What devices are commonly used in place of fuses in industrial power distribution systems?

In industrial power distribution systems, circuit breakers are commonly used as a substitute for fuses due to their ability to provide more advanced protection and convenience. Unlike fuses, which must be replaced after being blown, circuit breakers can be reset after tripping, allowing for continuous operation without the need for replacement parts.

Circuit breakers are designed to interrupt the flow of electricity in a circuit when an overload or short circuit occurs, thereby protecting equipment from damage. They can be manually reset, making them advantageous in facilities that require minimal downtime and quick restoration of electrical service.

Furthermore, circuit breakers often incorporate additional features such as adjustable trip settings and the ability to accommodate multiple functions, such as overload protection and ground fault protection, which enhances overall system safety and functionality. This versatility is particularly significant in industrial environments where the load conditions can vary greatly.

Other devices like relays, resistors, and switches do not fulfill the same protective role as circuit breakers concerning overcurrent and short circuit protection. They serve different functions in an electrical system, thereby reinforcing why circuit breakers are the preferred choice in these applications.