991305 Circuit Protection

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Circuit breakers, which are designed to prevent shock or product damage due to electrical overload or shorts, are more commonly used today than ever before. There are several types of circuit breakers that are used in various applications. This article will examine the workings and application fields of the 991305 circuit breaker.

The 991305 is an air circuit breaker with trip free protection, meaning that it will automatically trip when an overcurrent is detected. The 991305 has a voltage rating of 600 volts and an interrupting capacity of 125 Amps. This breaker is used in residential and commercial applications, such as power distribution and machine controls. It is suitable for protecting lighting, heating, and air conditioning circuits. It is also UL Listed and CSA Certified.

The working principle of the 991305 circuit breaker is fairly simple. When an overload or short-circuit is detected, a magnetic field is created which trips the breaker and disconnects the power supply. The 991305 features a trip-free mechanism which allows the breaker to be reset without having to manually trip the breaker first. This is done by simply pressing the reset button.

The 991305 is also equipped with a range of protection features to ensure safe and reliable operation. It has an adjustable trip setting, so that it can be programmed to trip at a desired overload current setting for that particular branch of supply. It also has a current limiting feature that will limit the maximum allowed current draw from the supply.

Another important feature of the 991305 circuit breaker is its thermal-magnetic operation, which means that it will trip at a certain temperature over a certain current, depending on the trip rating of the breaker. This is important for providing overcurrent protection and preventing overheating of electrical components. This feature is especially useful for controlling the supply current for high-end motor loads.

Overall, the 991305 circuit breaker is a reliable and efficient circuit breaker that is suitable for residential and commercial applications. Its range of protection features, trip-free mechanism, and thermal-magnetic operation make it a safe and dependable choice. This breaker is UL Listed and CSA Certified, so it is a good choice for many different applications.

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