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That's normal, and definitely comply with UL's listing mark requirements.$ Z8 z; D9 s& I. q: c/ S3 N
For UL listed products: 4 elements is the necessary requirements:
1 T' I8 W) Q0 j% e+ Y1 r1. "UL" with a circle;1 Q% Q; D/ w! X
2. "Listed";
& C) w4 P/ I8 H6 h2 H3. Product identity: Receptacle;
& j a, ?3 V4 [" N: `8 {4. Control No.: 264B(normally 4 digi-characters)
& ?. M' j" [# D- Y l9 ]. A( p' } t @! p% h0 ~
So the mark you concerned does comply with UL requirements, and the UL file No. is not a necessary element, and its UL FUS procedure also should describe the requirements as it indicates.4 f; k9 B* J9 p( Q
3 t5 o% t; o# ]As to the standards, I can not remember it, but could be UL498 or UL1977... |
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