Circuit protectors, also known as FUSES (5 letters), are devices that protect electrical circuits from damage due to overloads or short circuits. They are designed to detect a fault condition and quickly interrupt the current flow, thereby preventing damage to the circuit. FUSES are usually made of metal and contain a wire or strip that melts when too much current passes through it, thus breaking the circuit. FUSES are an important part of any electrical system, as they help to prevent fires and other hazards.