Three standards are repeatedly named in tracker and racking tenders. They do not cover the same objects, and mixing them up can remove a required structural check from a specification.
UL 3703 addresses solar trackers, but its scope explicitly excludes wind, seismic and foundation design as well as uplift at the platform connection, and it does not apply to trackers installed over water, near-shore or above standing water.
IEC 62817 is a design-qualification and type-test standard. UL 2703 covers mounting systems and modules in a different scope. A 'CE mark' is not the same class of document as either.
Why this entry exists
The scope matrix
We publish a three-column matrix: what each standard covers, what it expressly excludes, and which installation environments are in scope. Procurement teams can lift it directly into a checklist.
The framework
Checklist for tender documents
Ask separately for tracker type test evidence, structural and foundation design to the relevant building code, module attachment evidence, and corrosion classification. One certificate cannot answer all four.
Status matters
Some documents are active, others are in development. Every entry in the Wiki carries a status and a last-verified date so a reader knows whether they are reading current or proposed scope.
Data box
| Field | Value as reported |
|---|---|
| IEC 62817 | Tracker design qualification and type testing |
| UL 2703 | Mounting systems and modules, distinct scope |
| UL 3703 | Trackers; excludes wind, seismic, foundation and platform-connection uplift; excludes water/near-shore installations |
| Status field | Active / in development / proposed |
| Related structural codes | EN 1090, EN 1993, AS/NZS 1170 |
All figures above are quoted with the unit and reference period used by the primary source. They are reproduced here for reference, not independently re-measured.
How to use it in a tender or a brief: verification note
UL 3703 exclusions must be quoted in the words of the standard's scope. A CE marking and IEC design qualification are different classes of compliance document and are never listed as equivalent.
What to watch next
The publication status of IEC 62817-1 ED1 and any revision to the UL 3703 scope.
Primary sources
- UL Solutions / UL 3703 Scope (CSDS proposal published 2026-07-27)
- UL 2703 scope
- IEC 62817:2014+AMD1:2017+AMD2:2026 CSV
Researched and written by the solarrack.wiki editorial desk. Every figure in this article carries a source and a verification note; where a claim could not be confirmed against a primary document, it is labelled as such. Corrections: [email protected]
