Siemens Low Voltage Low Voltage Transformer accessories. (Dry-type 600 Volt Class). Terminal lug kits for 3-Phase ventilated transformers. AIR (112.5 kA). Primary terminal lugs 3 ( 6-350 kcmil), secondary terminal lugs 8 ( 6-350 kcmil). Note terminal bolts included (Primary, Secondary) (3/8 x 1-1/2, 3/8 x 1-1/2).