... Current: 355A Ir: 80kA@415V BS88:part 5 Description: J type fuse (MJ30-7,MJ31-7,PJ31-7) designed for use ... : - 80kA@415VApplications: For use by electrical authorities in distribution pillars, open type substation boards, heavy duty cut-outs, and underground connection boxes ... .Comply with BS88: Part 5 FP Fuse 82mm type J slotted tag