MEAN WELL LOP-300 Series

UL Listing or Recognition means UL Solutions tested samples against the applicable UL safety standard and audits the factory that builds them. A UL file number is the usual evidence an inspector or specifier asks for in North America.

A TÜV certificate is third-party testing against the European EN standard. It is the evidence behind a CE declaration rather than a replacement for it: CE remains the manufacturer's own declaration, and the TÜV report is what makes that declaration defensible.

A CB Test Certificate reports testing against the IEC standard and is accepted by member certification bodies as the basis for a national approval. It shortens a new-country approval rather than granting market access by itself, so it is the most useful item on this list when you are entering a market that is not shown here.

China Compulsory Certification. Mandatory for the product categories in its scope; where it applies, a shipment without it is not clearable. Certification is against the GB standard the datasheet cites.

Conformity with the Eurasian Economic Union technical regulations, covering Russia, Belarus, Kazakhstan, Armenia and Kyrgyzstan. TP TC 004 is the low-voltage regulation and TP TC 020 the electromagnetic-compatibility one, so which number appears tells you what was assessed.

The Regulatory Compliance Mark covers electrical safety and electromagnetic compatibility for Australia and New Zealand. It is applied by a registered local supplier against an AS/NZS standard, which is why the datasheet cites AS/NZS numbers alongside it.