8340-T120-K1M2-ALH126-8A

Series:	8340-T
Part Status:	Active
Breaker Type:	Magnetic (Hydraulic Delay)
Current Rating:	8A
Voltage Rating - AC:	240V
Voltage Rating - DC:	80V
Number of Poles:	2
Actuator Type:	Lever
Illumination:	None
Illumination Voltage (Nominal):	--
Mounting Type:	DIN Rail

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Introduction

Circuit breakers are electrical devices used to control and protect circuits from damage due to short circuits, overloads, and other potentially hazardous events. The 8340-T120-K1M2-ALH126-8A circuit breaker is one such device designed to provide power management and protection for an electrical distribution system. In this article, we will discuss the application fields and working principle of this particular circuit breaker.

Application Field

The 8340-T120-K1M2-ALH126-8A circuit breaker is designed for use in high-voltage, high-current applications. It is used in residential and industrial electrical systems to protect equipment from overloading or short circuiting. It can also be used in substations and power distribution systems to protect the entire system from malfunction or damage.

Working Principle

The 8340-T120-K1M2-ALH126-8A circuit breaker operates on an electro-mechanical principle. When an overload or short circuit is detected, a set of contacts within the circuit breaker will open, cutting off the circuit and protecting it from further damage. The contacts in the circuit breaker are set to detect a pre-defined amount of current passing through the circuit and will open when this threshold is exceeded. The contacts will open quickly, limiting the current and protecting the circuit from further damage. After the current is cut off, the contacts can be reset manually or remotely to restore power to the circuit. The 8340-T120-K1M2-ALH126-8A circuit breaker also has a secondary protection feature to protect against overloads. A thermal element or resistor is installed in the circuit breaker and when the current exceeds a certain limit, the resistor will heat up, causing the contacts to open. The resistor will then cool off and the contacts will reset automatically.

Conclusion

The 8340-T120-K1M2-ALH126-8A circuit breaker is an efficient and reliable way to provide power management and protection for an electrical distribution system. Its applications span both residential and industrial applications and it is designed to protect equipment from short circuits and overloads. Its operating principle is electro-mechanical with contacts that open when a certain threshold is exceeded and a secondary protection element that will open the contacts in the event of an overload.

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