AS/NZS 60335.2.51:2012 (IEC TEXT)
Household and similar electrical appliances - Safety - Particular requirements for stationary circulation pumps for heating and service water installations
This International Standard deals with the safety of electric stationary circulation pumps for household and similar purposes intended for use in heating systems or in service water systems, their rated voltage being not more than 250 V for single-phase appliances and 480 V for other appliances.