IEC 61010-1 - Safety for Measurement, Control and Lab Equipment
Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements
What the measurement categories mean
Key facts
- Full title
- Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements
- Published by
- IEC (TC 66)
- Current edition
- 3rd edition (2010) + Amendment 1 (2016), consolidated as IEC 61010-1:2010+AMD1:2016; Amendment 2 in draft (CDV 2025), expected around 2027
- Replaces
- 2nd edition (2001)
- Applies to
- Test & measurement, industrial process-control, and laboratory equipment
- Status
- Group safety publication under IEC Guide 104
Defined by function, not product category
What puts equipment under IEC 61010-1 is what it does - measure, test, monitor or control a physical or electrical variable - not the industry it sits in. A bench multimeter, a process controller and a lab centrifuge share the same baseline because they are all operated in technical settings, often by trained users, and frequently integrated into larger systems. Part 1 sets the common safety floor; particular parts (the 61010-2-xxx series) add requirements for specific equipment.
It addresses electric shock, fire, mechanical instability, thermal hazards and energy release, and describes the protective measures and construction expected to control them.
Measurement categories (CAT II to IV)
Instruments that connect to the mains to measure it are rated by measurement category - CAT II, III or IV - which mirrors the overvoltage categories and fixes how large a transient the input must survive. CAT II is for equipment connected at an outlet, CAT III for the fixed installation, CAT IV at the origin of the installation. In the 3rd edition the detailed measuring-circuit requirements moved into the particular standard IEC 61010-2-030.
These categories drive the same insulation-coordination logic - higher category means a higher impulse voltage and more clearance.
What the 3rd edition added
The 3rd edition widened the scope to all locations, professional and not, and added a risk-assessment route: Clause 17 for hazards not otherwise covered, plus annexes on reducing the pollution degree of a micro-environment, qualifying protective coatings, and determining the working voltage of a mains circuit - all of which feed directly into creepage and clearance design.
Tools that use this standard
Related standards
| Standard | Relationship | What it means |
|---|---|---|
| IEC 61010-2 series | Extended by | Part 2 standards add particular requirements for specific equipment, for example 61010-2-030 for circuits with measurement terminals. |
| IEC 62368-1 | Often confused with | Different scope: 61010-1 covers measurement, control and laboratory equipment; 62368-1 covers audio/video and IT equipment. |
| IEC 60664-1 | Relies on | Uses the 60664-1 insulation-coordination method for creepage and clearance. |
Source: IEC webstore. An overview for design reference - verify against the current edition before relying on it for compliance.