Fuses

Our Fuses range covers marine fuses and circuit protection for a boat’s 12V/24V electrical system – blade, glass and specialist marine fuses that protect wiring and equipment from overload and short-circuit damage.

A fuse’s job is to fail safely before your wiring or equipment does, so using the correct amp rating matters more than it might seem – too high a rating and the fuse won’t protect the circuit before wiring overheats; too low and it blows under normal load, which tempts people to fit an oversized replacement rather than diagnosing the actual fault, a genuinely dangerous habit. Marine-specific fuses and fuse holders resist the corrosion that a standard automotive fuse holder suffers quickly in a damp, salty environment, so it’s worth using marine-rated components throughout rather than mixing in generic parts. If a fuse blows repeatedly, that’s a sign of an underlying fault (a short, an overloaded circuit, a failing component) rather than a weak fuse – replacing it again and again with the same or a higher rating without investigating the cause risks a genuine electrical fire.

Keep a range of spare fuses matching your boat’s actual circuits aboard, since a blown fuse mid-trip with no spare means losing that circuit entirely until you can replace it.

Frequently asked questions

Can I fit a higher-rated fuse if mine keeps blowing?

No – a fuse that blows repeatedly signals an underlying fault (a short or overload), and fitting a higher rating removes the protection that fault needs, risking an electrical fire.

Why should I use marine-specific fuses rather than automotive ones?

Marine fuses and fuse holders resist the corrosion that standard automotive components suffer quickly in a damp, salty boat environment.

What spare fuses should I carry?

A range matching your boat’s actual circuits and their correct amp ratings, so a blown fuse mid-trip doesn’t leave you without that circuit until you can get a replacement.