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EN 55035:2017/CISPR 35

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EN 55035:2017 / CISPR 35

EN 55035 (CISPR 35) is the immunity counterpart to EN 55032 for multimedia equipment, replacing EN 55024. This article covers its scope, immunity test levels, how it relates to its predecessor, and Compatible Electronics' accredited testing services. Part of the Compatible Electronics Learning Center.

What is EN 55035 / CISPR 35?

EN 55035 is the European harmonized edition of CISPR 35, specifying electromagnetic immunity requirements for multimedia equipment. Together with CISPR 32 / EN 55032 (emissions), it forms the complete EMC standard set for multimedia equipment. EN 55035 replaces EN 55024 (CISPR 24), which was the immunity standard for IT equipment — the predecessor category now absorbed into the broader multimedia equipment classification.

EN 55035 was first published in 2017. Transition periods in various markets have now expired, making EN 55035 the required immunity standard for CE Marking of multimedia equipment in Europe. Compatible Electronics is NVLAP-accredited for EN 55035 testing across our three locations.

Immunity Phenomena and Test Levels

1

Electrostatic Discharge (IEC 61000-4-2)

±4 kV contact discharge, ±8 kV air discharge. Applied to all exposed metallic parts and operator-accessible controls to verify the equipment continues to function after an ESD event from a human body.

2

Radiated RF Immunity (IEC 61000-4-3)

3 V/m from 80 MHz to 1 GHz (with spot frequencies at higher levels). Simulates the electromagnetic environment from nearby intentional transmitters — mobile phones, wireless LAN, etc.

3

Electrical Fast Transient / Burst (IEC 61000-4-4)

±1 kV on power ports, ±0.5 kV on signal ports. Simulates the effect of switching inductive loads (motors, relays) on the supply circuit.

4

Surge (IEC 61000-4-5)

±0.5 kV line-to-line and ±1 kV line-to-earth on mains ports. Simulates transient overvoltages from indirect lightning strikes and mains switching.

5

Conducted RF Immunity (IEC 61000-4-6)

3 V (r.m.s.) from 150 kHz to 80 MHz on power and signal ports. Simulates conducted RF disturbances induced onto cables from nearby intentional transmitters.

6

Voltage Dips and Interruptions (IEC 61000-4-11)

Voltage dips from 0% to 70% for defined durations. Tests the ability of mains-powered equipment to withstand brief supply disturbances without loss of function or unsafe behavior.

Standard VersionLocations Accredited
EN 55035 (2017) + A11 (2020)Lake Forest/Silverado, Brea, Newbury Park
EN 55035 (2017)Lake Forest/Silverado, Brea
CISPR 35 (2016)Lake Forest/Silverado, Brea, Newbury Park

Related Resources

CISPR 24 vs CISPR 35 — Comparison EN 55024 / CISPR 24 CISPR 32 / EN 55032 Testing EN 55032 / CISPR 32 Multimedia Equipment (MME) Guide ESD Immunity Testing Radiated Immunity Testing EFT/Burst Immunity Testing Surge Immunity Testing Conducted Immunity Testing ISO/IEC 17025 Accreditation Learning Center Home

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