Description
The NMB 11938MB-A1N-EA-00 is an original NMB (MinebeaMitsumi) AC axial cooling fan designed for industrial equipment, electronic systems, and enclosure cooling applications. Featuring a standard 119 x 119 x 38 mm dimension, this compact AC fan provides reliable airflow performance for applications requiring continuous ventilation and stable thermal management.
Operating at 115VAC with 50/60Hz frequency support, the 11938MB-A1N-EA-00 uses a durable ball bearing structure and shaded pole induction motor design to achieve long-term reliable operation. The fan delivers up to 103.6 CFM airflow and 76.4 Pa maximum static pressure at 60Hz operation, making it suitable for industrial cooling systems where consistent airflow is required.
Manufactured by NMB (MinebeaMitsumi), this AC axial fan features an aluminum die-cast frame, UL94V-0 rated plastic impeller, and quick-connect 2-pin terminals. The model is also cross-referenced with 4715MS-12T-B50-A00, providing a replacement option for equipment originally using the 4715MS series fan.
Key Features
- Original NMB (MinebeaMitsumi) AC axial cooling fan
- Model: 11938MB-A1N-EA-00
- 11938MB series industrial cooling fan
- Dimension: 119 x 119 x 38 mm
- Rated voltage: 115VAC
- Frequency: 50/60Hz
- Dual ball bearing design for extended service life
- Aluminum die-cast frame construction
- UL94V-0 plastic impeller material
- Quick-connect 2-pin terminal connection
- Legacy replacement reference: 4715MS-12T-B50-A00
- 100,000 hours L10 life expectancy at 25°C
Technical Specifications
| Manufacturer | NMB (MinebeaMitsumi) |
| Model | 11938MB-A1N-EA-00 |
| Product Series | 11938MB Series |
| Legacy Cross Reference | 4715MS-12T-B50-A00 |
| Fan Type | AC Axial Cooling Fan |
| Dimension | 119 x 119 x 38 mm |
| Rated Voltage | 115VAC |
| Frequency | 50 / 60Hz |
| Starting Voltage | 75VAC |
| Rated Current | 0.25A (50Hz) / 0.21A (60Hz) |
| Rated Power | 15.5W (50Hz) / 14.5W (60Hz) |
| Speed | 2600 RPM (50Hz) / 2900 RPM (60Hz) |
| Airflow | 89.3 CFM (50Hz) / 103.6 CFM (60Hz) |
| Static Pressure | 64.7 Pa (50Hz) / 76.4 Pa (60Hz) |
| Noise Level | 37 dB(A) (50Hz) / 41 dB(A) (60Hz) |
| Bearing Type | Dual Ball Bearing |
| Motor Type | Shaded Pole Induction Motor |
| Motor Protection | Impedance Protection |
| Frame Material | Aluminum Die-Cast |
| Impeller Material | Plastic UL94V-0 |
| Electrical Termination | Quick-Connect Terminal (2-Pin) |
| Operating Temperature | -10°C to +70°C |
| Storage Temperature | -40°C to +70°C |
| Life Expectancy | 100,000 Hours (L10, 25°C) |
| Agency Approvals | UL, CSA, VDE, CE |
Applications
- Industrial control cabinets
- Electronic equipment cooling
- Power supply systems
- Communication equipment
- Automation equipment
- Electrical enclosure ventilation
- Industrial machinery cooling systems
- Power electronics thermal management
Replacement Information
The NMB 11938MB-A1N-EA-00 is a replacement AC axial cooling fan designed for equipment requiring a 119 x 119 x 38 mm, 115VAC cooling fan.
This model is cross-referenced with 4715MS-12T-B50-A00. When replacing an existing fan, verify the voltage rating, frequency, mounting dimensions, terminal configuration, airflow direction, and electrical specifications before installation.
- Replacement Model: 11938MB-A1N-EA-00
- Legacy Reference: 4715MS-12T-B50-A00
- Dimension: 119 x 119 x 38 mm
- Voltage: 115VAC
- Frequency: 50/60Hz
- Terminal: 2-Pin Quick Connect
Specifications
| Manufacturer | NMB Technologies |
|---|---|
| Fan Size | 120 x 120 x 38 mm |
| Voltage Rated | 115 VAC |
| Cooling Type | Axial Fan |
| Air Flow Range | 50 – 150 CFM ( 85 – 255 m³/h ) |
| Static Pressure Range | 2.5 – 10 mmH₂O ( 25 – 100 Pa ) |
| Fan Speed Range | 2,000 – 4,500 RPM |
| Noise | 30 – 45 dB(A) (Standard) |
| Shipping Weight | 1 kg |
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