Get the hard facts to successful 62368 compliance – from your UL experts

The IEC 62368-1 Knowledge Hub covers an exceptionally wide range of topics, which we believe can be helpful to manufacturers and distributors of A/V & ICT equipment.

This Q&A includes many of the questions we have been asked, with answers from UL experts. Registered users may also submit additional questions related to the 62368: UL has the answer.

Q&A: You ask, we answer

Does the point B.2.6.2 in EN 62368 force to perform temperature measurement for Cause 6 at real Trma (manufactures max allowed ambient temperature of the DUT)?

62368-1 B.2.6.2

What's the definition for "Pulse" in IEC62368-1?

62368-1

Why evaluate to Edition No. 2 of IEC 62368-1 now, when we will have to test to Edition No. 3 by 2020?

62368-1 Edition 3 62368-1

Evaluations to 3^rdEdition will not universally be required in 2020. Edition No. 3 of IEC 62368-1 will not become mandatory until it is adopted in Europe,…

How much actual new testing will be required to move from product investigations currently to IEC 60950-1 to IEC 62368-1?

IEC 60950-1 62368-1

Unfortunately, this sort of question cannot be addressed in depth in this sort of forum since the answer is mostly dependent on the specific product type (construction,…

Given that the 2nd edition is more onerous, what is the likelihood of an agency such as UL allowing a 3rd edition relaxation in their 2nd edition certification?

623 Edition No. 3 of IEC 62368-1 IECEE CB Scheme

It’s an oversimplification to state that Ed 2 is more onerous than Ed 3. A better way to view it is that Ed 3 has incorporated some refinements into it that…

For IEC 62368-1’s Annex G.9 on IC current limiters, one of the stated conditions is that the IC is supplied by a source whose output does not exceed 250VA. Can you provide some background on this change?

62368-1

Annex G.9 is being overhauled in Edition No. 3 of IEC 62368-1, including a new test program replacing the existing three test programs. A 250VA power source…

What is status with Mexico adopting 62368-1?

62368-1

Currently, there is no Mexican National Standard or adoption of IEC 62368-1, 2^ndEd.

Is there a list of targeted dates for countries like Korea and Japan as to when they will not just have published 62368-1 standards but will also permit products to be approved to those standards?

KATS 62368-1

For Korea – KS C IEC 62368-1 2^ndEd. seems to be on track for a Q1 2019 publication. Korean Agency for Technology…

Clause 9’s Table 38 for Touch Temperature Limits states the limits are based on a 25 deg C ambient. How are the Tmax limits in Table 38 adjusted for different ambient temperatures?

Clause 9’s Table 38 for Touch Temperature Limits states the limits are based on a 25 deg. C ambient and to adjust for different ambient temperatures if not 25…

Can the critical components of my product still be certified under 60950-1 even if my final product is certified under 62368-1?

You asked whether the critical components of your product still be certified under 60950-1 and if there be a time when all components need 62368-1 certification?

Please…

I understand that AV/ICT products with rechargeable batteries have significant changes in requirements associated with 62368-1 compared to 60950-1 or 60065. Can you expand on this?

62368-1 EN 60065 IEC 60950-1

The answer to this question requires a detailed discussion of Annex M of IEC 62368-1 with your local UL representative, including both its references to component…

Can existing products with 60065 or 60950 certificates be sold in Europe after 2020?

EN 60065 EN 60950

If you are using Harmonized Standards to show presumption of conformity then you would need to apply EN 62368-1: 2014 when placing products on the market after…

What are the main differences between the 2nd and 3rd Editions of IEC 62368-1?

6 62368-1 Edition 3

The Foreword to Edition No. 3 includes the following information, which is a good introduction to the topic of differences from Ed 3 and Ed 2: “This edition includes…