This current transformer, tropicalised for busbar, has a line rated current of 2000 A and a secondary current rating of 5 A. This current transformer do have a 40 mm x 103 mm opening. Compatible with a single output for bar: 102 mm x 38 mm. Burden and accuracy class as follows: class 0.5 maximum power: 20 VA, class 1 maximum power: 25 VA.