EMC in Industry — harsh environment, clear rules.

Drives, switching operations, long cables: the industrial environment is electromagnetically noisy. The generic standards EN 61000-6-2 and -6-4 set the framework for it.

Secure industrial EMC

Why industrial EMC is special

In the industrial environment, powerful switching loads (frequency converters, motors, contactors) meet sensitive measurement and control technology. Correspondingly more interference is present — and devices must be correspondingly more robust.

EN 61000-6-2 — Immunity (industrial)

The generic standard for immunity in the industrial sector requires higher test levels than the residential/commercial environment (EN 61000-6-1) — because stronger interference occurs on site. Testing covers, among other things, ESD, burst and surge (see ESD, Burst & Surge).

EN 61000-6-4 — Emissions (industrial)

The industrial emission limit values (EN 61000-6-4) are less strict than in the residential sector (EN 61000-6-3), since industrial sites are not directly shared with residential areas and broadcast reception.

Product standard before generic standard

The generic standards apply only when no matching product or product-family standard exists. The standards overview explains the classification.

Frequently Asked Questions

Residential or industrial environment — what applies to my device?

The decisive factor is the intended-use environment. Industrial devices must meet higher immunity, but may tend to emit somewhat more. We clarify the exact classification on a project-specific basis. (Check standard revisions against the applicable version.)

What to do when a converter causes interference?

First localize the cause and path, then apply targeted filtering/shielding — see EMC troubleshooting. In the industrial environment, mains filters and clean grounding are often the lever.

Sources: IEC — Generic EMC Standards, EN 61000-6 Overview. The applicable version of the standard is authoritative.