Screw-In Plug Fuses, Tamper-Proof Fuses, and Fuse Adapters If you have an older-style fuse panel made for Type-D plug fuses, it's a very good idea to convert the panel to Type-S (tamper-proof) fuses. 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. Amazon: 20 amp plug fuse wwwon›Search›20 amp plug fuseAmazon: 20 amp plug fuse. Type S 20 Amp 125 V Industrial Strength Box / 4. by Buss. $11 $ 11. 68. Get it as soon as Wed, Mar 13. FREE Shipping on orders over $25 shipped by Amazon. Only 3 left in stock - order soon. Bussmann (BP/ATC-20-RP) ATC Automotive Fuse, (Pack of 5) by Bussmann.