Hello Sixer

It’s been my experience that fuse rejecters come in 15, 20 and 25 amp models. There is no need for a 30 amp rejecter as you have so rightly pointed out that 30 amp is the largest plug fuse made. 25’s are rarely seen as they are really only necessary in certain specific situations where a calculated load on an A/C system or a heating load or the like calls for a 25 amp fuse. It’s becoming increasingly difficult to find even the more common fuse rejecters are most insurance companies are insisting on upgrades to breaker panels. Hope this helps.

Terry
www.theshockdoctors.ca