The Mersen A70QS40-14F is a high-speed, industrial ceramic fuse designed for reliable protection. With a current rating of 40A and dual voltage ratings of 690V AC and 700V DC, this cylindrical fuse offers robust performance in demanding applications. Its compact 14x51mm size makes it suitable for various industrial fuse holders.This Mersen fuse, model A70QS40-14F, is a ceramic, cylindrical, industrial type fuse. It features a current rating of 40A and is rated for 690V AC and 700V DC. The fuse size is 14x51mm.