You need to make sure each ITE external power supply follows IEC 62368-1 rules before you say yes. Ask suppliers for a real CB certificate, full test reports, and a model number you can track. Check that adapters for information technology equipment have clear labels, safety datasheets, and a list of important parts. Use this checklist to show how you follow IEC 62368-1 with proof you can check and match to your order.
Ask for yes or no answers for every document.
Do not accept any shipment without proof or tracking.
Key Takeaways
Always ask suppliers for a CB certificate and test reports. This helps you know if the product follows IEC 62368-1 rules.
Check if the product is an external power supply. Look at its details and compare them to IEC 62368-1 rules.
Gather all needed papers, like the Declaration of Conformity. This shows the product meets safety rules.
Carefully check labels, output voltage, and lot codes. Make sure every product is safe and follows the rules.
Set aside any shipment that does not pass safety checks. Also, set aside shipments missing important papers. This keeps your supply chain safe.
What IEC 62368-1 Covers for ITE External Power Supplies
Scope check: is your product an “external power supply” under ITE use?
You need to check if your product is an external power supply for information technology equipment under iec 62368-1. Ask yourself these questions: – Does the unit change AC or DC power into DC power for IT, AV, or office equipment? – Is the power supply not inside the main device and connects with a cord or plug? – Does the product have a cord that can be removed or is fixed in place? If you say “yes” to all, your product is covered by iec 62368-1. If you say “no” to any, look at the exclusions below.
Covered ratings and configurations (AC input, DC output, detachable cords, adapters)
Make sure your supplier’s product ratings fit the iec 62368-1 rules. Use this table to check the input and output limits:
Input Type | Minimum Rating | Maximum Rating |
|---|---|---|
AC | 85VAC | 264VAC |
DC | 90VDC | 370VDC |
Check that the adapter only uses setups allowed by the standards. Look for cords that can be removed, plugs that can be changed, and the right output voltage.
Hazard-Based Safety Engineering (HBSE) essentials procurement should understand
You need to know about hazard-based safety engineering for iec 62368-1. Go over these main ideas with your supplier:
Key Principle | Description |
|---|---|
Classifying energy sources | Find and sort energy sources early in the design. |
Anticipating misuse | Think about how people might use the product wrong. |
Proving safeguards early | Check safety steps at the start of the design. |
Mapping energy sources | Make a map of energy sources to check safety steps. |
Refreshing supplier evidence | Update supplier papers to match the latest standards. |
Aligning test plans | Make sure test plans follow the newest rules. |
Maintaining compliance matrix | Keep a list of rules for each region. |
Ask for proof that your supplier uses these safety steps in their design and testing.
Exclusions and edge cases to confirm early (internal PSU, battery chargers, special applications)
Look for things that are not covered before you go on. iec 62368-1 does not cover: – Power supplies built inside the main device – Battery chargers that are not used as external adapters – Special uses outside IT, AV, or office equipment If your product is one of these, do not use iec 62368-1. Always check the right rules and needs for your supplies.
Tip: Always ask your supplier for clear papers to show the product fits the iec 62368-1 rules and safety standards.
Supplier Compliance Evidence You Must Collect (Document Pack)
You need to get a full set of documents from your supplier. This helps you check IEC 62368-1 rules for each ITE external power supply. Use the checklist to make sure you have everything. Ask for proof you can track. Never accept a shipment without these papers.
CB certificate and CB report verification
Check the CB certificate and CB report for every order. These show your supplier follows IEC 62368-1 safety rules.
Issuing body (NCB/CBTL), report number, standard edition, and validity dates
Ask your supplier:
Who gave the CB certificate? (NCB/CBTL name)
What is the report number?
Which edition of IEC 62368-1 does it use?
What are the start and end dates?
Pass: All answers match your request and are up to date.
Fail: Any answer is missing, old, or does not match your order.
Matching model name, output ratings, and variants to your RFQ part number
Make sure the model name, output ratings, and all versions in the CB report match your RFQ part number.
Ask your supplier for a table that shows this match.
Pass: Every detail matches your order.
Fail: Any mismatch or missing version.
National differences / deviations / conditions of acceptability to review
Look at the CB report for country differences, changes, or special rules.
Ask: Are there any rules for certain countries?
Pass: Supplier lists all differences and says your product meets U.S. rules.
Fail: Any missing or unclear information.
Test report authenticity and lab credibility
You must check that the test report is real and the lab follows IEC safety testing rules.
Lab accreditation and traceable calibration references
Ask for the lab’s certificate and calibration records.
Make sure the lab is approved for IEC 62368-1 testing.
Pass: Lab is approved and calibration can be tracked.
Fail: No approval or missing calibration records.
Evidence that the tested sample equals the shipped configuration (revision control)
Ask for photos or a label from the tested unit.
Check that the tested sample matches what is shipped, including version and model.
