LEM current transducer Lf305-s/sp11 LEM current transducer Lf505-s/SP13 LEM current transducer Lf1005-s/SP16 LEM current transducer Lf1005-s/SP36 LEM current transducer Lt1005-s LEM current transducer Lf310 LEM current transducer La305s LEM current transducer LA205s-s LEM current transducer Esm2000-9938 ABB current transducer Cm2000-9720 ABB current transducer ESM500-9999 ABB current transducer Lf1005-s/sp28 LEM current transducer