Features High Accuracy Many different models with numerous window sizes and mounting hole centers UL recognized – file number E93779 Manufactured to meet the requirements of IEEE C57.13 Units can be designed to meet the requirements of IEC-44-1. Voltage Class: 600V BIL Rating: 10kV Primary Currents: 50 to 6000 amps Description These Instrument grade, window type current transformers are used with ammeters in such applications as panel boards, control panels and engine generators. They can be supplied with leads or terminals and mounting brackets. They meet the requirements of IEEE C57.13 -1993 and can be used for most metering and relaying applications. A wide range of window sizes and ratios up to 6,000 amperes are available.