AS/NZS 60335.2.51:2012 Particular requirements for stationary circulating pumps used in safety heating and drinking water installations for household and similar appliances
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.
1970AS/NZS 60335.2.51:2012 Particular requirements for stationary circulating pumps used in safety heating and drinking water installations for household and similar appliances
1970AS/NZS 60335.2.51:2006 Household and similar electrical appliances - Safety - Particular requirements for stationary circulation pumps for heating and service water installations (IEC 60335-2-51 Ed 3, IDT)