... standard type:1.FL-2 series type shunt ,precision class 0.5 Specifications:1A to15000A Secondary voltage:20mv,30mv,50mv,75mv ... and so on2.FL-27 series type shunt,precision class 0.2 Specifications:1A to 4000A Secondary voltage:20mv,30mv, ... so on3.FL-21 series export type shunt,precision class 0.5 Specifications:1A to 6000A Secondary voltage:20mv,30mv, ... and current capacity of up to 25,000A RS-10A