IELBXK2-70009-3-V

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A circuit breaker is a tool utilized to protect electrical systems, machines or equipment from damage caused by excess current or overloads. The IELBXK2-70009-3-V is a circuit breaker designed to provide protection for both over-load and short circuit currents by providing an automatic, manually-operated cut off over-load and short circuit currents. It is rated for 277/480 volt AC operation and is specifically designed to be used with the IELBK2-70009-3 switchgear.

The IELBXK2-70009-3-V\'s application field is primarily in locating in the indoor places with an ambient temperature of 40-degree Celsius, for the circuit of AC 440V. It is suitable for circuits with the rated current up to 4000 Amps and can handle the instantaneous overload up to the generator\'s limit temperature rise. It has the motor protection capability of IEC60947-2, an adjustable short circuit trip, and a disconnect rated for 60,000A.

The IELBXK2-70009-3-V\'s working principle can be explained by how it operates. The circuit breaker has a trip button that will cause it to trip when the motor has been running too long or the current is too high, thus protecting the circuits and power supply. In the event of an overload, the contact points inside the breaker will heat up due to the increased current. At a certain temperature, the bi-metallic strip in the breaker will be pulled away from the contacts, opening the circuit and preventing further current flowing. The breaker will then need to be reset, either manually or automatically.

In the case of a short-circuit, the high current will cause the breaker to trip much faster than with an overload. It does this by using an arc detection system which senses the current. When the current rises above a certain level, a carbon rod within the breaker will be heated by the arc current, causing a spring-loaded mechanism to trip the breaker quickly protecting the wiring.

The IELBXK2-70009-3-V provides excellent protection for indoor circuits, without any of the added cost of an external device or the need for manual adjustments. This makes it an excellent choice for any application where a fast and reliable circuit breaker is desired.

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