Image note: The photograph is a representative website product image. It does not establish that the pictured configuration holds an IECEE CB document, an IECEx certificate or approval for a particular application.
IECEE CB vs IECEx: identify the route first
The IEC catalogue description of IEC Guide 115:2023 explains the IECEE CB Scheme as an international arrangement for acceptance of reports on electrical products tested against IEC standards. The guide itself concerns measurement uncertainty; its description is used here only to establish that limited scheme context.
The IECEx Certified Equipment Scheme FAQ describes a route addressing equipment for explosive atmospheres and explains its Certificate of Conformity. These are different questions to put to a document. An IEC publication number tells you which standard is cited, not that every form of IEC-related assessment has been completed.
Start with the complete document heading, issuer, reference and product description. Do not sort the file using only a supplier's folder name, an abbreviated email subject or a familiar logo. Those shortcuts can put technically different evidence into a single misleading category called certification.
Map the document to the requirement
A purchasing review works better when the requirement is written before the document is selected. Record what the project needs demonstrated, which offered item is involved and who will judge the response. Then attach the evidence proposed for that particular question.
For example, a supplier might provide an electrical-product test document when the enquiry asks about a hazardous-area configuration. That is a reason to clarify scope, not to declare the document false. It may be relevant to another part of the project. The unresolved question is whether the required Ex evidence for the exact item has also been supplied.
| Evidence presented | First review question | Do not infer |
|---|---|---|
| IECEE CB document | Which product and standards does it identify? | That it is an IECEx Certificate of Conformity |
| IECEx equipment certificate | Which exact configuration and conditions are covered? | That every project requirement is settled |
| General test report | What claim and specimen does the report actually address? | That every test report belongs to a certification scheme |
| Catalogue or quotation | Which complete item is being offered? | That a brand-level statement covers all variants |
This table is an editorial document-sorting aid. It is not a complete description of either scheme's rules, a certification checklist or a determination that a particular document is acceptable.
Keep the product identity attached to the evidence
The next step is matching the offered reference to the item described in the document. Record options that the supplier says affect the configuration. Where the quotation uses a short family name and the document uses a longer reference, ask for a written mapping instead of assuming they are identical.
Retain the attachment supplied with the answer and identify its issue or revision. If a quotation changes, review the mapping again. A document collected at the start of an enquiry may be genuine and still fail to describe the final order as revised.
Avoid transferring a conclusion between visually similar products. A photograph is useful for identifying the enquiry, but it cannot explain which internal construction, options or product reference a document includes. The purpose of the mapping is to make the supplier's claim specific enough for a responsible reviewer to assess.
For the separate authenticity and status check, follow the IECEx and ATEX document-verification guide. This article addresses route confusion before that detailed verification step, rather than repeating the whole certificate-search process.
A valid route still has a defined boundary
The IECEx FAQ identifies its online certificate record as the controlled version and notes that destination markets can require additional national processing or approval. An international assessment route should therefore not be rewritten in a purchase order as unconditional worldwide permission to install a product.
Keep the installation country, required approval route and actual application in the enquiry. Ask the project reviewer which requirements are already addressed and which require a separate response. The IECEx national-differences guide is a reading route for that destination question, not a substitute for checking the applicable requirements.
If ATEX is also specified, treat it as its own conformity question. Use the ATEX versus IECEx guide for that distinction. Neither the appearance of an IEC standard number nor the existence of a different scheme's document automatically answers an ATEX request.
Record a clear disposition, not a generic tick
A useful review record distinguishes evidence received, identity confirmed and technical acceptance completed. These are separate states. Receiving an attachment does not mean that its scope has been assessed, and checking an issuer does not mean that the offered configuration is suitable.
Where something is missing, state the exact question. For example, ask which document addresses the quoted hazardous-area configuration, rather than asking for every certificate the supplier possesses. Name the person responsible for resolving the question and retain the answer with the offer revision.
At handover, pass on the accepted references and remaining conditions rather than an unexplained certification tick. That makes the review understandable to colleagues who were not part of the original correspondence. It also reduces the chance that one document will later be reused as evidence for an unrelated item.
Primary sources and reading limits
The current IEC catalogue identifies IEC Guide 115:2023 as Edition 3.0. Only its public scheme description is summarised here, not its measurement-uncertainty method. The IECEx FAQ supports the limited equipment-scheme, controlled-record and destination-market points above. The purchasing workflow is original editorial guidance. Read the applicable full scheme documents and project requirements when making an actual acceptance decision.
Current MMAIATEX certification status
MMAIATEX is the public brand of MMAIATEX Explosion-proof Technology (Zhejiang) Co., Ltd. On the review date, the company's About page describes ATEX, IECEx and CCC certification as in progress. This is an attributed website statement, not independent verification of a model's certificate. No IECEE CB or IECEx certification is claimed for a pictured or offered product in this article.
Safety and legal disclaimer
This is general purchasing information, not a legal determination, product approval or permission to install equipment. Competent reviewers must establish applicable requirements and assess the exact product, documents and installation. Do not accept a substitution between assessment routes without resolving what each document actually demonstrates.
Contact MMAIATEX about the evidence route
Provide the proposed product reference, destination market and document title that prompted your question. State which project requirement you need clarified so the enquiry does not imply certification that has not been verified. Contact MMAIATEX.