Direct answer
An EV charging-gun distributor should check the supplier’s exact model evidence, connector direction, AC or DC role, electrical configuration, sample results, quality records, labeling and change-control process before comparing quotations. A factory overview or low unit price is not enough: the distributor needs a model-level response tied to the intended charger, vehicle, market and order stage.
Who this checklist is for
Use it when you are shortlisting suppliers for a distributor range or project order. The goal is to reduce wrong-direction, mixed-revision and unsupported-claim problems before samples or stock are approved.
What should you ask first?
| Check | Ask the supplier to identify | Why it matters |
|---|---|---|
| Equipment role | AC cable, portable EVSE, adapter or DC assembly | Similar housings can serve different systems |
| Direction | Charger side and vehicle side | Plug shape alone does not prove direction |
| Configuration | AC/DC, phase, voltage/current class and cable | Ratings are model- and market-specific |
| Revision | Drawing, datasheet and sample revision | Repeat orders need the approved version |
| Evidence | Test scope, inspection records and document owner | A certificate or photo may cover another model |
How should a distributor compare suppliers?
- Send the same RFQ fields to each supplier.
- Require assumptions and open questions in the quotation.
- Match each response to a model, revision and target market.
- Request drawings, label proofs and a representative sample.
- Test fit and operation with the intended equipment where applicable.
- Record incoming and final inspection criteria before the first order.
- Freeze the approved model and require written review for changes.
What should the sample prove?
The sample should prove identity, physical fit, latch or lock behavior where relevant, cable and connector condition, markings, included accessories and the intended operating setup. Electrical safety tests must be performed by qualified personnel using a model-specific plan. A visual sample alone cannot prove every rating, certification or vehicle combination.
What supplier evidence is useful?
Request the model datasheet, drawing, revision record, sample photos, inspection checklist, test scope, label and packaging proof, and change-notification method. Ask which items are confirmed and which require market or order confirmation. Do not treat a general factory capability statement as proof for every SKU.
Common mistakes
- Comparing prices before normalizing connector direction and equipment role.
- Accepting a similar model without a revision number.
- Assuming an AC cable and portable EVSE have the same responsibilities.
- Copying a compatibility or certification claim from another variant.
- Approving a sample without defining the repeat-order change process.
FAQ
Should a distributor audit the factory before sampling?
Use model evidence and a representative sample first, then expand the factory review where order risk justifies it. A factory visit cannot replace model-level validation.
Is the lowest quote the best starting point?
Not by itself. First normalize role, direction, configuration, evidence, sample scope and order assumptions; only then compare commercial terms.
What should be frozen before the first order?
Freeze the model, revision, connector direction, electrical configuration, labels, accessories, packaging and inspection plan.
Related links and CTA
Review the EV charger manufacturer and OEM capability page, the EV charging product manufacturer evaluation guide, and the EV charging cable incoming inspection checklist. Send your market, product role, connector direction and target quantity for a supplier comparison.