Pass: Tested and shipped units are the same.
Fail: Any difference in version, model, or setup.
Declaration of Conformity (DoC) and supplier declarations
You need a Declaration of Conformity for every shipment. This paper proves the supplier says the product meets IEC 62368-1.
DoC scope, responsible party, and market claims consistency
Ask for the DoC and check:
Does it cover your product?
Who is in charge?
Are market claims (U.S., EU, etc.) the same as the CB report?
Pass: All details are clear and match the CB report.
Fail: Any missing or different information.
Factory address/site consistency and manufacturing site identification
Check that the factory address on the DoC matches the site in the CB report.
Ask for a list of all factory sites.
Pass: All addresses and sites match.
Fail: Any mismatch or unknown site.
Critical components and traceability evidence
You must control all safety critical parts to meet IEC 62368-1 rules.
Safety critical components list (fuse, transformer, optocoupler, Y-cap, insulation system)
Ask for a list of all safety critical parts in the power supply.
The list must include fuse, transformer, optocoupler, Y-cap, and insulation system.
Pass: List is complete and matches the CB report.
Fail: Any missing or extra part.
Component approvals, safety datasheets, and approved substitutes list (if any)
Ask for approvals and safety datasheets for each critical part.
If substitutes are allowed, ask for a list of approved substitutes.
Pass: All papers are present and can be tracked.
Fail: Any missing approval, datasheet, or unapproved substitute.
Tip: Always keep a copy of every paper for your records. Missing or unclear proof can cause problems and may stop your shipment.
Checklist Table Example:
Requirement | Pass/Fail | Notes/Document Reference |
|---|---|---|
CB Certificate (NCB/CBTL, Edition, Dates) | ||
Model/Rating Match to RFQ | ||
National Differences Reviewed | ||
Lab Accreditation & Calibration | ||
Tested Sample = Shipped Unit | ||
DoC Scope & Responsible Party | ||
Factory/Site Consistency | ||
Critical Components List | ||
Component Approvals & Datasheets | ||
Approved Substitutes List (if any) |
You must finish this checklist for every order. This helps you follow IEC 62368-1 and lowers risk.
62368-1 Safety Requirements Procurement Should Spot-Check
Dielectric strength / insulation system evidence (hipot references and insulation class)
You need to check if each power supply is safe. The power supply must pass the dielectric strength test in IEC 62368-1. Ask your supplier for test records that show the insulation system works at the right voltage. Use this table to compare the voltage standards:
Insulation Type | 60950-1 Voltage (Vrms/Vdc) | 62368-1 Voltage (Vdc) |
|---|---|---|
Basic Insulation | 1500Vrms / 2121Vdc | 2500Vdc |
Reinforced Insulation | 3000Vrms / 4242Vdc | 4000Vdc |
Power Supply (480Vac) | 3060Vdc | 4000Vdc |
Reinforced Insulation | 4242Vdc | 6000Vdc |
Ask: Does the test report show the right voltage for the insulation type?
Pass: Test results are the same or higher than 62368-1 values.
Fail: Any result is lower than the needed voltage.
Energy source controls and safeguards (ES classification, protective measures)
You must check if the supplier knows the energy source class. The supplier should use the right safety steps. IEC 62368-1 uses hazard-based safety engineering to keep people safe. Look at the energy source class and see if there are safety steps.
Energy Source Class | Effect on the Body | Effect on combustible material |
|---|---|---|
Class 1 | You can feel it, but it does not hurt | Not likely to start a fire |
Class 2 | It hurts, but does not injure you | Fire could start, but not fast |
Class 3 | It can injure you | Fire can start and spread quickly |
Ask: What is the energy source class? What safety steps are used?
Pass: Supplier gives the class and shows tested safety steps.
Fail: Class is missing or safety steps are not clear.
Capacitor discharge and stored energy handling evidence
Check if the supplier controls the energy in capacitors. IEC 62368-1 says voltage must drop to safe levels after power is off.
Regulation | Voltage Decay Requirement | Time Frame | Condition |
|---|---|---|---|
IEC 60950-1 | < 42.4Vpk | 1 second | Normal |
IEC 62368-1 | < 60Vpk | 2 seconds | Normal |
IEC 62368-1 | < 120Vpk | 2 seconds | Single Fault |
Ask: Does the test report show voltage drops below 60Vpk in 2 seconds (normal) and 120Vpk (single fault)?
Pass: All results meet IEC 62368-1 rules.
Fail: Any result is too high or data is missing.
Markings, labels, and instructions (ratings, warnings, model ID, traceability marks)
You need to look at every label and instruction. Check for clear ratings, warnings, model numbers, and traceability marks. These markings show the product follows IEC safety rules.
Ask: Are all labels easy to read and complete? Do they match the CB report and DoC?
Pass: All markings are there and correct.
