Unlike general-purpose breakers found in residential homes (which fall under IEC 60898), IEC 60947-2 covers . These devices handle higher fault currents, offer adjustable trip settings, and are tested for more rigorous conditions.
: The standard specifies various breaking capacities ( Icucap I sub c u end-sub iec 60947-2 pdf
You may find "IEC 60947-2 free PDF" on engineering forums or file-sharing sites. offer adjustable trip settings