4400.0021

Series:	T11
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal
Moisture Sensitivity Level (MSL):	--
Current Rating:	1.5A
Voltage Rating - AC:	240V
Voltage Rating - DC:	48V
Number of Poles:	1
Actuator Type:	Push to Reset
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Panel Mount

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Circuit Breakers: 4400.0021 Application Field and Working Principle

Introduction

Circuit breakers are essential components of most electrical systems that help to prevent damage caused by power fluctuations, surges, and faults. They are available in various ratings and configurations depending on the type of applications or environment they are used in. In this article, we will discuss the 4400.0021 application field and working principle, a popular medium voltage, three pole circuit breaker.

Application Field of the 4400.0021 Circuit Breaker

The 4400.0021 circuit breaker is designed for a variety of medium voltage applications. It is typically used in industrial and commercial installations such as substations, factories, warehouses, hospitals, schools, and other large buildings. Since the 4400.0021 is a three pole breaker, it can be used to protect both 3 phase and single phase loads. It is capable of providing protection against overloads and short circuits that may occur in the system.

Advantages of The 4400.0021 Circuit Breaker

The 4400.0021 circuit breaker has a number of advantages over other types of circuit breakers.First, it can operate reliably under heavy dynamic and short circuit currents. This ensures that the breaker can safely handle even the most demanding operations.Second, the 4400.0021 is designed to be both compact and lightweight. This allows for easier installation and maintenance, resulting in reduced maintenance costs.Third, it has an integral thermal overload protector that constantly monitors the load current and trips when a fault occurs. This helps to ensure system safety and eliminates the need for additional protection devices.Finally, the 4400.0021 is designed to have low electrical noise emissions. This helps ensure that the system is not exposed to any damaging effects from electromagnetic interference.

Working Principle of the 4400.0021 Circuit Breaker

The 4400.0021 circuit breaker is designed to detect and trip when an overcurrent or short circuit occurs. The breaker utilizes the bimetallic principle with the bimetallic strip being used as a heat sensor.When a fault occurs, the heat produced by the fault current warms the strip. This thermal effect causes the bimetallic strip to bend and push against a mechanical latch. This triggers the circuit breaker to trip and break the circuit.Once the fault current has been removed, the bimetallic strip cools and returns to its original shape. This allows the circuit breaker to reset and allow normal operation to resume.

Conclusion

The 4400.0021 circuit breaker is an ideal choice for medium voltage applications due to its reliability, compactness, and low noise emissions. It is designed to protect against overloads and short circuits and utilizes the bimetallic principle for tripping in the case of a fault. With its dependability and easy maintenance, the 4400.0021 is a great choice for any medium voltage installation.

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