Fail: Any label is missing, wrong, or hard to read.
Enclosure and flammability / mechanical safeguards (as applicable to the design)
Check if the enclosure meets IEC 62368-1 safety rules. The enclosure must keep users safe from danger and pass flammability tests.
Ask: Does the enclosure pass flammability and strength tests?
Pass: Supplier gives test results and material papers.
Fail: Test data is missing or materials do not pass.
Tip: Always ask for a list of safety critical parts. Only allow changes if the supplier agrees and gives new test reports. Keep records for every shipment.
Receiving Inspection Checklist for ITE Power Supplies
Visual inspection and label verification (model, ratings, marks, warnings)
Begin by looking at each unit’s labels. Make sure every label is easy to read and correct. Check for the model number, input and output ratings, and all needed marks. Look for warnings and hazard symbols that follow the rules. Ask yourself these questions: Does the label show the right model and ratings for your order? Are all IEC 62368-1 marks and warnings there and easy to read? Do the labels match the CB report and Declaration of Conformity?
Pass: All markings are easy to see, correct, and follow IEC 62368-1 rules.
Fail: If any label is missing, hard to read, or wrong.
Quick electrical checks (output voltage, polarity, basic functional check)
You need to make sure each power supply works right. Use a multimeter to test the output voltage and check the polarity. Do a simple test to see if the unit turns on and works safely. Does the output voltage fit the IEC 62368-1 rules? Is the polarity safe and correct? Does the unit turn on without problems?
Pass: All results follow IEC 62368-1 rules and safety needs.
Fail: If any unit has wrong voltage, backward polarity, or will not turn on.
Lot traceability checks (date/lot code, revision, packaging labels)
Check that each unit has a date code, lot code, and revision number. Look at the packaging labels to help you track the units. This step helps you follow IEC rules and find supplies if needed. Is the lot code there and easy to read? Does the revision match your order and papers? Are all packaging labels filled out and correct?
Pass: All codes and labels are there and match your papers.
Fail: If any code or label is missing or does not match.
Sampling plan basics (AQL approach) and what to quarantine immediately
Use an Acceptable Quality Level (AQL) plan for your checks. Pick a random group of units from your lot to test. Use IEC 62368-1 rules to decide if they pass or fail. Does your sample pass all IEC 62368-1 rules? Are there any units with big safety or rule problems?
Quarantine right away:
Any unit that fails safety checks
Any unit missing IEC 62368-1 labels or papers
Any unit with changes you did not approve or failed tests
Tip: Always write down what you find and keep records for every shipment. Quarantining bad units right away keeps your supply chain safe from power supplies that do not follow the rules.
Common Nonconformities and Red Flags in IEC 62368-1 Procurement
Certificate/report scope mismatch (wrong model, wrong ratings, wrong edition)
You need to make sure the CB certificate and report match your order. Check if the model, ratings, and edition are correct. If anything does not match, do not accept the shipment. Ask your supplier these questions: Does the CB report show the same model and ratings you ordered? Is the report using the newest edition of IEC 62368-1? Do all the details match your request and order?
Pass: Everything matches your order and IEC 62368-1 rules.
Fail: If there is any mismatch, stop the shipment and ask for a fix.
Missing CB report details, unclear deviations, or unverifiable report numbers
If the CB report is missing information or is not clear, this is a big warning sign. You must see all the needed details, like changes and report numbers. Ask these questions: Is the report number real and easy to check with the group that gave it? Are all country differences and changes listed? Can you check the report in the official IEC database?
Pass: All the information is clear and easy to check.
Fail: If anything is missing or not clear, do not accept the supplies.
Uncontrolled revisions (label says one model, documentation says another)
You need to check that the model and revision on the label are the same as in the papers. If the versions do not match, it breaks IEC 62368-1 rules. Ask: Does the label show the same model and revision as the CB report and DoC? Are all the papers updated to the same version?
Pass: All versions match on labels and papers.
Fail: If there is any difference, set the power supplies aside.
Missing critical component evidence or unauthorized substitutions
IEC 62368-1 needs proof for all important parts. If proof is missing or parts are not approved, it can be dangerous. Ask: Do you have a full list of important parts with approvals? Are all replacement parts listed and approved in the test report?
Pass: All parts and replacements have proof and are approved.
Fail: If anything is missing or not approved, stop the shipment and ask for new tests.
Marking/label errors and incomplete traceability (no lot/revision control)
You must check all labels and codes for tracking. IEC rules say labels and lot codes must be clear. Ask: Are all needed labels there and correct? Can you track each unit by lot and revision?
Pass: All labels and tracking codes are there and correct.
Fail: If any label or code is missing or wrong, set the units aside and check.
🚩 Tip: If any of these checks fail, do not ship the products. Always make sure everything follows IEC 62368-1 safety rules and has the right papers.
