219-2-4581-1 Circuit Protection

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Circuit Breakers

Circuit breakers are devices used to protect electrical wiring from damage caused by over-current or short circuits. A circuit breaker is an automatically-operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its basic function is to detect a fault condition and, by interrupting continuity, to immediately discontinue electrical flow. This action is accomplished by separating the contacts in the device, interrupting the circuit. While circuit breakers are available in a variety of shapes and sizes, with an array of different features, functions, and ratings, all are designed to perform the same function.

219-2-4581-1 Application Field and Working Principle

The 219-2-4581-1 circuit breaker is used to protect medium-voltage circuits. Its rated voltage is 2362V, and its rated current is 20A. The 219-2-4581-1 is an AC circuit breaker with double-polarity design, equipped with a molded-body operating mechanism and an overvoltage feature to protect the circuit.

The working principle of the circuit breaker is based on the electromagnetic principles of attraction and repulsion. When a fault or overload occurs, a magnetic field is generated within the circuit breaker. This magnetic field causes the movable contacts in the circuit breaker to move away from the stationary contacts, interrupting the circuit.

The 219-2-4581-1 circuit breaker is designed with safety features to protect equipment from overloads and short circuits. These features include an adjustable trip current, an external trip lockout to prevent breakers from tripping without proper authorization, and an overvoltage protection feature. Adjustable trip current allows the user to set a specific level of current flow that will result in the circuit breaker tripping, providing a protective layer between equipment and hazard. The external trip lockout ensures that the circuit breaker cannot be remotely reset without authorization.

When the current in the circuit increases beyond the trip current setting, the armature in the circuit breaker will move and separate the contacts of the breaker, causing an interruption of current flow. The overvoltage protection feature of the 219-2-4581-1 circuit breaker will work when the voltage in the circuit exceeds the operating voltage. The breaker will then open, providing protection from electrical overload or short circuit.

The 219-2-4581-1 circuit breaker is an important component in medium-voltage circuits, providing safety, reliability, and efficiency. Its features make it an ideal choice for protecting critical equipment against electrical overloads and short circuits. The adjustable trip current, external trip lockout, and overvoltage protection ensure that the circuit breaker will work as intended, keeping equipment safe from damage.

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