Description
Product Overview
The uxcell CW4B-20A-S EMI Filter is engineered to meet the demanding requirements of modern three‑phase industrial systems. Rated for AC 380 V at 20 A, this filter provides reliable suppression of electromagnetic interference (EMI) across a wide frequency range, protecting sensitive equipment from voltage spikes and noise. Its robust metal housing offers excellent durability and resistance to harsh environmental conditions, while the six‑pin configuration with 8 mm terminals simplifies wiring and ensures a secure connection.
Key specifications include a compact overall size of 95 × 52 × 38 mm, a net weight of 243 g, and a temperature rating of up to 40 °C. The filter complies with industry standards for EMI performance, making it a trusted component for power supplies, motor drives, and control panels. Designed for easy integration, the fixing hole diameter of 4.9 mm and center distance of 75 mm allow straightforward mounting on standard DIN rails or chassis.
![[Product front view showing all components]](https://www.antiquezone.store/wp-content/uploads/2026/07/63c3e83d92364f15a35b51f2f67ac94e.jpg)
Usage
This EMI filter is ideal for a variety of industrial applications where clean power is essential. Use it in motor control centers, variable frequency drive (VFD) installations, PLC power inputs, and any three‑phase equipment that requires protection from conducted and radiated EMI. The filter’s metal construction and six‑pin layout make it suitable for harsh factory floors, outdoor enclosures, and environments with high vibration.
Installation is straightforward: connect the 8 mm terminals to the power line, secure the filter using the provided mounting holes, and verify polarity. The filter can be employed in both new equipment builds and retrofits, providing immediate improvement in signal integrity and reducing the risk of unexpected shutdowns caused by electrical noise.
Why Choose Us
Choosing the uxcell CW4B-20A-S means selecting a product backed by rigorous quality control and a commitment to customer satisfaction. Each filter undergoes comprehensive testing for voltage endurance, current handling, and EMI attenuation to ensure consistent performance across batches. Our manufacturing process utilizes high‑grade metal alloys for the enclosure, guaranteeing resistance to corrosion and mechanical stress.
We provide responsive technical support and a clear warranty policy, giving you confidence that any issues will be addressed promptly. With a strong track record in the industrial and scientific market, uxcell delivers components that meet the exacting standards of engineers and system integrators worldwide.
Key Features
- High‑performance EMI suppression for 380 V, 20 A three‑phase systems
- Durable metal housing protects against corrosion and impact
- Six‑pin design with 8 mm terminals enables quick, secure wiring
- Compact dimensions allow easy integration into tight spaces
- Responsive after‑sales support and warranty for peace of mind
FAQ
What size wiring terminals does the filter use?
The filter is equipped with 8 mm terminals, which are compatible with standard industrial wire gauges and simplify the connection process.
Can this filter be used in outdoor installations?
Yes. The metal enclosure is designed to withstand harsh environmental conditions, and the filter operates reliably up to 40 °C, making it suitable for outdoor or semi‑outdoor applications.
How does the filter improve equipment reliability?
By attenuating electromagnetic interference, the filter reduces voltage spikes and noise that can cause premature component wear, unexpected shutdowns, or data errors, thereby extending the lifespan of connected equipment.
Is the filter compatible with variable frequency drives?
Absolutely. The CW4B-20A-S is specifically rated for use with VFDs and other motor control equipment, providing the necessary EMI protection to maintain smooth operation.
What warranty does uxcell offer for this product?
uxcell provides a standard one‑year warranty covering manufacturing defects, along with access to technical support for installation and troubleshooting assistance.




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