4404.0026

Series:	T9-311
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal
Current Rating:	14A
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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Introduction

Circuit breakers are essential components of any electrical system, as they serve to protect the system from unsafe conditions. Companies such as ABB have a wide variety of circuit breakers in their portfolio, so there are many different types and applications for circuit breakers. One such type of circuit breaker is the 4404.0026. In this article, we will discuss the application field and working principle of this device.

Application Field

The 4404.0026 is a medium-voltage(MV) circuit breaker that is suitable for systems up to 10MVA. It has been designed to be a versatile circuit breaker that can be used in a variety of applications. This device is most commonly used in power distribution systems as a load break switch, or a motor starter circuit breaker. It is also used in substations as a protective device, and in renewable energy systems as a switching system.

Working Principle

The working principle behind the 4404.0026 is based on a simple electrical theory. The circuit breaker consists of a coil and a coil spring. When the circuit is closed, the coil spring moves with the current, generating a magnetic field. When the current reaches a certain threshold, the magnetic field increases, causing the coil to pull the coil spring downward, which disengages the contacts and opens the circuit.

Conclusion

The ABB 4404.0026 is a versatile medium-voltage circuit breaker with a variety of applications. It is most commonly used in power distribution systems, substations, and renewable energy systems as a protective device or load break switch. The device works on the principle of a coil and a coil spring, where an increase in current causes the magnetic field to increase, which pulls the coil spring downward and disengages the contacts, thereby opening the circuit.

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