... -5000A Secondary approval: 5A, 1A SDH-0.66 Current TransformersSDD-0.66 Series·Primary current: 100A-5000A·Secondary approval: 5A, 1A·Standard ... current: BS7626, IEC44-1·Maximum voltage: 0.72KV·Frequency: 50-60Hz· ... , 3.0·Short-time thermal current: Ith=100 Ih·Rated security coefficient: FS<5·High fire retardancy and security·Wide range of ...