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HomeUncategorized5 Reasons to Choose Circuit Breakers over Fuses

5 Reasons to Choose Circuit Breakers over Fuses

As the cost of a fuse is typically much lower than a circuit breaker, fuses have often been the choice for this application. However, with the advancements in technology, circuit breakers have become more prevalent in recent years due to their many advantages. Comparing modern circuit breakers to fuses reveals how circuit breakers can help machine manufacturers and facility management teams achieve greater safety and reliability, lower costs, and support for energy management initiatives.

1.Consistent performance

A circuit breaker is a device that automatically interrupts the flow of electricity in a circuit in case of an overload or short circuit. This protects the circuit from damage and prevents fires. Fuses are similar devices, but their performance can degrade over time, causing them to open during normal conditions. There is no way to test a fuse, so you will never know the exact current value that will cause it to open. In contrast, circuit breakers are tested during manufacture and can also be retested during their operating life to ensure performance is maintained.

2.Extended protection

Circuit breakers provide a number of advantages over fuses, including higher breaking capacity, faster trip time under overload conditions, and better fault current limitation. This not only supports reliable protection, it also reduces asset aging and extends service life. Another advantage of circuit breakers is that they will always break all three phases simultaneously, whereas with fuses it is common for only one fuse to open, causing a motor to continue running on two phases and potentially experience an overload.

3.Enhanced safety and uptime

Circuit breakers are a much safer option than fuses, especially for unskilled workers. With circuit breakers, the connections are hidden behind the device and operation can be done remotely, which eliminates the risks associated with exposed conductors. Additionally, replacing fuses takes more time than simply reclosing a breaker, so circuit breakers help minimize downtime and production losses.

4.Cost savings

Fuses are cheaper than circuit breakers when purchased individually. However, total installation costs must be considered when making a decision about which to use. Factors such as the need for three fuses in a three-phase circuit and the lack of built-in switching capability in fuses, as well as the fact that they require a larger enclosure due to heat dissipation; can make the overall cost of using fuses greater than that of circuit breakers. Additionally, when one fuse opens, all three must be replaced, meaning that an expensive replacement stock of fuses must be kept on hand. In contrast, occasional replacement of circuit breakers may be necessary but a single model of breaker can usually suffice for different power ratings, minimizing inventory.

5.Greater functionality

Circuit breakers are a vital part of any electrical system. They protect against overloads and shorts, and can be enhanced with additional features like ground fault protection. Circuit breakers also allow for coordination between different parts of the electrical system. The newest, most advanced circuit breakers offer a wide range of capabilities in a compact size with flexible designs that make it easy to upgrade them in the field. Add-ons like remote control and status indication, alarm and auxiliary contacts, power and energy measurements, and network communications make circuit breakers an even more essential part of any electrical system.

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