B21-2-.750A-06-11AL-V

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Circuit breakers are an important part of electrical systems, and are used in almost all electrical applications, from low voltage power distribution to high voltage power transmission. The B21-2-.750A-06-11AL-V is a particular type of circuit breaker, designed to protect and control electrical circuits. This article will look at the core features and components of this particular circuit breaker, and how it works.

Features of the B21-2-.750A-06-11AL-V

The B21-2-.750A-06-11AL-V is a high performance circuit breaker, with a number of different features to make it suitable for a wide range of applications. This breaker is rated to handle currents up to 750A, making it suitable for high power circuits. In addition, it has a short circuit current rating of up to 21kA, meaning that it can safely protect circuits from the most extreme short circuit conditions.

The B21-2-.750A-06-11AL-V also has a number of convenience features, including a push to trip button, allowing manual override of the breaker in the event of an emergency. It also has a visual indicator to show when the breaker is open or closed. Additionally, it is approved to UL 489 standard, meaning it is suitable for a wide range of commercial, industrial and residential applications. In particular, this breaker is an excellent choice for indoor and outdoor applications, thanks to its rugged construction and ability to withstand the elements.

Components

The B21-2-.750A-06-11AL-V is composed of a number of components, each designed to ensure safe and reliable operation. The main component of the breaker is the tripping mechanism, which is responsible for sensing abnormal currents and securely cutting off the power supply. The trip mechanism uses current transformers to measure current, and can be adjusted to trip off at different levels.

The breaker also includes other components such as an enclosure to protect its internal components, a handle to turn the breaker off and on, and a blade to connect to power supply lines. Additionally, the breaker includes a number of auxiliary contacts, which can be used to control external devices such as alarms, lights, and other power circuits.

Working Principle

The working principle of the B21-2-.750A-06-11AL-V is relatively simple. When the circuit is closed and energized, the current travels through the breaker. As long as the current remains within the rated limits, the breaker will continue to provide reliable protection. However, if the current exceeds the rated limits, the trip mechanism will detect the fault and immediately cut off the power, thus providing protection from possible damage.

The breaker can also be manually tripped in the case of an emergency, using the push to trip button. When the button is pressed, the trip mechanism will cut off the power, even if the current is within the rated limits. This ensures that the circuit can be safely turned off, even in the event of an emergency.

Conclusion

The B21-2-.750A-06-11AL-V is a high performance circuit breaker, which is suitable for a wide range of applications. Thanks to its robust construction, high current ratings and manual override capability, this breaker is suitable for both indoor and outdoor use, in both commercial and residential settings. It is composed of several components, including a tripping mechanism, an enclosure, a handle and auxiliary contacts, and it operates by sensing over-currents and cutting off the power supply.

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