EN 55032 / CISPR 32 Class A RE Limits
Radiated Emissions Requirements for Class A Equipment (Identical to legacy EN 55022 / CISPR 22 limits)
This table details the Radiated Emission (RE) limit requirements for Class A equipment according to EN 55032 / CISPR 32 and legacy EN 55022 / CISPR 22 standards, covering measurements up to 1 GHz and above 1 GHz for OATS/SAC, FAR, and FSOATS facilities. The limits are identical between the standards.
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Test Setup & Technical Overview
Detailed engineering guide for Multimedia Equipment Radiated Emissions (Class A)
Technical Overview: Protection of Wireless Services
EN 55032 (harmonized from CISPR 32) regulates the electromagnetic compatibility of Multimedia Equipment (MME). Today, EN 55032 / CISPR 32 has officially replaced the legacy Information Technology Equipment (ITE) standards EN 55022 and CISPR 22. Because the Class A radiated emission limits are identical between the old and new standards, the limits presented here apply equally to assessments under EN 55022 / CISPR 22.
Radiated Emission (RE) limits are established to prevent electromagnetic interference from disrupting nearby radio, television, and wireless communication services in residential, commercial, and industrial environments. Restricting these emissions is crucial for maintaining the integrity and reliability of critical spectrum services.
Test Configuration: Antenna Height Scan & Distance
RE testing under EN 55032 is conducted on an Open Area Test Site (OATS) or a Semi-Anechoic Chamber (SAC). The Equipment Under Test (EUT) is set up on a non-metallic turntable at a height of 0.8 m for table-top equipment or 1.5 m for floor-standing equipment.
During the scan, the turntable rotates 360 degrees, and the receiving antenna is continuously scanned in height from 1-4 m. Measurements are taken at a distance of 3 m or 10 m to locate the absolute maximum field strength. If you need to extrapolate limits between 3m and 10m, you can use our Distance Extrapolation Calculator.
Interpretation of Limits: Class A vs. Class B
EN 55032 classifies equipment into Class A (industrial, professional, or commercial environments) and Class B (residential environments).
Class A limits are less stringent, as commercial environments generally exhibit higher ambient noise margins. In contrast, Class B limits are roughly 10 dB stricter across the frequency range to safeguard residential radio reception. Devices that pass Class A limits but fail Class B cannot be marketed for residential use and must carry appropriate warning labels.
How to read the EN 55032 Class A radiated-emission reference
User task
Use this Class A page to compare field strength from multimedia equipment with the radiated-emission rows used for commercial or industrial environments. The table keeps facility, distance and detector choices visible instead of hiding them behind one generic limit.
Choose before comparing
Select the facility and the measurement distance represented by the row before reading a margin. The reference covers 30 MHz–6 GHz in dBµV/m; below 1 GHz the receiver context uses quasi-peak and 120 kHz, while above 1 GHz average/peak and 1 MHz are separate conditions.
What the displayed rows mean
- Frequency and detector split
- 30 MHz–6 GHz is divided at 1 GHz so that quasi-peak / 120 kHz is not confused with average or peak / 1 MHz.
- Facility and distance
- OATS, SAC, FAR and FSOATS rows can use 3 m or 10 m; the selected geometry is part of the limit and cannot be silently swapped.
- Class boundary
- Class A describes the commercial/industrial context. Residential use requires the separate Class B page and its own setup assumptions.
Common misread
A Class A radiated row is not a conducted AC-port limit. Do not replace the facility or distance with a convenient extrapolation, and do not call a table comparison a certification result.
Reference boundary
EMCCalc summarizes the public IEC Webstore record and the facility/detector context encoded by this page. The adopted standard and the complete site validation procedure remain authoritative.
Content review date:
Source and verification
- Primary source
-
IEC Webstore — CISPR 32:2015+AMD1:2019 CSV Class A radiated-emission requirements; table identifiers are retained in the lookup
- Applicability
- Multimedia equipment in the applicable Class A environment; select the facility and test distance represented by the table row.
- Read this limit with
-
- 30 MHz–6 GHz
- OATS/SAC, FAR, or FSOATS as shown
- 3 m or 10 m as shown
- Quasi-peak / 120 kHz below 1 GHz; average and peak / 1 MHz above 1 GHz
- dBµV/m
- 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.