For higher current or voltage ratings, the fuse type typically used is

For higher current or voltage ratings, the fuse type typically used is

• A. Glass
• B. Fast-acting
• C. Subminiature
• D. Cartridge

Answer: (D)

When circuits carry higher current or voltage, the fuse must be able to interrupt a fault without arcing or failing to open. Cartridge fuses are designed for that demanding role: they come in larger, more robust bodies with end caps and insulation that withstand higher voltage across the gap and higher current, giving a greater interrupting (break) capacity. This makes them the standard choice for power distribution and equipment that require reliable protection at higher ratings. They are available in a wide range of current and voltage ratings and are commonly used in panels and feeders where space and protection needs are greater. Glass fuses are smaller and are typically used for lower current and voltage applications, where such high interrupting capacity isn’t required. Fast-acting fuses refer to how quickly they respond to a fault, not to higher ratings, so they don’t inherently provide the necessary protection for high-power circuits. Subminiature fuses are used where space is very limited and also tend to have lower ratings.

When circuits carry higher current or voltage, the fuse must be able to interrupt a fault without arcing or failing to open. Cartridge fuses are designed for that demanding role: they come in larger, more robust bodies with end caps and insulation that withstand higher voltage across the gap and higher current, giving a greater interrupting (break) capacity. This makes them the standard choice for power distribution and equipment that require reliable protection at higher ratings. They are available in a wide range of current and voltage ratings and are commonly used in panels and feeders where space and protection needs are greater.

Glass fuses are smaller and are typically used for lower current and voltage applications, where such high interrupting capacity isn’t required. Fast-acting fuses refer to how quickly they respond to a fault, not to higher ratings, so they don’t inherently provide the necessary protection for high-power circuits. Subminiature fuses are used where space is very limited and also tend to have lower ratings.