R21-42-17.5A-B161CH-S

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Circuit breakers are a type of switching device used to control, protect and monitor circuits. They are designed to protect against overloading and short-circuit conditions. One of the most common and versatile types of circuit breakers is the R21-42-17.5A-B161CH-S. In this article, we will discuss the application field and working principle of the R21-42-17.5A-B161CH-S circuit breaker.

The R21-42-17.5A-B161CH-S circuit breaker is a two-pole, three-pole rated circuit breaker, rated for a maximum current of 17.5 Amps. This breaker is most commonly used in residential, industrial and commercial applications, and is suitable for a wide range of applications including load centers, panelboards, commercial buildings, motor control and other similar applications.

The R21-42-17.5A-B161CH-S circuit breaker features an electromagnetic operating system, which is designed to detect and interrupt short-circuit and overload conditions. When an overload or short-circuit condition is detected, the breaker will trip and interrupt the current flow in the circuit, thereby preventing damage to any electrical devices connected to the circuit. Moreover, the breaker also features a manual reset feature, which allows the user to reset the circuit breaker without having to power down the system. This feature makes the R21-42-17.5A-B161CH-S ideal for applications that require a reliable reset feature.

In addition to the overload and short-circuit protection described above, the R21-42-17.5A-B161CH-S circuit breaker also features a number of other features which make it suitable for a wide range of applications. For example, it features an adjustable trip setting, which allows the user to set the trip current level of the breaker in order to prevent excessive current draw. It also features shunt trip and ground fault protection, which provide additional fault protection for applications with extremely high voltage or current levels. Finally, the breaker also features a short-circuit interruption capacity of up to 10KA rms current.

The R21-42-17.5A-B161CH-S circuit breaker is an ideal choice for a wide range of applications. Its robust electromagnetic operating system and adjustable trip setting allow it to provide reliable overload and short-circuit protection, while its shunt trip and ground fault protection make it suitable for extremely high voltage or current applications. Furthermore, the breaker also features a manual reset feature, which allows the user to reset the circuit breaker without having to power down the system.

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