Mercury - 10-Amp Fuse Set Electrical Protection Series Marine-Grade Copper Alloy 895227. Overview. Every boater has had that moment when something electrical goes quiet-a pump, a gauge, a small accessory you rely on more than you realized. When it happens, you want a simple fix you trust. That's where a quality fuse makes all the difference. It's not the flashiest part on the boat, but it's one of those unsung pieces that keeps everything running smoothly. With the right Mercury Marine fuse in p