency ESM Drive: Integrates brushless EC motor technology delivering substantial energy savings compared to traditional shaded-pole refrigeration motors.
- Integrated Wall Ring Assembly: Features a rugged aerodynamic PPTD 20 plastic wall ring and finger guard grille for rapid mounting.
- Dual Factory Speeds: Offers two operational speed selections via a simple control line switch for flexible airflow tuning.
- Internal Motor Protection: Built-in thermal overload protection and controlled soft start safeguard electronics against overheating and startup mechanical stress.
- Durable Aerodynamic Impeller: Five fiberglass-reinforced PA6 sickled blades provide exceptionally quiet acoustic operation with long-life maintenance-free ball bearings.
Technical Specifications
| Manufacturer | ebm-papst |
|---|---|
| Manufacturer Part Number (MPN) | W1G300-BB19-01 |
| Alternate Part Number | W1G300BB1901 |
| Item Number | 50089-5-9980 |
| Integrated Motor Model | M1G055-BI |
| Product Series | ESM (Energy Saving Motor) S-Series |
| Product Category | EC Axial Fans |
| Fan / Component Type | EC Axial Fan with Wall Ring and Guard Grille |
| Phase & Supply Type | 1~ Single-Phase AC (EC Drive) |
| Rated Voltage | 230 VAC |
| Frequency | 50 / 60 Hz |
| Speed (RPM) – High Speed | 1300 RPM |
| Speed (RPM) – Low Speed | 900 RPM |
| Power Input (Max Load) | 35 W |
| Rated Current Draw (Max Load) | 0.27 A |
| Current Draw (Free Air – High Speed) | 0.25 A |
| Airflow (High Speed – Free Air) | 821 CFM (1395 m³/h) |
| Max. Back Pressure | 0.140 in H₂O (35 Pa) |
| Sound Pressure Level (High Speed) | 51 – 52 dB(A) at 1 m |
| Sound Power Level (High Speed) | 57 – 58 dB(A) |
| Airflow Direction | Direction ‘V’ (Exhaust Over Struts) |
| Impeller Size | Ø 300 mm (11.8 in) |
| Number of Blades | 5 |
| Housing Dimensions | 360 × 360 × 92.0 mm (14.17 × 14.17 × 3.62 in) |
| Mounting Hole Pitch | 4 × 90° on Ø 380 mm Bolt Circle |
| Impeller Material | PA plastic 6, fiberglass-reinforced |
| Wall Ring Material | Plastic, PPTD 20 |
| Direction of Rotation | Counter-clockwise, seen on rotor |
| Bearing Type | Maintenance-Free Ball Bearings |
| Installation / Mounting Position | Any (Universal Horizontal / Vertical) |
| Operating Mode / Duty Cycle | Continuous (S1) |
| Product Weight | 1.75 kg (3.86 lbs) |
| Termination & Cable Specs | 3-Wire Lead Cable AWG20 with Crimped Brass Tips (Lateral Exit) |
| Lead Length | 450 mm (17.72 in) with 20 mm Stripped/Crimped |
| Wiring Pinout | Black = L1 (Mains Supply), Blue = N (Neutral), Brown = Speed Selection (Switch to L1/N) |
| Control Features | 2 Speed Steps (Max/Min Selection), Soft Start |
| Motor Protection | Thermal Overload Protector (TOP) Wired Internally |
| Electrical Protection Class | Class II |
| Ingress Protection (IP Rating) | IP54 (Motor / Assembly) |
| Insulation Class | Class B |
| Humidity Class | F3-1 |
| Min. Ambient Operating Temperature | -30 °C (-22 °F) |
| Max. Ambient Operating Temperature | +50 °C (+122 °F) |
| Permissible Storage/Transport Temperature | -40 °C to +80 °C (-40 °F to +176 °F) |
| EMC Immunity | EN 61000-6-2 (Industrial Environment) |
| EMC Harmonics | EN 61000-3-2/3 |
| EMC Interference Emission | EN 61000-6-3 (Household Environment) |
| Conformity & Approvals | CCC, CE, CSA C22.2 No. 77, EAC, UL 2111, VDE, EN 60335-1, RoHS3 |
Applications
The ebm-papst W1G300-BB19-01 axial wall fan is engineered for commercial refrigeration units, supermarket reach-in display cases, bottle coolers, and walk-in cold rooms requiring quiet air circulation. It serves as an OEM and retrofit ventilation solution in air-cooled condenser assemblies, evaporators, beverage dispensers, and heat pump ventilation modules. The integrated mounting ring and protective grille also make it suitable for electrical switchgear ventilation, food processing cold storage, and decentralized exhaust ducting.
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