Historical
AS/NZS 60335.2.40:2006
Household and similar electrical appliances - Safety - Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers (IEC 60335-2-40 Ed 4.2, IDT) (FOREIGN STANDARD)
This International Standard deals with the safety of electric heat pumps, including sanitary hot water heat pumps, air-conditioners, and dehumidifiers incorporating motor-compressors and hydronic room fan coils, their maximum rated voltages being not more than 250 V for single phase appliances and 600 V for all other appliances.
Standards Australia [sai]