help me | Electronics › Electronics › help me This topic has 0 replies, 1 voice, and was last updated 8 years, 7 months ago by Hassan. Viewing 1 post (of 1 total) Author Posts February 16, 2016 at 6:54 pm #4297 HassanParticipant what is the function of an 300A BS88 fuse and what is the function of a RCBO by the way talking about over-current devices Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In