Change Control and Re-Validation Triggers
You need to watch for changes that affect 62368-1 rules. Use this checklist to find when you need a new review or test proof. Always ask your supplier for proof before you say yes to any change.
Safety critical component changes (transformer, optocoupler, fuse, Y-cap, insulation materials)
Ask: Did the supplier swap any transformer, optocoupler, fuse, Y-cap, or insulation material?
Pass: The supplier gives a new CB report or test results for the new part. All IEC rules are followed.
Fail: There is no new report, missing data, or unclear approval for the part.
Electrical/PCB/layout changes impacting creepage/clearance or insulation
Ask: Did the supplier change the PCB layout, space, or insulation system?
Pass: The supplier gives new drawings and test results. All IEC 62368-1 rules are followed.
Fail: There are no new drawings, missing test results, or unclear changes.
Mechanical/enclosure material changes impacting safety safeguards
Ask: Did the supplier change the case design or the material?
Pass: The supplier gives new flammability and strength test results. All IEC rules are followed.
Fail: There is no new test data or the material information is not clear.
Supplier manufacturing site/process changes and subcontracting changes
Ask: Did the supplier move the factory, change how they make it, or use a new helper company?
Pass: The supplier updates the CB report and Declaration of Conformity. All IEC 62368-1 site details match.
Fail: There are no new papers or the site is not known.
Regulatory updates (new edition requirements) and customer complaint/field failure triggers
Ask: Is there a new edition of IEC 62368-1 or other rules? Did you get a customer complaint or did something fail in the field?
Pass: The supplier checks all rules and gives new proof. All test reports follow the newest rules.
Fail: There is no review, missing test data, or old rules.
Tip: Always ask for written approval and new test proof for any change. Do not accept shipments until you check 62368-1 rules for every change.
Copy-Ready IEC 62368-1 Procurement Verification Checklist Table
RFQ stage checklist (questions to ask + documents to request)
Question to Ask Supplier | Document to Request | Pass/Fail | Notes |
|---|---|---|---|
Does the CB certificate match your part number? | CB Certificate and CB Report | ||
Is the CB report current and valid? | CB Report (with edition/date) | ||
Do all ratings and models match your RFQ? | Model/rating table | ||
Are all national differences listed? | National deviations list | ||
Is the lab accredited for IEC 62368-1? | Lab accreditation certificate | ||
Do you have a full list of critical components? | Critical components list | ||
Are all safety datasheets and approvals included? | Component datasheets/approvals | ||
Is the Declaration of Conformity complete? | DoC (with factory address) |
Tip: Only say yes to suppliers who give every paper and clear answers.
Receiving inspection checklist (what to check + pass/fail notes)
What to Check | Pass/Fail | Notes/Action Required |
|---|---|---|
Model, ratings, and warnings on label | ||
Output voltage and polarity (multimeter test) | ||
Lot code, date code, and revision on unit | ||
Packaging labels match shipment documents | ||
All IEC 62368-1 marks present and readable | ||
No visible damage or tampering |
Quarantine any unit that does not pass label, electrical, or tracking checks.
Change control checklist (what changes require review/re-test + evidence needed)
Change Type | Evidence to Request | Pass/Fail | Notes |
|---|---|---|---|
Transformer, optocoupler, fuse, Y-cap, insulation change | Updated CB report/test results | ||
PCB/layout/insulation change | New drawings and test results | ||
Enclosure or material change | Flammability/mechanical test data | ||
Factory or process change | Updated DoC and CB report | ||
Regulatory update or field failure | New test reports and compliance review |
Always ask for new proof if anything changes. Never accept shipments until you check everything is correct.
You must use clear steps for every ITE power supply. First, check if the product fits the rules. Next, collect all needed papers from your supplier. Then, do safety checks and look at each shipment. You also need to watch for any changes. Make your checklist the same for every order and use it as your company’s rule. Always ask for proof that matches the latest version for each delivery.
If you do not have CB proof, or if the model changes without control, or if important parts are swapped, stop the shipment. This helps you follow the rules and keeps your supply chain safe.
FAQ
What documents must you collect before approving a shipment?
You need to get the CB certificate, CB report, Declaration of Conformity, lab accreditation, and a list of critical components. Make sure all these papers match your order. Check if each document shows clear pass or fail results.
How do you verify the CB report matches your product?
Look at the model number, ratings, and edition on the CB report. These must be the same as your RFQ and shipment labels. If something does not match, mark it as fail and ask for fixes.
What should you do if a supplier changes a critical component?
Ask for a new CB report or updated test results. Do not say yes to the shipment until you check and accept the new proof. Mark as fail if the supplier cannot show evidence.
When should you quarantine a shipment?
Set aside any shipment with missing papers, wrong labels, failed electrical tests, or changes you did not approve. Only let units go after you check all IEC 62368-1 rules are met.
