In electrical circuits, how are fuses typically connected?

Fuses are typically connected in series with the load to ensure that the entire circuit is protected from overcurrent conditions. When a fuse is placed in series, any excess current that exceeds the fuse's rating will cause the fuse to blow, interrupting the flow of electricity. This safeguard prevents damage to the load and reduces the risk of fire or equipment failure.

When connected in series, the current flowing through the circuit also flows through the fuse; therefore, if the current exceeds the designed limit, the fuse reacts by breaking the circuit. This functionality is key for maintaining safety in electrical systems.

In contrast, if a fuse were connected in parallel with the load, it would not effectively protect the load, because the load would still receive the current even if the fuse blew. This makes the series connection the only viable option for ensuring reliable protection against overloads in the circuit.