A charger and a power strip are not the same product in the eyes of a regulator. They are tested to different standards, listed under different scopes, and in several markets they clear customs through different paperwork.
If a supplier tells you "we have certification" without saying which standard covers which product, you do not have an answer yet. You have a sentence.
I have spent eight years shipping chargers and power strips out of China. This is the gap I see most often, and it is almost never malicious. It is just assumed.
The standards are different, not similar
Here is the part most buyers never get shown side by side.
| Product | International (IEC) | EU harmonised | United States |
|---|---|---|---|
| Charger / adapter (IT & AV class) | IEC 62368-1 | EN IEC 62368-1 | UL 62368-1 (or ETL — equivalent standing) |
| Power strip / socket-outlet | IEC 60884-1 | EN 60884-1 (+ EN 60884-2-x) | UL 1363 (relocatable power tap / strip assembly) |
| Plug & receptacle components | — | EN 60884 series | UL 498 |
| Travel adaptor / converter | — | EN 60884-2-5 | UL 498A |
| Cord set (plug + cable) | — | — | UL 817 |
| Surge protective device | IEC 61643-11 | EN 61643-11 | UL 1449 |
Two things to notice.
First, the charger line is about energy sources and shock protection inside an electronic device. The power strip line is about mechanical strength, contact retention, temperature rise and socket construction. They are different engineering questions.
Second, the US list is longer than most people expect. A strip is not one standard — it is a stack.
Why the standards split this way
It is not arbitrary. The two product families grew up in different technical committees.
Chargers came out of the IT and audio/video equipment world. The safety thinking is built around energy sources: how much energy can reach a user, and under what fault conditions. That lineage explains why 62368-1 is written the way it is.
Power strips came out of the household electrical accessories world. The safety thinking is built around construction: contact pressure, pin retention, heat under load, housing strength. That is the 60884 series.
Neither is stricter. They answer different questions. Once you see that, the paperwork stops feeling random.
Where the confusion starts
It usually begins with a product that does both.
A power strip with two USB-A ports and one USB-C port looks like one product. It has one housing, one cable, one box, one model number. So buyers assume one certificate.
Regulators do not assume that. They see:
- a socket-outlet assembly → assessed under UL 1363 (US) / EN 60884-1 (EU)
- a built-in power supply with USB output → assessed under UL 62368-1 (US) / EN IEC 62368-1 (EU)
- that power supply also brings efficiency rules into scope: DOE Level VI (US, 10 CFR 430) and ErP / (EU) 2019/1782 (EU)
- and the USB-C PD controller brings EMC into scope: FCC Part 15 Subpart B Class B (US), EN 55032 + EN 55035 (EU)
So the honest version of "one product" is: one bill of materials, four compliance workstreams.
That is not a reason to panic. It is a reason to scope the project properly at quotation stage instead of discovering it at the port.
The standards, market by market
European Union (CE route)
- Safety: EN IEC 62368-1 for the charger / USB output
- Sockets and plugs: EN 60884-1, supported by the relevant EN 60884-2-x part
- Travel adaptors: EN 60884-2-5
- Surge-protected models: EN 61643-11
- Plus EMC, RoHS, REACH, WEEE and EPR registration
- Voltage: 230 V / 50 Hz
- Plugs: CEE 7/7 (Type F Schuko / Type E); Italy CEI 23-50; Switzerland SEV 1011; Denmark has its own requirements
United Kingdom (UKCA route)
- BS EN IEC 62368-1 for the electronic side
- BS 1363 for plugs and socket-outlets — the fused plug is a legal requirement under the Plugs and Sockets (Safety) Regulations
- A non-conforming plug is seized at the border. There is no "fix it later" path.
United States
- Safety: UL or ETL from an NRTL. These carry the same standing — UL is not the only option, and this is the single most useful "myth-buster" in this whole topic.
- EMC: FCC Part 15 Subpart B, Class B. Wireless charging needs an FCC ID.
- Efficiency: DOE Level VI for external power supplies; California adds BC (Battery Charger Systems) registration.
