Industrial Electronics

New three-phase filters meet IEC 60204-1 for machine applications

29 November 2022

SCHURTER’s new three-phase filters series FMBC EP and FMBD EP meet IEC 60204-1 for machine applications. The filters are suitable for three-phase or three-phase-with-neutral conductor applications. Downsized for smaller footprint, without any compromise to two-stage performance, the new filter series are suitable for use in energy applications such as robotics, power tools, photovoltaic inverters, fast electric vehicle charging and battery storage.

Any machine or system introduced to the European market must bear a CE marking. This marking signifies that the manufacturer guarantees the product is safe for humans and machine equipment, complying with all applicable legal and technical requirements. The requirements according to the Machinery DirectiveSource: SchurterSource: Schurter 2006/42/EC and the Low Voltage Directive 2014/35/EU define minimum standards concerning safety and occupational health requirements in Europe. The details for implementation, as outlined in separate specifications, are known as harmonizing standards.

One of these harmonizing standards is IEC 60204-1, which defines requirements for electrical safety for machines, and applies to electrical, electronic, and programmable electronic equipment as well as networked machines, including control cabinets. The FMBC EP and FMBD EP filters meet all machine safety requirements outlined in IEC 60204-1 standard, specifically that the filters have a short discharge time of the capacitors so that they have a touchable residual voltage of less than 60 V in 1 or 2 seconds after disconnecting the voltage. The insulation value between phases and ground is at least 1 MΩ, achieved with larger resisters. Additionally, any AC socket on the machine is RCD protected 30 mA for human protection.

The FMBC EP and FMBD EP filters are ENEC and cURus approved. Rated current range is from 16 A to 230 A at 520 V AC/760 V AC at ambient temperature 40° C. The standard variants are designed for industrial applications with leakage currents less than 10 mA. Versions rated less than 3 mA are offered for leakage-critical applications. The dielectric strength is greater than 2.25 kV DC L-L and 2.75 kV DC L-PE, and the operating temperature range is from -40° C to 100° C. The new filters are RoHS compliant and bear the CE, UKCA and REACH markings. Pricing for the FMBC EP according to IEC 60204-1 starts at $82.50 each at 100-pieces.

To contact the author of this article, email

Powered by CR4, the Engineering Community

Discussion – 0 comments

By posting a comment you confirm that you have read and accept our Posting Rules and Terms of Use.
Engineering Newsletter Signup
Get the Engineering360
Stay up to date on:
Features the top stories, latest news, charts, insights and more on the end-to-end electronics value chain.
Weekly Newsletter
Get news, research, and analysis
on the Electronics industry in your
inbox every week - for FREE
Sign up for our FREE eNewsletter