This tropicalized current transformer for busbar has a mains current rating of 1250 A and a secondary current rating of 5 A. This current transformer has a 40 mm x 103 mm aperture. Compatible with a single output for bar: 102 mm x 38 mm. Load and accuracy class as follows: Class 0.5 maximum power: 12 VA, Class 1 maximum power: 15 VA.