We strongly recommended fitting a fuse with our regulators (and others). This will help to protect the regulator and other electrical components under fault conditions or from wiring mistakes.
We offer an in-line fuseholder and choice of fuse-rating for your convenience. If ordering 10 or 15 Amp fuseholder is mini blade size, 20, 25 & 30 Amp version is standard blade size. Sorry, no 35 or 40 Amp rating available. Only available when purchasing a Regulator.