North America
UL standards and EVSE field safety testing in North America.
Separate charging-equipment product certification from inspection of the installed charging point. UL 2231 addresses personnel-protection systems, while UL 2202 covers DC charging equipment. Field checks must follow the locally adopted electrical code, equipment instructions and the authority responsible for the installation.
Test area and results
| Test area | What to define or record |
|---|---|
| UL 2231-1 and UL 2231-2 | Personnel protection for EV supply circuits. |
| UL 2202 | DC charging-equipment product safety. |
| NEC Article 625 | Installation requirements. Confirm local adoption and the responsible authority. |
| Field test report | Record installation identity, method, setup, result and applicable limits. |
| UL 2594 | AC EVSE product-safety scope. Select the equipment category before comparing requirements. |
UL Standards & Engagement develops and publishes UL standards. Its official catalog identifies UL 2202 for DC charging equipment, UL 2231-1 for general personnel-protection requirements and UL 2231-2 for protective devices in charging systems. UL Solutions provides testing, inspection and certification services. Select the adopted installation requirements and responsible authority separately for the installed charging point. [1] UL Standards & Engagement: UL 2202 [2] UL Standards & Engagement: UL 2231-1 [3] UL Standards & Engagement: UL 2231-2 [4] UL Standards & Engagement: publisher and standards process UL Solutions also identifies UL 2594 for AC EVSE. Easy Chester Micro is for AC installed-point checks; discuss Ultimate for configured AC/DC checks. Neither product name alone establishes complete UL certification coverage.
A repeatable test workflow
- Separate product and installation records. Identify the product certification evidence, installed equipment and intended field inspection. Record location, supply arrangement, equipment instructions and authority having jurisdiction.
- Agree the inspection method. Use the applicable adopted code and equipment instructions to select the checks and limits. Confirm tester interfaces, ratings and permitted test methods before connecting.
- Inspect and test the installed point. Perform the authorised visual and electrical checks with the responsible qualified personnel. Record individual protective-measure results and the condition of the installation.
- Check charging function separately. Use a suitable configured AC or AC/DC field setup to exercise the agreed station function. Distinguish the functional session from the electrical-safety evidence.
- Document findings and disposition. Keep measured values, method, instrument identity and defects in the report. Assign required corrective action and repeat the affected checks after correction.
Define the acceptance records
| Check | Evidence for the verdict |
|---|---|
| Applicable authority | The report identifies adopted requirements, equipment instructions and inspection responsibility. |
| Suitable method | Tester configuration and test method match the installed system and selected checks. |
| Individual evidence | Each required check includes its measured or observed result and applicable acceptance basis. |
| Correct disposition | Open defects, corrected defects and retest results remain distinguishable. |
Fault examples and diagnostic checks
Product mark treated as installation acceptance
Review the installed wiring and adopted code separately from the charger’s product certification.
Functional charge succeeds, protective check fails
Retain both outcomes and resolve the failed protective requirement through the responsible inspection process.
Wrong field tester selected
Confirm AC/DC role, interface and supported inspection methods rather than selecting by product-family name.
Practical tip. Keep product-certificate references and the installed-point test report in separate labelled sections. Link them through the equipment serial number and site identity.
Questions about this test scope
Does field testing certify a charger to UL?
No. Product certification has its own laboratory and certification process. Field testing documents the agreed installed-system checks.
Does Ultimate cover every UL requirement?
No such blanket coverage is asserted. Confirm individual methods, interface compatibility and configuration with the application team.
Who determines the applicable installation code?
The locally adopted code and authority having jurisdiction determine the installation requirements.
Can Micro test DC charging points?
Micro is an AC installation tester. Configured AC/DC installation tests require a suitable system such as Ultimate.
What should be captured before a field retest?
Record the defect, corrective work, responsible party and affected checks, then retain the original and repeated results.
Can one successful charging session close all field findings?
Close each applicable inspection finding with its required records. Charging function is one identified part of the field scope.
Where should regional limits be recorded?
State the adopted requirement and method in the site report. Avoid copying a limit from a different jurisdiction or equipment type.