... 600V For 450-380KV,should be used with potential transformer secondary voltage 100V.DC VoltmeterModel:AM-96 AM-72 AM- ... between two wires).Operating Current:If used with CT,the secondary current 5A or 1A is standard.POWER METERWattmeters with ... 240/415VCurrent:5aThese meters are used with potential secondary voltage 100V voltage transformeror secondary current 5A CT.wattmeters with built-in converter ...