1170-21-8A

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The 1170-21-8A circuit breaker is designed to provide protection against overcurrents, and to ensure the safe operation of electrical systems. It is rated for currents up to 1000A, and it is suitable for use in a variety of applications, such as residential, commercial, and industrial applications. It is an ideal choice for providing protection from short-circuits and overloads, and it is also used in applications that require a high level of current carrying capacity.

The 1170-21-8A circuit breaker is designed to provide protection against overcurrents by cutting off the power when a circuit exceeds the rated current, thus protecting any associated devices or circuits. This is done by the breaker detecting an overcurrent and then opening the contacts of the circuit. This causes the current to cease, thus preventing further damage to the system. The breaker then remains open until the problem is resolved and the power is restored.

The 1170-21-8A also offers another important feature, which is its ability to reset or trip itself operable after a fault or overload occurs. This resetting action is known as auto-reclosing, and it involves the breaker tripping itself true, completing the circuit, and then resetting itself for safe operation.

The 1170-21-8A circuit breaker also features a test switch which is used to verify that the breaker is functioning properly. This is done by engaging the test switch and then performing a series of tests. The tests will consist of checking the continuity of the circuit, including the contact closure, as well as ensuring the correct operation of the overload protection. If any issues are detected during the test, the breaker will immediately trip, so that the system can be corrected.

The 1170-21-8A circuit breaker also features an adjustable trip setting. This allows the user to adjust the trip setting based on the specific application, as well as the maximum current that is expected to flow through the circuit. This helps to ensure that the circuit is not overloaded, and that the breaker will trip at the correct time.

In addition to detecting overcurrents, the 1170-21-8A circuit breaker also offers protection against short-circuiting. Short-circuiting occurs when current flows through the circuit in an unexpected manner, resulting in a large surge of current which can cause damage to the system. The 1170-21-8A breaker is designed to detect this surge and then open the contacts, thus preventing further damage.

In summary, the 1170-21-8A circuit breaker is an ideal choice for providing protection against overcurrents, and it is suitable for a wide variety of applications. It features an adjustable trip setting and a test switch, as well as protection against short-circuiting, which helps to ensure that the circuit is protected from unexpected surges in current.

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