Schneider Altivar VW3A4404 EMC Footprint Filter

Description

The VW3A4404 is an EMC Footprint Filter designed for use within the Altivar drive series. Manufactured by Schneider Electric, this filter is engineered to mitigate electromagnetic interference (EMI) generated by variable speed drives, ensuring the system remains compliant with electromagnetic compatibility standards. By mounting directly under the drive, it minimizes high-frequency noise emissions, providing a clean electrical environment for sensitive industrial control equipment.

Features

• Optimized footprint design for direct mounting under compatible Altivar drives
• Reduces conducted electromagnetic interference
• Essential for maintaining system-wide EMI compliance
• Compact form factor for space-saving panel installation

Applications

• Variable speed drive installations
• Industrial automation control panels
• Applications requiring reduced high-frequency noise
• Compliance-sensitive industrial electrical environments

Technical Specifications

Installation Guidelines

• Mounting: The filter is designed as a "footprint" type, meaning it should be mounted between the mounting surface and the variable frequency drive (VFD). Ensure the mounting surface is metallic and provides a good electrical connection for grounding.
• Grounding: To be effective, the filter must have a low-impedance connection to the system ground. Use a short, thick braided conductor if additional bonding is required.
• Wiring: Keep input power cables to the filter separated from the output motor cables coming from the drive to prevent noise coupling.
• Heat Dissipation: Ensure that the installation allows for adequate airflow around both the filter and the drive, as the filter may generate heat during normal operation.