The XS05-245051S000000 is a split core current transformer used to measure current with out the need to break the conductor. This current transformer has an accuracy rating of Class 1. Current Ratio 200A:5A. UL 94V-O Housing. Overload withstand is 1.2 times the rated current. Operating temperature 20 – 70 Degree Celsius. 50mm ID/ 105mm OD.