Reference
DateToSubject: CPSO-070923-11: 07 Sep 2023
: Registered Suppliers and Conformity Assessment Bodies: Certification requirements under IEC 62368-1 for AC adaptors that candeliver more than 100W of power to connected equipment

Dear Registered Suppliers (RSes) and Conformity Assessment Bodies (CABs),
1. AC adaptors, including those that can deliver >100W to connected equipment,
are classified as Controlled Goods under the Consumer Protection (SafetyRequirements) Regulations (CPSR), and are required to comply with relevant safety
standards such as IEC 62368-1.
2.
This circular seeks to provide clarity on the testing and certification
requirements for AC adaptors which can deliver more than 100W of power (>100W),
under IEC 62368-1.
A. Requirements for AC adaptors tested to IEC 62368-1 editions 3.0 andearlier (i.e., IEC 62368-1:2018 and earlier)a. Clause 6.6. of IEC 62368-1 (Ed. 3.0 and earlier) only allows for AC adaptors
that can deliver >100W to a connected equipment if the connected equipment
also complies with IEC 62368-1.
b. To fulfill clause 6.6, suppliers of AC adaptors that can deliver >100W shallprovide assurance that their AC adaptor will only be used with connected
equipment that are also compliant to IEC 62368-1, using one or more of thefollowing methods:i.

Incorporating handshaking methods such as Extended Power Range(EPR) capability into the AC adaptor and intended connected
equipment(s). This will ensure the AC adaptor will only output >100W
when supplying power to the intended connected equipment; orii.

it can only beconnected to intended equipment; oriii.

Additional instructional safeguards on the AC adaptor, such as thefollowing text: This AC adaptor can output more than 100W. Please
monitor the adaptor while charging.

iv.

Ensure that the AC adaptor is not supplied as a standalone item, andonly sold when bundled together with the specific model and/or brand

The Consumer Product Safety Office (CPSO) safeguards consumer safety by ensuring consumer products supplied in Singapore are safe for use and comply
with applicable safety standards. The CPSO is an office under Enterprise Singapore.
Visit www.consumerproductsafety.gov.sg for more information.

of connected equipment compliant with IEC 62368-1;
choosing
this approach will need to submit a declaration letter on company
letterhead, containing the following information:
Declaration that the AC adaptor will not be supplied as a standalone
item
Information on connected equipment the AC adaptor will be bundledwithc. Suppliers may propose alternate methods to provide assurance that their ACadaptor will comply with IEC 62368-1 edition 3 and earlier. The CPSO willassess such proposals on a case-by-case basis.
B. Requirements for AC adaptors tested to IEC 62368-1 edition 4.0 (i.e., IEC62368-1:2023)
a. Clause 6.6. of IEC 62368-1 (Ed. 4.0) allows for AC adaptors that candeliver >100W to a connected equipment if power is not delivered via acommunication port.
b. AC adaptors that can deliver >100W to a connected equipment are unlikely todeliver power via a communication port. Hence, most AC adaptors which
delivers >100W to a connected equipment will fully comply with IEC 62368-1(Ed. 4.0) without needing further requirements.
3.
All AC adaptors that can deliver >100W to connected equipment which havebeen registered prior to this circular will need to comply with the requirements specifiedin part A or B during their CoC renewal.
4.
Please refer to the appended Frequently Asked Questions for any questions
that you may have. If your question is not answered there, please contact the CPSO
at consumerproductsafety@enterprisesg.gov.sg
Issued by:
The Consumer Product Safety OfficeThis is a computer-generated circular and no signature is required.

The Consumer Product Safety Office (CPSO) safeguards consumer safety by ensuring consumer products supplied in Singapore are safe for use and complywith applicable safety standards. The CPSO is an office under Enterprise Singapore.
Visit www.consumerproductsafety.gov.sg for more information.

Frequently Asked Questions for Circular CPSO-070923-11
Q.

Does this regulatory update only affect AC adaptors certified to IEC 62368-1?

A.
Yes. This update seeks to clarify on the requirements related to IEC 62368-1
and does not apply to other standards.
Q.

Will this regulatory update affect AC adaptors with rated output below 100W?

A.
No actions need to be taken for AC adaptors that can only deliver below 100Wto connected equipment.

Q.

Does the regulatory update affect all AC adaptors with rated output over 100W?

A.
No. The additional requirements only apply to AC adaptors that deliver >100W
to individual connected equipment. AC adaptors with power rating over 100W whichhave their output power split across multiple connectors/ports, resulting in <100W
power delivered at each connector/port, will not be affected.

Q.
If the AC adaptors delivering >100W to connected equipment is compliant toclause 6.6 of IEC 62368-1:2023 but does not have the full IEC 62368-1:2023 test
report is it possible to combine clause 6.6 of IEC 62368-1:2023 with an earlier versionof the IEC 62368-1 report?
A.

No. The complete safety standard must be applied to the product.

Q.
Are there any avenues for Registered Suppliers to feedback to CPSO regarding
this regulatory decision?
A.
Please write in to CPSO and furnish us with the details. Any such
feedback/appeal will be evaluated on a case-by-case basis.

The Consumer Product Safety Office (CPSO) safeguards consumer safety by ensuring consumer products supplied in Singapore are safe for use and comply
with applicable safety standards. The CPSO is an office under Enterprise Singapore.
Visit www.consumerproductsafety.gov.sg for more information.