
Square D Breakers

Square D circuit breakers are devices designed to protect electrical systems from damage caused by excess current. They are known for their durability and reliability, and are commonly used in residential, commercial, and industrial applications.
One type of Square D circuit breaker is the Miniature Circuit Breaker (MCB), which is designed to protect low voltage circuits from overloads and short circuits. These breakers are available in different sizes and trip curves, depending on the application.
Another type of Square D circuit breaker is the Molded Case Circuit Breaker (MCCB), which is designed for higher voltage and current applications. MCCBs are used in a wide range of applications, including industrial machinery, marine vessels, and large buildings.
Products
Fuses are safety devices that are intended to provide protection to both equipment and people in the event of a power surge or an overcurrent situation. A fuse can provide this protection by using a small piece of wire that is sacrificial, and is intended to burn up when too much current is passed through it. When this happens, the fuse eliminates the flow of electricity in that circuit until it is replaced. The size and type of wire that is used in the fuse will dictate how much current can pass through that individual fuse. So the main thing to remember is, when a fuse blows, it must be replaced and cannot be reused.
Circuit breakers are intended to be reused after they are “tripped” during a power surge or an overcurrent situation. Much like fuses, circuit breakers are designed to trip at a certain current level. This is intended to protect both equipment and anyone in the area of that particular circuit. Circuit breakers can be found in just about any variation from single phase, low current applications to three phase, and high current applications.
As a general rule: fuses are more simplistic and reliable. They cost less initially and are better suited for individual circuit protection. However, they can create more cost over time with each use and may create hazards due to the exposed connection points. Whereas circuit breakers offer better branch circuit protection and do not need to be replaced after each use. They are more expensive initially and, because of their complexity, are more prone to failure over time.