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Special requirements for liquid heaters IEC 60335-2-15 updated

Time：

2025-09-17

The International Electrotechnical Commission has released the 7th edition of IEC 60335-2-15:2024, Safety of household and similar electrical appliances - Part 2: Special requirements for liquid heaters. Compared with the previous version, there are many key technical points that have been added, changed, and replaced.

In November 2024, the International Electrotechnical Commission released the 7th edition of IEC 60335-2-15:2024, Safety of household and similar electrical appliances - Part 2: Special requirements for liquid heaters.

Compared with the previous version, the newly released 7th edition of IEC 60335-2-15:2024 has added, changed, and replaced many key technical points. This time, only the technical points with significant changes were compared.

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The main technical additions and changes to this standard are as follows:

01. The standard version has been changed to be used in conjunction with the 6th edition of IEC 60335-1:2020, while clarifying that DC power supply appliances and battery powered appliances are also within the scope of this standard.

02. Added the definition of functional surface, which is a surface intentionally heated by an internal heat source and must maintain heat to ensure the expected functionality of the device.

03. Added hot surface identification (as shown in the figure below) and the scope of its use.

04. Added instruction manual requirements:

The equipment instructions for liquid containers made of polycarbonate materials that can be used by users should specify the following substances:

Note 1: To prevent damage to the equipment, do not use strong cleaning agents during cleaning. Please use a soft cloth and mild detergent.

Note 2: If the casing is damaged or has visible cracks, do not use this device.

05. New requirement for temperature rise test: If the externally accessible surface is sufficiently flat and easy to contact, use the test probe shown in Figure 101 to measure the temperature rise of the externally accessible surface specified in Table 101. The probe should be applied to the surface with a force of 4 N ± 1 N to ensure optimal contact between the probe and the surface. The measurement should be conducted after 30 seconds of contact.

06. Newly added appliances should be placed in the manner specified in Article 11.2 and operated under normal usage conditions at rated input power for the duration specified in Article 11.7.

07. Clarified the use of an aqueous solution containing approximately 1% sodium chloride for overflow testing of electric kettles. Added overflow test for embedded appliances. For coffee makers equipped with removable coffee containers (usually drip coffee machines), the funnel can be placed in place, but the coffee container does not need to be placed in place. Manually pour the overflow solution steadily into the funnel without the solution overflowing from the funnel. The amount of overflow solution is the maximum capacity of the appliance water tank. If the upper opening of the funnel is closed by the structure of the coffee machine, remove the funnel, inject its capacity of overflow solution, and then put it back into the coffee pot. Repeat this operation until the maximum capacity of solution is poured in. If there is an anti drip device in the funnel, the device will fail.

08. Added requirements for impact testing of glass containers for kettles, coffee makers, and teapots, as well as requirements for the strength of kettle handles.

09. Clarified the requirements for drainage holes: When determining whether they meet the requirements, openings that do not meet the specified size are considered blocked.

10. Added requirements for remote operation in clauses 22.49 and 22.51.

11. Clarified the testing method for the coupling of cordless appliances, which should be conducted in an unloaded state. The appliance should be placed on a bracket without significant external force and pulled out in a direction perpendicular to the bracket. During the entire testing process, the equipment should be placed and removed from the same position on the bracket, and should not be rotated.

12. Clarified the structure and testing requirements of the pressure cooker:

When the pressure inside the container is too high, the lid cannot be opened;

Unless the lid is locked tightly, there will be no pressure accumulation inside the container.

The appliance should have measures to ensure that the lid can only be opened when the pressure is released to a certain safe value.

13. The relevant requirements for the structure of the coffee machine have been added: the structure of the coffee machine should ensure that the foaming nozzle or hot water nozzle cannot rotate more than 45 degrees from a downward vertical position upward. To meet the standard, the following conditions need to be met:

The rotation direction is horizontal and towards the center of the machine. At this point, the maximum rotation angle can reach 75 °

When the foaming nozzle or hot water nozzle rotates upwards from a vertical downward position by more than 45 degrees, it will not be able to release steam or hot water. At this point, there is no limit to the rotation angle in any direction.

If this situation is controlled by electronic circuits, it is necessary to consider that after the failure of electronic circuit 19.11.2 and EMP, the product structure must meet the requirement of not spraying water or steam.

14. New structural requirements for appliances with multiple sets of motors and heating elements: For appliances controlled by programmable electronic circuits and limited to the number of heating elements and motors that can be powered simultaneously, any combination of heating elements and motors that can be started simultaneously must not cause the appliance to be unsafe.

Check its compliance through the following tests:

The fault/error conditions specified in Table R.1 shall be applied and evaluated in accordance with the relevant requirements of normative Appendix R; or

The appliance operates under the conditions of clause 11 under rated voltage supply, while modifying its programmable electronic circuit to allow all controlled heating elements and motors to start simultaneously. Under these conditions, compliance with clause 19.13 shall not be affected.

Friendly Reminder

At present, IEC 60335-2-15 has been updated with deviations from Japan and South Korea, and deviations from other countries such as Europe and Australia have not been synchronized with IEC 60335-2-15: 2024. Therefore, products that have been certified still need to be assessed according to the old version, 6th edition. If CB is issued and subsequent consideration is given to certificate transfer, two versions of assessment are required.

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