- California Prop 65: warning label requirements.
- Voltage: 120 V / 60 Hz; plug Types A / B
The USB-C power strip problem
This deserves its own section, because it is where most budgets break.
A plain strip is a mechanical product. A USB-C strip is a mechanical product plus a charger plus an EMC-emitting device. Each layer adds test scope, and test scope is billed by the day.
What this means in practice:
- The mechanical side stays on the socket standard (UL 1363 / EN 60884-1)
- The USB output goes on 62368-1
- Efficiency testing applies where the market requires it
- Thermal behaviour matters more, because the USB board sits inside a sealed plastic housing that also carries mains current
A strip that passed as a plain product can fail once a USB board goes in. Same housing, same factory, different result.
What to ask before you pay the deposit:
- Which standard covers the socket side, and which covers the USB output?
- Is the model number on the certificate the model you are actually buying?
- Does the efficiency rating match the output rating on your label?
- Can I see a test report for the thermal test at full load?
What this looks like when it goes wrong
These are public recall notices, not hypotheticals.
Electrocution risk — metal housing not grounded. A Chinese seller recalled roughly 1,320 power strips sold through Amazon, eBay, Kmart and Sears between May 2024 and October 2025 at $35–56. The metal enclosure was not grounded. Remedy was a full refund.
Fire risk — no overcurrent protection. About 11,200 units of another brand, made in Hefei, were recalled in the US after seven reports of blown fuses. Sold on Amazon at $15–40.
Electric shock — no shutter on the socket. An extension lead notified through the EU Safety Gate failed both EN 60884-2 and the Low Voltage Directive because the socket openings had no protective shutter.
The pattern is boring, which is the point. None of these required exotic engineering. They required someone to confirm which standard applied to which part before production, not after.
Common mistakes buyers make
1. Assuming "CE certified" means a body issued a certificate.
In most cases CE is a self-declaration by the manufacturer. What a lab issues is a test report. The declaration is signed by you. If a supplier offers to "send the CE certificate", ask what is actually in the file.
2. Treating UL and ETL as different tiers.
They are not. Both come from NRTLs. Retailers accept either. Paying extra for one over the other is usually a branding choice, not a compliance one.
3. Forgetting the plug is its own compliance item.
In the UK, Brazil and several other markets, the plug is a legal requirement in its own right. Brazil uses Type N (NBR 14136), which exists nowhere else. A correct plug is a customs matter before it is a safety matter.
4. Reusing an old test report after a component change.
A different cord gauge, a cheaper capacitor, a new USB controller — any of these can invalidate the original assessment. This is the most common cause of a "we had a certificate" surprise at inspection.
5. Expecting certification to guarantee clearance.
It does not. Certification says a product meets requirements. It does not guarantee a specific shipment clears. Write it that way in your contracts.
FAQ
Do I need a separate certificate for a power strip and a charger?
In most markets, yes. They are assessed under different standards — 62368-1 for the charger, 60884-1 for the socket side. One test report rarely covers both.
Is a UL test report the same as a UL listing?
No. A test report says samples were tested to a standard. A listing includes factory inspection and ongoing surveillance, and only a listing lets you print the UL mark. Suppliers often quote one while meaning the other.
Can I use IEC 60950-1 test reports?
No. IEC 62368-1 replaced both 60950-1 (IT equipment) and 60065 (audio/video). Old reports are no longer accepted as the current standard in most markets.
What voltage should I design for?
Check your target market: EU 230 V / 50 Hz, US 120 V / 60 Hz, Japan 100 V at both 50 and 60 Hz, Brazil 127 V or 220 V depending on region.
How much time does a CB report save?
CB test reports can be used as a base for multiple national certifications, which typically shortens the process rather than eliminating it. Confirm current timelines with your lab for each target market.
Working on a charger or power strip project for a specific market?
I keep a one-page certification checklist by market — happy to send it over. Questions about a particular model are welcome in the comments.
Compiled November 2026. Standards and regulations change — always confirm against current official requirements for your market and product.
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