Clause 3 – How to understand the definition of “rated voltage”

rated voltage:
voltage assigned to the appliance by the manufacturer.

Typically, this voltage is the standard utility voltage for the country of the target market at the time the product is designed. Once the target market has been determined, the manufacturer needs to design the product according to the requirements of the target market. It is not possible to design a product with a rated voltage of AC100V (supply input voltage) with the aim of using it in countries where the mains voltage is AC220V. At the same time, the mains voltage in most countries is a defined value, so the rated voltage value here is a separate value. The International Electrotechnical Commission provides a web page listing information on plugs and mains voltage for all countries:
https://iectest.iec.ch/world-plugs. FYI

In the IEC 60335-1 standard, all tests that require power to be supplied to the product or the product to be in operating condition is based on rated voltage. If the rated voltage is selected incorrectly, all tests need to be repeated. The laboratory needs to determine the rated voltage before performing the test.

IEC 60335-1 does not specify the value or the range of rated voltage at which the rated voltage should be set, but the range of rated voltages is actually given as a reference in the first paragraph of the clause 1, which is not to exceed 250 V for single-phase, and 480 V for three-phase and other power supply types of appliances. in general, the rated voltages will not exceed this range.
It is important to note that each country adds its own deviation based on the IEC 60335-1 standard, and that these deviation generally increase the rated voltage requirements. For example, 100V in Japan, 240V in the UK and 220V in China.

There is a decision PDSH 2235 for A class I battery charger is marked with a rated nature of supply 3N~ and a rated voltage of 400V.
Is this battery charger within the scope of IEC 60335-2-29:2016 with respect to the indicated rated voltage limit not more than 250 V?
Answered by decision: According to the scope of the standard, a battery charger with a rated voltage of 400V(3N~) is not covered by IEC 60335-2-29.