Overview
The EPAS/EPNS series represents the next generation of EC plug fans, engineered with advanced inner rotor motor technology for superior performance and reliability. These fans deliver IE5+ ultra-high efficiency with stepless speed control, making them ideal for critical applications requiring precision environmental management and energy optimization.
Available in two configurations: EPAS with airfoil blades for maximum strength and durability, and EPNS with plate blades for lightweight construction and corrosion resistance. Both models feature IP66 protection, -20°C to +60°C operating range, and sophisticated electronic control capabilities.
Parameters
EPAS and EPNS models are available in multiple sizes to accommodate diverse application requirements. Each series offers optimized blade geometry for specific performance characteristics.
| Model Series | Blade Type | Number of Blades | Diameter Range | Power Range | Key Characteristics |
|---|---|---|---|---|---|
| EPAS | Airfoil Blades | 11 | 250-560mm | 0.55-5.5KW | Maximum strength and durability, optimal for harsh environments |
| EPNS | Plate Blades | 8 | 280-560mm | 0.55-5.5KW | Lightweight construction, superior corrosion resistance |
Comparison: EPAS excels in applications prioritizing mechanical strength and longevity in demanding conditions. EPNS is optimized for environments where lightweight construction and corrosion resistance are paramount.
Advantages
Inner Rotor EC Motor
Fast dynamic response with extended bearing life. Advanced motor design ensures rapid speed adjustment and exceptional reliability over extended operating periods.
IE5+ Ultra-High Efficiency
Delivers 20-30% energy savings compared to standard EC fans. Premium efficiency classification ensures lower operating costs and reduced environmental impact.
Smart Integration
BMS-ready architecture with Modbus support. Seamlessly integrates with building management systems for intelligent monitoring and control.
Stepless Speed Control
0-10V and RS485 control options. Provides precise, smooth speed adjustment without discrete steps for optimal performance matching.
Extended Operating Range
Reliable operation from -20°C to +60°C. Optimized for extreme temperature environments without performance degradation.
IP66 & 700h Salt Spray Test
Full dust and water ingress protection with proven corrosion resistance. Certified for harsh and marine environments.
Features
F-Class Insulation
High-temperature insulation system rated for 155°C, ensuring long-term reliability and safety in demanding thermal environments.
IP66 & 700h Salt Spray
Complete environmental sealing with proven salt spray resistance. Suitable for marine, coastal, and extreme corrosive applications.
Electronic Protection
Comprehensive multi-level protection: overvoltage, undervoltage, locked rotor detection, and temperature overrun safeguards.
Maintenance-Free Bearings
Advanced sealed bearing design rated for 5-8 years continuous operation without lubrication or scheduled maintenance.
Enhanced Shaft Seal
Double-layer mechanical seal system prevents contamination ingress and extends motor lifespan in wet and dusty conditions.
Selection Guide
Choose between EPAS and EPNS models based on your specific application requirements. The following guide helps identify the optimal configuration for your needs.
| Application Requirement | Recommended Model | Rationale |
|---|---|---|
| Strength & Durability Priority | EPAS | Airfoil blades provide maximum mechanical strength and resistance to vibration |
| Lightweight Construction Priority | EPNS | Plate blade design minimizes weight for modular installations |
| Corrosive Environment | EPNS | Enhanced corrosion resistance suitable for chemical exposure |
| Harsh Industrial Environment | EPAS | Robust construction withstands vibration, dust, and temperature extremes |
| Washdown/Wet Applications | EPAS / EPNS | Both models feature IP66 protection suitable for wet environments |
Application Guides
The EPAS/EPNS series is engineered for diverse industrial and commercial applications. Explore recommended configurations for your specific industry.
| Industry/Application | Recommended Model | Key Benefit |
|---|---|---|
| Data Center Cooling | EPAS | IE5+ efficiency reduces energy consumption and operating costs |
| Cleanroom AHU Systems | EPAS / EPNS | IP66 protection with low particle shedding and low noise |
| Food Processing Plants | EPNS | Corrosion-resistant design suitable for washdown environments |
| Pharmaceutical Manufacturing | EPAS | Maintenance-free operation meets pharmaceutical cleanliness standards |
| Hospital HVAC Systems | EPAS | Reliable, energy-efficient operation critical for healthcare facilities |
| Marine & Offshore | EPNS | 700h salt spray tested for extreme marine corrosion resistance |
| Mining & Ventilation | EPAS | Robust construction handles dust and extreme temperature variations |
| Smart Building Integration | EPAS / EPNS | BMS-ready with Modbus control for intelligent building management |
Comparison with Other EC Fans
The EPAS/EPNS series offers superior performance, efficiency, and reliability compared to alternative EC fan solutions in the market.
| Feature | Insovent EPAS/EPNS | German Premium Brands | Chinese Mainstream EC |
|---|---|---|---|
| Efficiency Class | IE5+ | IE4 / IE5 | IE3 / IE4 |
| Motor Design | Inner Rotor | External Rotor | External Rotor |
| IP Rating | IP66 | IP55 / IP66 | IP54 / IP55 |
| Salt Spray Test | 700h Certified | 500h-1000h | No Test / Limited |
| Operating Range | -20°C to +60°C | -10°C to +50°C | 0°C to +40°C |
| Control Options | 0-10V, RS485, BMS | 0-10V, RS485 | 0-10V Only |
| Bearing Life | 5-8 Years Maintenance-Free | 3-5 Years | 2-3 Years |
| Cost Position | Premium Value | Premium | Budget |
Comparison with External Rotor
Inner rotor technology in the EPAS/EPNS series offers distinct advantages over traditional external rotor designs in critical applications.
| Characteristic | Inner Rotor (EPAS/EPNS) | External Rotor (Traditional) |
|---|---|---|
| Dynamic Response | Faster Speed Adjustment | Slower Response Due to Mass |
| Bearing Configuration | Optimized for Longer Life | Higher Load on Bearings |
| Vibration Level | Lower Vibration Profile | Higher Vibration from Mass |
| Heat Dissipation | Efficient Through Frame | Relies on Air Circulation |
| Efficiency in Partial Load | Maintains High Efficiency | Efficiency Drops at Low Speed |
| Space Efficiency | Compact Motor Design | Larger Overall Footprint |
| Control Precision | Smooth Stepless Control | May Show Control Lag |
Fan Wall Configuration
The EPAS/EPNS series excels in modular fan wall configurations, enabling flexible, scalable air movement solutions for large facilities. Combine multiple units to achieve precise airflow management while maintaining individual speed control and monitoring capabilities.
Key Benefits of Fan Wall Systems:
- Modular scalability - add or remove fans to match facility requirements
- Individual speed control - optimize each fan for specific zone conditions
- Redundancy - maintain operation if individual units require service
- Distributed load - extends bearing life and reduces vibration
- Energy optimization - run only needed units during partial load
- Smart monitoring - real-time status via BMS integration
Fan wall installations benefit significantly from the EPAS/EPNS IE5+ efficiency. In large-scale deployments, the energy savings from premium efficiency compounds across multiple units, delivering substantial long-term cost reductions while maintaining optimal environmental control.