GB 16917.21-2008 Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBO) Part 21:Applicability of the general rules to RCBO functionally independent of line voltage
Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBO) Part 21:Applicability of the general rules to RCBO functionally independent of line voltage