Description
The Alpha 3 KMF3100A is a heavy-duty, high-performance three-phase EMI/RFI mains filter engineered for high-capacity industrial power applications. Delivering up to 100 Amps of continuous current capacity (CE rating) at 400 and 480 VAC, it provides exceptional electromagnetic interference suppression for heavy machinery, motor drives, and industrial distribution systems operating at 50 and 60 Hz.
Built to stringent European and North American standards, the KMF3100A features a robust construction designed to handle demanding electrical environments. With a 50°C maximum ambient temperature rating, high overload capacity, and reliable earth leakage management, it ensures optimal signal integrity, system safety, and compliance with strict industrial EMC requirements.
Key Features
- High-Capacity 3-Phase Filtering: Engineered specifically for heavy-duty 3-phase power systems operating at 400 and 480 VAC.
- 100A CE / 80A UL Amperage: Provides massive current handling for industrial control panels and high-power motor drives.
- Frequency Compatibility: Fully optimized for both 50 Hz and 60 Hz power supplies.
- Robust Overload Capacity: Supports 135% overload for up to 2 hours for enhanced operational durability under heavy loads.
- Extended Thermal Range: Rated for reliable performance in ambient temperatures up to 50°C.
- Rigorous Compliance: Built to meet international EN, UL, and cUL safety and performance standards.
Specifications
| Technical Specification | Detail |
|---|---|
| Product Model | KMF3100A |
| Brand / Manufacturer | Alpha 3 Manufacturing |
| Product Type | 3-Phase EMI/RFI Mains Filter |
| Voltage Rating | 400 / 480 VAC |
| Current Rating (CE / UL) | 100 Amps (CE) / 80 Amps (UL) |
| Power Supply Frequency | 50 / 60 Hz |
| Number of Input Phases | 3-Phase |
| Overload Capacity | 135% for 2 hours |
| Max Ambient Temperature | 50°C |
| Earth Leakage Current | 4.3 mA |
| Compliance Standards | EN 60939 (EU), UL 1283 (UL), CSA 22.2 (cUL) |
| Mounting Type | Panel Mount |






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