The item is an Abb CombiLine, TriLine-R rail copper with no surface treatment (untreated). It features a single Cu 20x5mm size and a 320A B2 rating. The lack of surface treatment implies that it is designed to function in applications where surface protection isn’t necessary.
Specifications
Rated current In (A) : 320
Model : Flat
Length (mm) : 500
Width (mm) : 5
Height (mm) : 20
Flexible : No
Surface protection : Untreated




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