Share by email

IEC 60034-11

IEC 60034-11:2020
Rotating electrical machines - Part 11: Thermal protection
IEC 60034-11:2020 is available as IEC 60034-11:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60034-11:2020 specifies requirements relating to the use of thermal protectors and thermal detectors incorporated into the stator windings or placed in other suitable positions in induction machines in order to protect them against serious damage due to thermal overloads. It applies to single-speed three-phase 50 Hz or 60 Hz cage induction motors in accordance with IEC 60034-1 and IEC 60034-12 that:
- have a rated voltage up to 1 000 V;
- are intended for direct-on-line or star-delta starting.
The main changes with respect to the previous edition are:
- the additional specification of winding temperature limits for temperature class 200 (N),
- the increased limits of maximum winding temperatures for overloads with rapid variation,
- the clarification that the motor winding may be permanently damaged after it has been exposed to temperatures
- a clarification of the definition of indirect thermal protection,
- a clarification on the test methods for larger motors.
BASE PUBLICATION
English/French
Redline version

All the changes between the new edition and previous edition of the publication are highlighted with track changes mode.

Discover

Technical committee

TC 2 Rotating machinery
Publication typeInternational Standard
Publication date2020-10-05
Edition3.0
ICS

29.160.01

Stability date2028
ISBN number9782832288443
Pages25
File size1.10 MB
EditionDatePublicationEditionStatus
  • Ensure inclusive and equitable quality education

  • Achieve gender equality and empower all women and girls

  • Ensure availability and sustainable management of water and sanitation for all

  • Ensure access to affordable, reliable, sustainable and modern energy for all

  • Promote inclusive and sustainable economic growth, full and productive employment and decent work for all

  • Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation

  • Reduce inequality within and among countries

  • Make cities and human settlements inclusive, safe, resilient and sustainable

  • Ensure sustainable consumption and production patterns

  • Take urgent action to combat climate change and its impacts

  • Conserve and sustainably use ocean, sea and marine resources

  • Promote sustainable use of terrestrial ecosystems, halt and reverse land degradation and biodiversity loss

  • Promote peaceful and inclusive societies for sustainable development, provide access to justice for all and build effective, accountable institutions at all levels

  • Strengthen the means of implementation and revitalize the global partnership for sustainable development

See more

Related publications