This clause of Part 1 is applicable, except as follows: Replace the first paragraph by the following: This standard applies to residual current operated circuit-breakers with integral overcurrent protection (RCBO's) functionally independent of line voltage, for household and similar uses incorporating overcurrent protection having rated voltages not exceeding 440 V a.c. rated currents not exceeding 125 A and rated short-circuit capacities not exceeding 25 000 A, for operation at 50 Hz or 60 Hz.
Registration number (WIID)
44887
Scope
This clause of Part 1 is applicable, except as follows: Replace the first paragraph by the following: This standard applies to residual current operated circuit-breakers with integral overcurrent protection (RCBO's) functionally independent of line voltage, for household and similar uses incorporating overcurrent protection having rated voltages not exceeding 440 V a.c. rated currents not exceeding 125 A and rated short-circuit capacities not exceeding 25 000 A, for operation at 50 Hz or 60 Hz.
