Bussmann 63let icprotector fuse 63a 240v bussmann 63let p the bussmann 63let is an ic protector fuse rated at 240v 63a this fuse from the let series has bolted connections making it ideal for use in industrial and commercial installations the fuse link complies with revised standard bs88 part 2 and iec60269 part 2 standards p bussmann 63let ic protector fuse 63a 240v