MAIN CHARACTERISTICS range of product ISFL160 range FUPACT product or component type BLOCK OF 1 CURRENT TRANSFORMER device application POWER SUPPLY range compatibility FUPACT ISFL - ISFL160 poles description 3P current transformer ratio 150 1 A power consumption in VA 2.5 VA COMPLEMETARY CHARACTERISTICS accessory / separate part category MEASUREMENT ACCESSORY current transformer type MEASUREMENT CLASS 1 safety factor