... over the world 1.Standard type:1.FL-2 series type shunt ,precision class 0.5 Specifications:1A- ... :20mv,30mv,50mv,75mv,100mv and so on.2.FL-27 series type shunt,precision class 0.2 Specifications: ... 1A-4000A Secondary voltage:20mv,30mv,50mv,75mv,100mv and so on ... .3.FL-21 series export type shunt,precision class 0.5 ...