W57-XB2A99C10-4

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Circuit Breakers

A circuit breaker is an important device in electric power systems that can provide reliable protection against short circuit and overload faults. W57-XB2A99C10-4, a miniature circuit breaker manufactured by Rocky Electronics, is a great choice for applications with limited space and high breaking capacities.

Application Field

W57-XB2A99C10-4 circuit breakers are mostly suitable for the protection of normal distribution electric circuits in residential, commercial, institutional and industrial applications. Its one, two and three pole versions are available for alternating current use up to a rated operating voltage of 277 volts.

Thanks to its small size and light weight, it is a perfect choice for applications that require either unobtrusive design or simple installation. It supports both 1, 2 and 3 pole configurations, which makes it ideal for many applications. It offers a high breaking capacity of 10KA and is capable of tripping at typical current levels.

Working Principle

At the heart of this circuit breaker is a trip mechanism that uses current transformers to sense and adjust the arc current levels during operation. Under normal operation, the magnetic field generated by the current transformers enables the current to flow through the contacts. When the current reaches the trip limit, the circuit breaker trips and the contacts open, preventing further damage.

This type of circuit breaker also employs a thermal mechanism that is activated when the temperature reaches a certain level. This allows the circuit breaker to handle fault currents that are higher than the nominal current and prevents the device from being overloaded.

As with all circuit breakers, W57-XB2A99C10-4 must be properly installed and maintained in order to ensure its proper functioning. This includes periodic inspection, testing, and maintenance of the device according to the manufacturer\'s recommendations.

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