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  • BSI
    BS EN IEC 61921:2025 - TC Tracked Changes. Power capacitors. Low-voltage power factor correction banks
    Edition: 2025
    $567.87
    / user per year

Description of BS EN IEC 61921:2025 - TC 2025

NEW!IEC 61921:2017 is available as IEC 61921:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 61921:2017 is applicable to low-voltage AC shunt capacitor banks intended to be used for power factor correction purposes, possibly equipped with a built-in switchgear and controlgear apparatus capable of connecting to or disconnecting from the mains part(s) of the bank with the aim to correct its power factor.  Low-voltage power factor correction banks if not otherwise indicated hereinafter and where applicable comply with the requirements of IEC 61439-1 and IEC 61439-2.  This second edition cancels and replaces the first edition published in 2003. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: numerous changes regarding verification methods to align with IEC 61439-1; modification of marking; add routine verification of rated output; new Annex D with guidance on methods for temperature rise verification; update of normative references; general editorial review. Keywords: low-voltage AC shunt capacitor banks

Standard NumberBS EN IEC 61921:2025 - TC
TitleTracked Changes. Power capacitors. Low-voltage power factor correction banks
StatusDefinitive
Publication Date2025-09-12
DescriptorsCompatibility, Switchgear, Electrical components, Control equipment, Capacitors, Capacitor banks, Electromagnetic compatibility, Electric control equipment, Environment (working), Design, Electrical safety, Marking, Installation, Electrical equipment, Power factor, Rated voltage, Low-voltage equipment
ICS31.060.70 Power capacitors
CommitteeW/-
ISBN978 0 539 38821 3
PublisherBSI
Pages69



About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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