219-3-21242-6

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A circuit breaker is an electrical device that is used to protect electrical systems from damage due to overload, short circuit or ground fault. Circuit breakers are one of the most important components of electrical systems and are used in a wide range of applications from domestic to industrial. The 219-3-21242-6 circuit breaker is one such device that is used extensively in the electrical industry. This article provides an overview of the application field and working principle of the 219-3-21242-6 circuit breaker.

The 219-3-21242-6 circuit breaker is a three-pole, double-break device that is designed to be used in general and industrial electrical systems. It is designed to protect circuits from short circuits, ground faults and over current situations that can cause damage to the electrical system. This type of circuit breaker is most commonly used in residential and commercial applications. It is also suitable for medium-voltage applications in industrial contexts. The 219-3-21242-6 circuit breaker has an interrupting rating of 100 kA and can be used as a main or branch circuit breaker in medium-voltage applications.

The working principle of the 219-3-21242-6 circuit breaker is based on the thermal-magnetic overload protection principle. In normal operation, the thermal element consists of bimetal strips that are connected in series with the circuit. The current passing through the bimetal strips causes them to heat up and expand, which then causes the contacts to open and break the circuit. The magnetic element of the circuit breaker consists of a solenoid coil and an armature. The operation of the magnetic element is triggered by an increase in the current passing through the circuit and it causes the armature to pull upwards, which closes the contacts and breaks the circuit.

In addition, the 219-3-21242-6 circuit breaker also features a ground fault circuit interrupter (GFCI) to provide additional protection against ground faults. This GFCI is often used in areas that need extra protection against shocks from ground faults. The GFCI is designed to detect ground faults and to trip the circuit breaker before any damage can occur to the electrical system.

Overall, the 219-3-21242-6 circuit breaker is a versatile and robust device that can be used in a wide range of applications. It offers excellent protection against short circuits, ground faults and over current situations, making it suited to both residential and commercial applications. Moreover, its GFCI feature provides extra protection against ground faults, making it suitable for areas where safety is of paramount importance. The 219-3-21242-6 circuit breaker can be a reliable and economical choice for any electrical system.

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