... ,50V,100V...TO 300V,500V,600VAC DIRECT CONNECTIONCLASS 1.5FROM 1KV,2KV, 5KV...TO 380KV,450KVWITH EXT.VOLTAGE TRANSFORMERCLASS 1.5DC ... ,20V, 30V...TO 500V,600V,1000VDC DIRECT CONNECTIONCLASS 1.5FROM 1KV,2KV, 5KV...TO 8KV,9KV,10KVWITH EXT. RESISTORCLASS 1.5FREQUENCY ...