Current transformers with circular primary conductor for primary nominal currents from 100 A up to 400 A, secondary nominal current 5 A or 1 A (optional 2 A), accuracy class 0.5, 1, and 3 (optional in class 0.2s, 0.2 and 0.5s).

* Therm. nominal continuous current Icth: 1,2 x In

* Therm. nominal short-time current Ith: 60 x In, 1 sec.

* Max. operating voltage Um: 0.72 kV

* Isolation test voltage: 3 kV, Ueff, 50 Hz, 1 min.

* Nominal rated frequency: 50 Hz

* Isolation class: E