29-09-2018, 10:22 PM
The voltage rating is to do with what voltage the fuse can withstand after it's blown and not have it arc across. If it arcs across it's not acting like a fuse anymore. As long as the rating is higher than they voltage in the circuit then you're fine.
Fuses protect again current so that's the rating you're most interested in. The slow blow or fast blow is about how the fuse can handle momentary surges, usually when things power on such as capacitors in power supplies which momentarily draw a ton of current.
I think for older cars you use fast blow as has been mentioned.
Simon
Fuses protect again current so that's the rating you're most interested in. The slow blow or fast blow is about how the fuse can handle momentary surges, usually when things power on such as capacitors in power supplies which momentarily draw a ton of current.
I think for older cars you use fast blow as has been mentioned.
Simon