Videos of 30 amp screw in fuse box Click to view on YouTube5:10The screw in slow blow fuse. Fuses part 464K viewsYouTube · 5/11/2012Click to view on YouTube6:1460 Amp Fuse Box177K viewsYouTube · 5/2/2012Click to view on YouTube6:57Understanding An Old School Fuse Box169K viewsYouTube · 11/7/2016Click to view on YouTube0:17General switch fuse box 30 amp1 viewsYouTube · 5/10/2016Click to view on YouTube2:09How to safely change an old apartment fuse23K viewsYouTube · 2/16/2015Click to view on YouTube4:00How To Change Fuses in an Old Home Panel25K viewsYouTube · See more videos of 30 amp screw in fuse box Screw-In Plug Fuses, Tamper-Proof Fuses, and Fuse Adapters Plug Fuse Adapters. This is easy to do with plug fuse adapters. The adapters come in 15-, 20-, and 30-amp sizes, and they simply screw into the panel sockets. Once the adapters are in place, you screw a tamper-proof fuse into the socket, and it works just as well as an old Type-D fuse the socket was originally designed for.