"""Flex-Core 2SFT-201 Flexicore Ct Flex-Co,""" Flex-Core Current transformer in rectangular has input current rating of 150 Amps and offers an output current rating of 5 Amps. Solid core current transformer of inside diameter 1.13 inches offers /- 1% accuracy at 60 Hz. It has burden power rating 2 VA at 60 Hz and is with ammeters. It measures 2.680 Inch x 2.400 Inch. Current transformer includes brass stud terminal with one flatwasher lock washer and regular nut. Current transformer is UL listed.