Hello Group, I have a question for products which an external DC power adapter. The product is supplied with a DC power adapter which is current limited, provides overload and short circuit protection and is specified to accept an overload or short circuit condition continuously.
Assuming that the rated current for a product is 1.0A, and assuming that the fuse rating is determined at 1.5A, then a rating of the power adapter of anything over 1.0A would seem to be sufficient for operation and protection. However if the rating of the power adapter does not exceed 1.5A, the fuse would probably never blow. Is this acceptable? Is there a rule of thumb for the rating of a fuse and for a power adapter? kind regards, Ton
