Back to Standards
IECProtectionInternational
IEC 60947-2
Low-voltage switchgear and controlgear — Circuit-breakers
Industrial circuit-breakers (MCCB and ACB): ultimate and service short-circuit breaking capacities Icu / Ics, short-time withstand and utilization categories.
What it covers
- Icu and Ics breaking capacities
- Short-time withstand current Icw
- Utilization categories A and B
Used in ElecCalcPro
Related standards
This page summarises the document; it does not reproduce it. Obtain the current edition from the publisher for design and compliance work.