203-13-9908-1

Circuit Breakers

The 203-13-9908-1 is a type of circuit breaker, and it is the most widely used form of protection against overloads and short-circuits in electrical systems. It is used in electrical systems, such as those found in homes, businesses, factories, and industrial facilities. It is an essential component for the safety of an electrical system as it can interrupt, or break, an electrical current during a fault, thereby protecting people and property from harm.

Application Field

Circuit breakers come in a variety of shapes and sizes and are used in a range of different applications. The 203-13-9908-1 is typically used in medium voltage distribution systems, including those found in commercial, industrial, and institutional buildings. The breaker is also suitable for residential and domestic applications, such as in homes and apartments. It is also used in transportation applications, such as railway or bus systems. The breaker is UL Listed, and has a dielectric voltage rating of 20kV and an interrupting rating of 50kA.

Working Principle

The 203-13-9908-1 is a type of circuit breaker with two basic parts: the contactor and the tripping device. The contactor is the part that connects and disconnects the electrical circuit; when the contactor closes, current is allowed to flow. The contactor is designed to open and close smoothly and quickly, protecting the electrical system from power surges or overloads. The tripping device detects any fault in the circuit and then triggers the contactor to open, interrupting the circuit. This trips the breaker, protecting both the electrical system and any people nearby.

The 203-13-9908-1 also features a thermal-magnetic operating principle. This is based on the idea that if the current flowing through the breaker exceeds the rating, then the temperature of the metal will increase. This in turn will increase the resistance of the metal, resulting in the current needing to work harder to flow through it. At a certain point, the increased resistance will trigger the tripping device, which then opens the contactor and trips the breaker.

The 203-13-9908-1 is a versatile and reliable circuit breaker and is widely used in medium-voltage electrical systems. It is UL Listed, and has a dielectric voltage rating of 20kV and an interrupting rating of 50kA. Furthermore, it features a thermal-magnetic operating principle and is suitable for use in residential, commercial, industrial, and transportation applications.