ABB current transducer ESM500-9999 current transducer ABB ESM1000 current transducer ABB ESM300 current transducer ABB LF306-S LEM current transducer ESM2000 ABB current transducer A5E00297617 igdr with igbt A5E00297621 igdr with igbt A5E00297630 igdr with igbt LF1005-S/SP36 LEM current transducer LF505-S/SP27 LEM current transducer