BS EN IEC 60688-2024 PDF

Full title and description

STB BS EN IEC 60688-2024 — Electrical measuring transducers for converting A.C. and D.C. electrical quantities to analogue or digital signals. This British (BS) adoption of the EN/IEC publication specifies terminology, definitions, test methods, performance and accuracy limits, environmental and marking requirements for transducers that convert electrical quantities (current, voltage, power, frequency, harmonics, etc.) into analogue or digital outputs.

Abstract

This standard defines the functional and metrological requirements, common test procedures and accuracy classes for electrical measuring transducers used in industrial and utility applications. It covers outputs in the form of analogue current/voltage or digital signals, required environmental/test conditions, limits on measurement errors and the general requirements for marking and documentation. It does not apply to instrument transformers complying with the dedicated transformer series or to some process transmitters and PMD devices covered under other IEC standards.

General information

• Status: Current (active national adoption of the EN/IEC 2024 publication).
• Publication date: IEC base publication: 30 August 2024; BS EN IEC adoption (BS publication) late December 2024 (BSI listing shows the BS/EN adoption in December 2024).
• Publisher: BSI (as BS EN IEC) — identical text to EN 60688 / IEC 60688:2024.
• ICS / categories: 17.220.20 — Measurement of electrical and magnetic quantities.
• Edition / version: European edition (EN) referenced as Ed. 5.0 for EN 60688; international edition IEC 60688:2024.
• Number of pages: Approximately 132 pages (BS/EN edition PDF listings indicate ~132 pages).

Scope

Applies to electrical measuring transducers with electrical inputs and analogue or digital electrical outputs used to measure A.C. and D.C. quantities (for example: current, voltage, active/reactive/apparent power, power factor, phase angle, frequency, harmonics, total harmonic distortion). The standard specifies terminology, test methods for evaluating performance, accuracy limits, environmental/test conditions, and requirements for marking and documentation. Exclusions include instrument transformers complying with the IEC/EN transformer series and certain transmitters or performance-monitoring devices covered by other IEC standards.

Key topics and requirements

• Terminology and definitions for measuring transducers, inputs and outputs.
• Standardized test methods for accuracy, linearity, temperature influence, frequency response and stability.
• Performance and accuracy classes (permitted errors, classes and limits for different quantities and outputs).
• Output formats: analogue DC current/voltage outputs and digital communications — requirements for compatibility and signalling.
• Environmental and mechanical requirements: operating/storage temperatures, vibration, humidity and transient immunity test conditions.
• Marking, documentation and information to be supplied with the device (accuracy, rated input/output, operating limits).
• Exclusions and cross-references to related IEC standards (instrument transformers, process transmitters, PMD devices).

Typical use and users

Used by manufacturers of electrical measuring transducers, test laboratories, utilities, industrial automation and protection engineers, metrology/calibration laboratories, and procurement/specification teams who require standardized performance and test requirements for devices that convert electrical quantities to analogue or digital signals. The standard supports product design, type testing, acceptance testing and conformity assessment.

Related standards

Commonly referenced standards and families include: IEC/EN standards for instrument transformers and related measurement equipment (historically the IEC 60044 series and its successors), IEC 60770 series (transmitters for industrial process applications), IEC 61557-12 (performance measuring and monitoring devices), plus other EN/IEC publications covering EMC, low-voltage directives and product-specific test methods. Users should check the normative references in the standard for the full related-standards list.

Keywords

Electrical measuring transducers, transducers, analogue output, digital output, measurement accuracy, test methods, current transducer, voltage transducer, power transducer, frequency, harmonics, IEC 60688, EN 60688, BS EN IEC 60688.

FAQ

Q: What is this standard?

A: It is the BS EN IEC adoption of IEC 60688:2024, titled "Electrical measuring transducers for converting A.C. and D.C. electrical quantities to analogue or digital signals" — a standard that defines terminology, tests and performance requirements for electrical measuring transducers.

Q: What does it cover?

A: It covers transducers that convert electrical inputs (AC and DC) to analogue (DC current or voltage) or digital outputs, specifying definitions, test procedures, accuracy limits, environmental/test conditions, marking and exclusions for devices already covered by other IEC series.

Q: Who typically uses it?

A: Manufacturers, test and calibration laboratories, utility and industrial engineers, product designers, procurement/specification teams and conformity assessors working with measurement and monitoring equipment.

Q: Is it current or superseded?

A: The 2024 publication supersedes the previous edition (IEC 60688:2012) and is the current edition for IEC/EN/BS adoption as of 2024. Users replacing or updating specifications should reference the 2024 text.

Q: Is it part of a series?

A: Yes — IEC 60688 is part of the family of IEC standards addressing measurement of electrical and magnetic quantities and is published alongside related IEC/EN standards (instrument transformer series, transmitters and performance-monitoring device standards). The EN adoption (BS EN IEC 60688) is identical text for national use.

Q: What are the key keywords?

A: Transducers, measuring transducers, analogue output, digital output, accuracy classes, test methods, current, voltage, power, frequency, harmonics, IEC 60688, EN 60688, BS EN IEC 60688.