Keyed for Safety - Rejection Fuses Explained
Why is my fuse shaped like this … and why are the ends not the same? That fuse is called a rejection fuse and “keyed” like this to fit into a device that will only support this style of fuse. In this case, a higher level of Interrupting Current - the maximum amount of fault current the fuse can withstand. These types of fuses are there to keep devices, systems and people safe. They are made to be accepted by devices with that higher level of safety in mind. A fuse of a lower type of Interrupting Rating will have similar ends and will not mechanically fit into a device having that design - it’s a mechanical interlock - ensuring safety.
Class CC fuses are rejection fuses and have a 200KA Interrupting rating. American Electrical, Inc. (AEI) offers a Class CC style DIN Rail mounted fuse holder with just that feature in mind. The class CC style fuse holder only accepts a rejection fuse and therefore will uphold the higher level of safety required in the design. Please see our website below or call us at 804.379.2899 for more information ????
AEI offers all types of DIN Rail mounted fuse holders that offer finger safe desigs in a broad range of fuse types and amerages - check out the link below:
https://www.americanelectrical.com/category/protection/din-rail-mounted-fuse-holders/
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