The Solid-core current transformer, model CT12, is designed for accurate measurement of electrical currents. It has a current ratio of 1000/5 and an accuracy class of 0.5 at 20 VA. The transformer can handle a test voltage of 3 kV at 50 Hz/1min and has an insulation class E (120 deg C). To ensure safety and reliability, the transformer is equipped with a sealable terminals cover for the secondary terminals. The housing material is made of self-extinguishing thermoplastic resin V0. The dimensions of the CT12 type transformer are 196Hx180Wx68.5D mm. It has a cable diameter opening of 2x50 mm and can accommodate bars with dimensions of 80x50 mm, 100x50 mm, and 125x50 mm. This transformer is versatile and can be adapted to various mounting systems including primary cable, primary busbar, DIN rail, and wall-mounting.