What size fuse should I use for boat lights?

The circuit for the lights should have no more than a 5 amp fuse. 12 ga wire will do fine for this one.

What size ANL fuse do I need?

ANL type fuses are the most common types of fuses used to protect the main power wire in car audio systems. ANL fuses are available from Bussmann in sizes from 35 amps to 750 amps….

Wire Gauge Recommended Maximum Fuse Size
4 awg 125 amps
6 awg 80 amps
8 awg 50 amps
10 awg 30 amps

What are the different fuse sizes?

Size groups

Blade size Blade group Common ratings (maximum current)
Micro2 APT, ATR 5, 7.5, 10, 15, 20, 25, 30
Micro3 ATL 5, 7.5, 10, 15
LP-Mini (low profile) APS, ATT 2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30
Mini APM, ATM 2, 3, 4, 5, 7.5, 10, 15, 20, 25, 30

Where is the main fuse on a boat?

The location is typically underneath the seats or main console panel. If you have an older pontoon, it will resemble the fuse box in your home. On the boat, it could be a small box or a large assortment of wires.

How many watts can a 20 amp fuse handle?

2,400 watts
A 20-amp breaker can support up to 2,400 watts on a single circuit. The safe maximum for a 20-amp circuit is 1,920 watts, but circuits should not be loaded to more than 80 percent of their maximum capacity.

Can a BS 1361 fuse be used on a 40A fuse?

No – a 40A fuse is not in the preferred range for BS 1361 – so if you have one (such as for a cut-out ) it is ‘non-standard’ and you would have to get the data from the manufacturer . Edit: To remove the Wylex fuse from my text – just noticed that the 40A carrier uses a BS 88 – 1, not a BS 1361 type 1.

What should the fuse size be on a boat?

The general practice would be to fuse it for the ampacity of the wire you wired it with. Remember, the fuse doesn’t protect what’s plugged into it — it protects the wiring going to the receptacle. If a problem exists in whatever you plug into the receptacle it will be toast anyway.

How big of a fuse do I need for a bilge pump?

The bilge pump probably has 16 gauge wire which is much smaller and cannot handle 25 amps if a short should occur. Wire and fuse sizes must be considered carefully. You can use fuses smaller than the rating of the smallest wire in the circuit, but definitely not larger.

How big of a fuse do I need for fish finder?

But here are some estimates. Blower, bilge, wipers and horn are very likely in the 10A range. Instrument and NAV lights will be fine with 5A fuse. Fish finder will be fine with a 3 amp. CD player probably needs a 5 amp if it has any output power to speak of.