9921160005 Circuit Protection

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Circuit breakers are designed to protect electrical circuits from damage caused by overload. They are the most common form of circuit protection in residential, commercial and industrial electrical systems, and are made in a variety of sizes and ratings. The 9921160005 circuit breaker is a popular choice due to its ability to handle high-voltage applications. In this article, we’ll discuss the application field and working principle of the 9921160005 circuit breaker.

The 9921160005 circuit breaker is designed for medium to high-voltage applications, such as industrial and commercial electrical systems. It is suitable for applications ranging from 40A to 1000A and its voltage rating is up to 900V DC, making it suitable for a wide range of applications. The 9921160005 also has a built-in overload trip adjustment device and a lock-out mechanism that ensures safe operation. Additionally, it has a trip range of up to 40A and it is UL listed, so it meets the safety requirements of most applications.

The 9921160005 circuit breaker works by interrupting an existing current when the current exceeds the breaker’s amperage rating. The trip mechanism of the 9921160005 consists of a bimetallic strip that is moved by heat caused by the current. When the current causes the bimetallic strip to bend, it trips the breaker and disconnects the circuit. The amount of current needed to trip the breaker depends on the size and rating of the breaker as well as on the type of application.

Another important feature of the 9921160005 is its ability to withstand a certain level of continuous current without tripping. This is referred to as the “hold current” of the breaker and is typically set at the manufacturer’s stated trip point. This feature prevents minor overloads from tripping the breaker and allows the circuit to remain energized when needed. The 9921160005 also has a temperature-compensated operation that ensures that it will trip at the correct current.

Overall, the 9921160005 circuit breaker is a versatile and reliable piece of equipment, suitable for a wide range of applications. Its robust construction and temperature-compensated operation makes it an ideal choice for commercial, industrial and residential electrical systems. The 9921160005 has been tested and approved by UL, so you can rest assured that it meets the highest safety standards.

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