With the rapid advancement of industrial automation and high-power electronics, harmonic distortion has become a major concern in modern power systems. Active Harmonic Filters (AHFs) are critical in mitigating these distortions and ensuring power quality. However, choosing the right AHF isn’t just about technical specifications—it also depends on the installation mode, which affects space usage, cooling efficiency, and system integration.
In this blog, we’ll explore the three main installation types of Active Harmonic Filters—wall-mounted, rack-mounted, and cabinet-integrated—and guide you through choosing the right configuration based on your space and design requirements.
1. Wall-Mounted Active Harmonic Filters: Compact and Versatile
Best for: Limited floor space, small-scale installations, or retrofitting existing systems.
Overview: Wall-mounted AHFs, like the CoEpower Wall-Mounted Active Harmonic Filter, offer a space-saving solution with high flexibility. Designed to be easily mounted on vertical surfaces, this type is ideal for applications where floor space is scarce or needs to remain clear for safety or operational flow.
Key Features:
Power range: Up to 100A
Compact footprint with efficient thermal management
Plug-and-play installation
Real-time harmonic detection and compensation
Applications:
Small industrial equipment, commercial buildings, data centers with limited space, and renewable energy systems.
2. Rack-Mounted Active Harmonic Filters: Modular and Scalable
Best for: Data centers, telecom rooms, or industrial facilities that use standard 19″ or 21″ equipment racks.
Overview:
The Rack-Mounted AHF Module from CoEpower is built for standardized deployment in control cabinets or server racks. This modular approach allows for scalability, letting users add or remove modules as demand grows or changes.
Key Features:
Compatible with standard racks (600mm depth)
Available in multiple ratings (e.g., 50A, 100A)
Modular architecture for flexible expansion
Parallel operation support for load balancing
Applications:
Telecom stations, IT infrastructure, process control systems, and modular power rooms.
3. Cabinet-Integrated Active Harmonic Filters: All-in-One System Solutions
Best for: Large-scale industrial systems, new construction projects, or environments where a turnkey power quality solution is preferred.
Overview:
Cabinet-integrated AHFs combine filtering, protection, and control systems in a single enclosure. These units are designed for centralized harmonic mitigation, particularly in complex or heavy-duty industrial settings.
Key Features:
Customizable cabinet designs
Integrated control panel and HMI (Human-Machine Interface)
IP-rated enclosures for harsh environments
Higher current capacities (e.g., >300A)
Applications:
Steel plants, automotive manufacturing, semiconductor fabs, and large commercial buildings.
4. How to Choose the Right AHF Installation Mode
Your selection should consider the following:
Available space: Wall-mounted for tight areas, rack-mounted for modular setups, cabinet-integrated for centralization.
System architecture: Choose based on whether decentralized or centralized filtering is required.
Scalability: Rack-mounted offers the best flexibility for future growth.
Environmental conditions: Cabinet-integrated models often include better dust, moisture, and thermal protections.
Comparison Table:
| Type | Space Efficiency | Scalability | Typical Use | Max Capacity |
|---|---|---|---|---|
| Wall-Mounted | High | Medium | Retrofits, compact systems | ~100A |
| Rack-Mounted | Medium | High | Data centers, modular setups | ~100A/module |
| Cabinet-Integrated | Low | Low–Medium | Industrial plants, new builds | >300A |
In Conclusion, choosing the right Active Harmonic Filter depends on electrical capacity and performance, and how well it fits into your existing infrastructure. By understanding the strengths of each installation mode—wall-mounted, rack-mounted, and cabinet-integrated—you can make a smarter decision that improves power quality while optimizing space and efficiency.
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