Overcurrent protection circuits are designed to prevent excessive current flow in electrical systems, which can lead to overheating and damage. These circuits typically use devices like fuses or circuit breakers that interrupt the current when it exceeds a predetermined level, ensuring the safety and longevity of electrical equipment. When an overcurrent condition occurs, the protective device activates, cutting off the electrical supply. This action helps to safeguard not only the equipment but also the entire electrical system from potential hazards such as fires or short circuits. Properly designed overcurrent protection is essential for reliable and safe electrical operation.