IEC 60335-2-40 deals with the safety of electric heat pumps. Appliances like sanitary hot water heat pumps, air conditioners, and dehumidifiers are included. They incorporate motor compressors and hydronic fan coil units. The maximum rated voltage for single-phase appliances is 250 V, for all other appliances it is 600 V.
The main text and the consolidated version which consists of the main text and the amendment can be found in the standard’s history. In this amendment, you can find changes to some of the clauses in the main text. EN IEC 60335-2-40:2023/A11:2023 modifies the European standard EN IEC 60335-2-40:2023.