TTI and Schaffner Partner to Help Engineers Navigate New EMC Regulations Extending to 9kHz

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TTI IP&E – Europe, in collaboration with Schaffner, part of TE Connectivity, has announced a joint initiative to support engineers in preparing for the upcoming extended electromagnetic compatibility (EMC) regulations, which will soon apply to frequencies down to 9kHz. These new regulations will have a major impact on the EMC landscape, ensuring greater compatibility as powertrains and grid-connected interfaces grow amid the global energy transition toward electrification and sustainability.

The forthcoming EMC standards will require significant updates to existing product families and demand that new designs incorporate the extended requirements from the outset. While several EMC standards—such as FCC Part 15, CISPR-11, and CISPR-22—already specify limits below 150kHz, the harmonisation process will begin with generic standards, followed by product-specific standards. Once implemented, all new products must comply with the updated version, and existing products on the market must also meet the requirements, regardless of their release date.

TE recommends that engineers start early by evaluating new designs through pre-compliance measurements based on draft standard limit levels to avoid future development delays. TE offers a comprehensive portfolio of magnetic and filter solutions addressing both standard and customised EMC and power quality needs. Its expertise spans from design consultation and testing to integration and long-term system support, ensuring a compliant and smooth transition to the new EMC framework.

Engineers can leverage TE’s passive and active filter technologies to mitigate the potential cost impact of the 9kHz regulations by integrating appropriate filters early in the design phase. Conventional EMI filters can reduce emissions but may introduce resonance effects, highlighting the need for expert guidance to balance compliance, performance, and cost-efficiency.

For electric vehicle (EV) charging equipment, TE provides specialised EMC filtering solutions:

• AC charging filters for single-phase and three-phase systems, with current ratings from 1A to 2300A and voltages up to 760VAC, offering standard to high attenuation levels.
• DC charging filters, including the EVX series, are designed for EV applications with high current (up to 1600A) and voltage requirements (up to 1500VDC) and options for low leakage current.

To verify compliance, testing and measurement must now begin from 9kHz, and TE offers both in-house facilities and external testing support. Most EMI testing equipment, including artificial mains networks and EMI receivers, is already capable of measuring at this lower frequency.

Markus Lorenz, Director, Industry Marketing, Industrial at TTI, Inc. – Europe, stated: “The rapid pace of electrification demands robust solutions for EMC. Our partnership with Schaffner, part of TE Connectivity, empowers our customers with unparalleled access to industry-leading expertise and innovative filter technologies. This collaboration is crucial in helping them not only meet the challenging new 9kHz EMC regulations cost-effectively but also to ensure the reliability and performance of their critical systems in an increasingly connected and electrified world. We are committed to guiding our customers through this transition seamlessly.”

Through this collaboration, TTI and TE aim to help engineers achieve a smooth, compliant, and cost-effective transition to the new EMC standards, safeguarding product reliability and performance across industries — including the rapidly growing EV infrastructure sector.