Overview
The Comair Rotron 028023 Muffin MU3A1 is a compact AC axial fan engineered for reliable thermal management in industrial and commercial electronics applications. This fan delivers consistent airflow for cooling electronic components, power supplies, control cabinets, and general ventilation in harsh environments. The Muffin series is a proven design for OEM cooling solutions and field retrofits in industrial automation systems.
Key Features
- 230VAC 50/60Hz dual voltage operation for global deployment
- Compact 120mm x 38mm (4.72″ x 1.50″) form factor fits standard mounting cavities
- Sleeve bearing design for cost-effective, long-life operation
- Low power consumption at 14W rated for energy-efficient cooling
- 3100 RPM nominal speed with flange mount compatibility
- Quiet operation suitable for office and industrial environments
Technical Specifications
The Comair Rotron 028023 operates efficiently across standard industrial power configurations. Its electrical design provides reliable startup and running characteristics with 0.13A locked rotor current, ensuring compatibility with standard motor protection circuits. The mechanical design features robust sleeve bearings for extended service life in continuous-duty applications.
Typical Applications
- Industrial control cabinets and equipment enclosures
- Power supplies and inverter cooling
- Semiconductor testing and manufacturing equipment
- Telecommunications and network equipment
- HVAC system components and ductwork
- General ventilation in industrial facilities
Compatibility & Replacements
Compatible With
- Standard 120mm x 38mm mounting flange cavities
- Industrial control cabinets with 230VAC power distribution
- Equipment designed for Muffin series AC fans
- Terminal strip and wire-lug connection systems
Replaces / Drop-In Replacement For
- Earlier Comair Rotron Muffin series models (028021, 028022)
- NMB 4715MS-23T-B50-A00
- ebm-papst 4606N and 4606X series
- Multicomp MC19681
Works With
- Dual voltage 220/230VAC @ 50/60Hz power systems
- Standard AC motor protection and thermal overload relays
- Flange-mount bracket assemblies and duct adapters
- Industrial HVAC and cooling infrastructure




