ETA-USA RMS, TMS, & TNS EMI Power Line Filters

Introduction

ETA-USA RMS, TMS, and TNS EMI power line filters are high-performance power-entry components designed to reduce electromagnetic interference conducted through AC and DC power lines. Built for demanding commercial and industrial installations, these filters help equipment meet EMC requirements while protecting sensitive systems from electrical noise.

Part Description

The RMS, TMS, and TNS series from ETA-USA are EMI power line filters with two-stage filtering architectures for high attenuation of unwanted conducted emissions and noise. They are available for both single-phase and three-phase power systems, supporting a broad range of installation requirements.

Key characteristics include:

• High-attenuation two-stage EMI filtering
• Single-phase and three-phase configuration options
• 250 V AC/DC and 500 V AC/DC operating versions
• Rated current options up to 400 A
• Suitable for high-power commercial and industrial equipment
• Compliance with ICC, cRU, CE, and RoHS requirements
• Designed to reduce both incoming line noise and noise generated by connected equipment

These filters are well suited to systems where electrical noise can affect reliability, communications, measurement accuracy, or regulatory compliance.

Applications

Potential applications for ETA-USA RMS, TMS, and TNS EMI power line filters include:

• Data center power distribution equipment
• Server racks and network infrastructure
• Manufacturing machinery
• Industrial automation panels
• Motor drives and variable-frequency drives
• Robotics and motion-control systems
• Telecommunications power equipment
• Medical and laboratory equipment
• Test and measurement systems
• Commercial HVAC equipment
• UPS systems and power conversion equipment
• Renewable-energy power control systems

Industries

These EMI power line filters can be used across numerous industries, including:

• Data center and cloud infrastructure
• Industrial automation
• Manufacturing
• Telecommunications
• Medical technology
• Laboratory and scientific research
• Energy and utilities
• Renewable energy
• Transportation infrastructure
• Commercial building automation
• Aerospace and defense support equipment
• Electronics test and production

Usage Ideas

1. Filtered Industrial Control Cabinet
   Install a three-phase filter at the incoming power connection of a machine control cabinet to reduce noise from drives, contactors, and switching power supplies.

2. Data Center Rack Power Upgrade
   Add a suitable filter to a rack-level power distribution assembly to help limit conducted EMI affecting servers, storage systems, and networking hardware.

3. EMC-Conscious Test Bench
   Use a power line filter in a laboratory test bench to reduce mains-borne electrical noise and create a cleaner power environment for sensitive instruments.

Conclusion

ETA-USA RMS, TMS, and TNS EMI power line filters provide a practical solution for controlling conducted electrical interference in high-power commercial and industrial systems. With two-stage filtering, single- and three-phase options, voltage ratings up to 500 V AC/DC, and current capabilities up to 400 A, they are suitable for demanding applications ranging from data centers to factory automation.