- Current rating: The current rating of a fuse is the maximum amount of current that it can safely carry without blowing. This value is typically expressed in amperes (A) and is marked on the fuse card.
- Voltage rating: The voltage rating of a fuse is the maximum voltage that it can safely withstand without arcing over. This value is typically expressed in volts (V) and is marked on the fuse card.
- Interruption rating: The interruption rating of a fuse is the maximum amount of current that it can safely interrupt without causing damage to itself or the circuit it is protecting. This value is typically expressed in kiloamperes (kA) and is marked on the fuse card.
- Delay rating: The delay rating of a fuse is the amount of time that it takes for the fuse to blow after it has been subjected to an overload current. This value is typically expressed in seconds and is marked on the fuse card.
- Type: The type of fuse is indicated by a letter code, such as "A", "B", "C", or "D". This code indicates the fuse's characteristics, such as its speed of operation and its ability to withstand inrush currents.
