CISPR 11-2024 PDF

Full title and description

St CISPR 11-2024 — Industrial, scientific and medical equipment — Radio-frequency disturbance characteristics — Limits and methods of measurement. Seventh edition (2024) of the CISPR 11 product-family standard specifying emission limits and measurement procedures for ISM and related equipment across a wide frequency range, including provisions for modern equipment types such as robots and devices that incorporate radio transmit/receive functions.

Abstract

CISPR 11:2024 defines radio‑frequency emission limits and detailed test methods for industrial, scientific and medical (ISM) electrical equipment and similar appliances that generate or use local RF energy. The standard covers emission requirements in the 9 kHz to 400 GHz range (with ISM RF applications addressed to 9 kHz–18 GHz per ITU definitions), introduces radiated limits above 1 GHz for Group 1 equipment, adds conducted‑on‑network‑port limits, and includes measurement and in‑situ testing guidance for equipment classes including robots and host equipment with integrated radio functions. This edition cancels and replaces the sixth edition (2015) and its amendments and constitutes a technical revision.

General information

• Status: Current (seventh edition, technical revision).
• Publication date: 13 February 2024.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 33.100.10 — Electromagnetic compatibility (EMC).
• Edition / version: Edition 7.0 (2024).
• Number of pages: 194.

Scope

This standard applies to industrial, scientific and medical electrical equipment operating in the frequency range 0 Hz to 400 GHz and to domestic and similar appliances designed to locally generate and/or use radio‑frequency energy. It specifies emission requirements related to radio‑frequency disturbances in the frequency range 9 kHz to 400 GHz, and — for ISM RF applications as defined in the ITU Radio Regulations — in the range 9 kHz to 18 GHz. The standard excludes intentional radio transmissions (as defined by the ITU) while covering combination emissions and host equipment that integrates radio transmit/receive functions. Equipment already covered by other CISPR product or family emission standards is excluded from CISPR 11's scope.

Key topics and requirements

• Frequency coverage and limits: Emission limits specified from 9 kHz up to 400 GHz, with ISM RF application specifics to 18 GHz and new radiated limits above 1 GHz for Group 1 equipment.
• Equipment classification: Definitions and requirements for Group 1 (non‑ISM or equipment not classified as Group 2) and Group 2 (ISM devices using RF energy locally), plus Class A / Class B usage designations.
• Conducted and radiated measurements: Detailed measurement methods for conducted emissions (mains and other ports, including wired network ports) and radiated emissions with test‑site and in‑situ procedures.
• Measurement setups and instrumentation: Requirements for measuring instruments, artificial networks, probes, antennas, calibration and ambient noise assessment.
• Special provisions: Measurement and operating‑mode guidance for robots, grid‑connected power converters, medical and industrial loads, ISM lighting, electric welding and other specific equipment types.
• Host equipment with radio functions: Rules for equipment that incorporate radio transmit/receive functionality, clarifying exclusion of intentional transmitter emissions while addressing intermodulation and combination emissions.
• Compliance and documentation: Test reporting, configuration, load conditions and marking/technical file information required to demonstrate conformity.

Typical use and users

Manufacturers and designers of ISM equipment (e.g., microwave processing, induction heating, industrial lasers, welding equipment), test laboratories performing EMC compliance testing, conformity assessment bodies, regulatory authorities and procurement/specification engineers use CISPR 11 to define emission limits, design verification tests and compliance evidence. It is also used by certification bodies and safety/EMC engineers working on products that combine ISM functions with other electronics (including robots and host equipment with embedded radios).

Related standards

Commonly referenced complementary and related documents include CISPR 16 series (measurement methods and instrumentation), CISPR 32 (multimedia equipment), CISPR 14‑1 / CISPR 14‑2 (household appliance emission requirements), CISPR 13 (broadcast receivers), IEC 61000 series (generic EMC immunity and emission standards, e.g., IEC 61000‑4‑x test methods and IEC 61000‑6 family), and product‑specific standards such as IEC 60601‑1‑2 for medical electrical equipment. National/adopted variants (EN, AS/NZS, etc.) commonly modify or adopt CISPR 11 text for regional regulatory use.

Keywords

CISPR 11, ISM equipment, EMC, electromagnetic compatibility, radiated emissions, conducted emissions, Group 1, Group 2, Class A, Class B, robots, measurement methods, in‑situ testing, RF disturbance limits.

FAQ

Q: What is this standard?

A: CISPR 11:2024 is the international product‑family standard that specifies radio‑frequency emission limits and measurement methods for industrial, scientific and medical (ISM) electrical equipment and similar appliances.

Q: What does it cover?

A: It covers emission requirements (conducted and radiated) in the 9 kHz–400 GHz range (with ISM RF applications treated specifically to 9 kHz–18 GHz), test methods, equipment classification (Group 1/Group 2 and Class A/B), measurement setups, and special provisions for devices such as robots and equipment with integrated radio functions.

Q: Who typically uses it?

A: Product designers and manufacturers of ISM and related equipment, EMC test laboratories, conformity assessment bodies, certification and regulatory agencies, and EMC engineers involved in product compliance and testing.

Q: Is it current or superseded?

A: CISPR 11:2024 is the current (seventh) edition, published 13 February 2024. It cancels and replaces the 2015 sixth edition and its subsequent amendments, and constitutes a technical revision.

Q: Is it part of a series?

A: Yes. CISPR 11 is a CISPR product‑family standard and is commonly used alongside the CISPR 16 measurement series and other CISPR product standards (for example CISPR 14, CISPR 32) and the IEC 61000 family of EMC standards for immunity and generic emission requirements.

Q: What are the key keywords?

A: ISM equipment, EMC, radiated emissions, conducted emissions, Group 1, Group 2, Class A, Class B, robots, measurement methods, in‑situ testing.