Connect the fuse to the negative terminal of the battery since it's where the actual flow of electrons originate which is opposite to the conventional flow of current from the positive terminal.
Connect 2 fuses, one at the positive and one at the negative battery terminals. Also, during my research, i came across a post that advised to connect a fuse at the positive terminal since it would protect both circuit and the battery, but if the fuse is connected to the negative battery terminal, then it only protects the battery.
Should a fuse be connected to a negative battery terminal?
Connect two fuses, one at the positive and one at the negative battery terminals. Also, during my research, I came across a post that advised to connect a fuse at the positive terminal since it would protect both circuit and the battery, but if the fuse is connected to the negative battery terminal, then it only protects the battery. Is this true?
Since the negative terminal of the battery is normally considered "Ground" or "Zero Volts", a fuse in the negative lead would leave the rest of the circuit "hot" - usually Not a Good Thing. Recommended practice is to place the fuse near the positive terminal of the battery, so the whole circuit will be dead if the fuse blows.
How do fuses work on a car?
Figure 1c is the way most vehicles are wired with a negative connection to the chassis. The fuses are placed in the positive lines from the battery and close to the battery. If a fault occurs on the line between the fuse and the load the fuse blows and current flow stops.
What is the purpose of a fuse?
The fuse is there to prevent a fire if a short circuit should occur. Some part of your circuit is considered "ground". It is a common connection for your battery and the rest to f the circuit. You would normally fuse the "non-ground" lead, or the positive lead of the battery. Paul Let's say you use Fuse B.
The direction of current flow has next to nothing to do with where the fuse goes. Also, take a look at your car electrical system some day. The fuses are all in the positive side on negative chassis vehicles. The reason is explained in the answers above.