EN 55032 / CISPR 32 Class A Conducted Emission (CE) Limits
Class A Equipment – AC Mains Power Ports (Identical to legacy EN 55022 / CISPR 22 limits)
Quick reference for Class A Conducted Emission (CE) limits under EN 55032 / CISPR 32 and EN 55022 / CISPR 22 standards for AC mains power ports. The limits are identical between the standards.
Class A (Industrial)
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EN 55032 Class A Conducted Emission Overview
EN 55032 (harmonized under the EU EMC Directive and aligned with CISPR 32) details the electromagnetic emission requirements for Multimedia Equipment (MME). Conducted Emission (CE) testing on AC mains ports measures the RF disturbance voltage fed back onto the power grid to ensure the protection of public power distribution systems.
Note on EN 55022 / CISPR 22: EN 55032 / CISPR 32 has officially superseded the legacy standards EN 55022 and CISPR 22. However, the conducted emission limit requirements on AC mains power ports remain completely identical between the standards, meaning the limits presented here apply equally for evaluations under EN 55022 / CISPR 22.
Class A Equipment: Designed for use in commercial, industrial or business environments. Class A limits are less stringent compared to Class B because commercial and industrial electrical environments are expected to tolerate larger ambient electromagnetic noise. Devices passing Class A limits but failing Class B cannot be marketed for residential use and must carry appropriate warnings.
How to read the EN 55032 Class A conducted-emission reference
User task
Use this Class A page for RF disturbance voltage on an AC mains port of multimedia equipment. It keeps the EN 55032 / CISPR 32 adoption context visible and is an engineering limit reference, not a conformity decision.
Choose before comparing
Confirm that the port is an AC mains port and that the comparison uses the conducted setup. The table covers 0.15–30 MHz in dBµV; detector, RBW, LISN and port wiring must follow the applicable edition and test plan, and no antenna distance belongs to this CE result.
What the displayed rows mean
- Frequency and unit
- 0.15–30 MHz is shown as conducted disturbance voltage in dBµV at the AC mains port.
- Detector and receiver setup
- Quasi-peak and average rows are separate; the applicable RBW, LISN configuration and port arrangement must be confirmed in the test plan.
- Class boundary
- Class A is the commercial, industrial or business context. Do not select this table for a residential Class B decision.
Common misread
Class A is not a relaxed universal limit: the intended environment and the AC-port method still matter. Do not reuse these conducted rows as radiated dBµV/m limits or infer a certification result from a pre-compliance comparison.
Reference boundary
EMCCalc summarizes the public IEC Webstore record and the displayed engineering rows. The purchased standard, the applicable national adoption and the complete measurement procedure remain authoritative.
Content review date:
Source and verification
- Primary source
-
IEC Webstore — CISPR 32:2015+AMD1:2019 CSV Class A, conducted-emission requirements; check the adopted EN edition for market use
- Applicability
- Multimedia equipment in the applicable Class A environment; this lookup is not a product-scope determination.
- Read this limit with
-
- AC mains power ports
- 0.15–30 MHz
- Quasi-peak and average detectors
- dBµV
- No measurement distance applies to this conducted-port table
- Last source-link and context review
- Verification method
- The source link, edition/section locator, and measurement context were reviewed against the values shown here. This reference is not a formal conformity assessment or certification.
Engineering reading
Choose the correct equipment class, port, detector, frequency range, facility, and distance before comparing a measurement to a limit.