Dashboard Log out

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: List of articles with Current limiter

Why was the 250VA limit under G.9 removed in IEC 62368-1 Edition 3, and when applying IEC 62368-1 Edition 3, why does it reference IEC 62368-3, when IEC 62368-3 itself refers to IEC 62368-1 Edition 2?

IC Current Limiter G.9 250VA IEC 62368-3

Does IEC 62368-1 2nd Ed or 3rd Ed require an additional external fuse to be added to an already certified Annex CC current limiter in PoE Circuits?

Annex CC Current Limiter PoE

Does the "any two leads" short exemption in B.4.1 apply to all pins on the current limiter IC complying with Annex G.9 or is only the requirement for shorting input to output waived as is implied in G.9.1?

IC current limiter short-circuit open circuit

Can a battery charger be qualified as an IC current limiter under clause G.9?

Battery Charger Current limiter Integrated Circuit (IC)G.9