Lable requirements for UL

Andy.Yang

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5 d' T: G+ R( j. l6 v+ o% KTopic I--->Classification for UL type R markings
Basically, for UL type R category products, there are three kinds of UL marks which we can find in the market:
* Z; X, G9 J6 t  a- E. M* H; y1. The UL listing mark: most of the UL final products can be covered in this kind of marking, such as the computer, PC, domestic appliance, power tools, and etc. For this kind of UL mark, it must be shown on the product itself;
2. The UL recognized mark: this kind of mark only applies to the components, not the whole products, and normally this kind of mark is "RU" with the "R" turns to the opposite direction. Not the same as the UL listing mark, this mark is not compulsory to be shown on the product itself or on the package, but in most cases, the manufacturer will show this mark on their products or the packages for those products;
( I! D9 O% F: n3. The UL classified mark: this kind of mark is for some special products, and only some characteristics of those products can fulfill the UL's requirements, then it's not so common compared with the UL listing and recognized markings.
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# e! `/ i; H9 `- U  GTopic II--->Decription and requirements for UL type R labels
Not similar with the UL type L labels, the manufacturers don't need to order and buy the UL labels directly from UL, at this time the manufacturers can print the labels by themselves or buy the labels from a UL authorized Label provider, so pls see below for details:
1. For UL listed/listing mark:
Normally, if this kind of mark is laser-printed or die-stamped, there is no special requirements for the labels,and at this time , the manufacturer only needs to send the design drawing of the label to UL label center and let the label center to review the design, then ok is ok.
But if the labels are adhesive paper label, then there are many requirements in most cases for the label provider:
6 z2 n& N/ p# J! ]/ o" i7 B- E1) The label provider must have the UL PGAA and PGJI2 or PGDQ2 program, that means there are two combinations for this kind of labelPGAA+PGDQ2)and  (PGAA+PGJI2).
" U9 f7 K: v& C% R2) The label design drawing must be approved by UL label center, that means the manufacturer or the label provider must let the label design approved by UL before they apply the labels to their products.
3) If PGAA+PGJI2 is used, at this time, the label provider only provide blank or partial blank labels to the manufacturer, then the manufacturer can print some content on the labels by themselves, pay more attention that the ink or the ribbon which the manufacturer used must match the label materials, and this matching information can be found on the UL website.
5 `$ k' m" e: _2. For UL recognized mark:
) \+ W4 j  Z& ^: o* ]Basically, in most cases,the "RU" in not the necessary element for this kind of products except the PWB, AWM. So for this kind of mark:
1) The PGAA program is not needed for the label provider.
* D0 y7 B5 G8 q  m, P9 N2) The PGDQ2 or PGJI2 is needed and the requirements is similar with the listing mark.
6 u; h) V) d$ V) S+ R3) Label design review is also  not needed.

, Y& y. ?$ i( |5 E0 \$ sI'm a little tired now, this time for UL type R, next time, continue...