299-3-1-66-5-8-5

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Circuit Breakers

A circuit breaker is an important device used in power systems, and both residential and industrial areas for protecting the wiring, electrical equipment and machines. It is designed to prevent an overload or a short circuit as it interrupts the electric current when overloaded and allows it back on when the situation is rectified.

299-3-1-66-5-8-5 Application Field and Working Principle

Circuit breaker 299-3-1-66-5-8-5 is usually used in remote locations such as service entrances, sub-panels, and panelboards. It comes with a three pole, fifteen amp rating and a rating of sixty-six thousand volts. It features maximum current protection of fifty-eight kA in amperes.

Regarding the working principle of a 299-3-1-66-5-8-5 circuit breaker, it works by tripping or ejecting when an overload is detected. This ejection takes place when the magnetic field of the electric current passing through the breaker releases a retractable lever mechanism. This mechanism lets the breaker trip to cut off the power. When tripped, the breaker can be reset with a reset switch.

The self-trip mechanism of this type of circuit breaker is usually coupled with a thermal-magnetic trip unit. This unit features two independent protective systems – the thermal protection and the magnetic one – which provide superimposed protection, thus tripping immediately when the current overloads the circuit.

The magnetic field trips the breaker as it increases in attempt to reduce the heat safety from the wiring, while the thermal element also trips the breaker as a safety measure when the temperature of the current exceeds the pre-set threshold.

In addition to the self-trip mechanism and thermal-magnetic unit, a 299-3-1-66-5-8-5 circuit breaker can also be operated manually. It is equipped with a handle that will immediately interrupt the electric current when pulled, before the breaker trips itself.

Besides residential areas, 299-3-1-66-5-8-5 circuit breakers are frequently used in commercial applications. These can include lighting control systems, process applications, and motor control systems, where it is responsible not only for overload protection, but safety and switching operations as well.

Circuit breakers 299-3-1-66-5-8-5 are easy to operate and provide optimal protection from surges and overloads. For this reason, it is a popular choice among both consumers and commercial applications.

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