8340-F120-K4M1-E2H0-12A Circuit Protection

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Circuit breakers are vital components of any electrical system. As power demand changes, circuit breakers provide an automatic way to control the flow of electricity and protect electrical circuits from damage. The 8340-F120-K4M1-E2H0-12A circuit breaker is no exception, so let’s take a closer look at the application field and working principle of this particular model.

Application Field

The 8340-F120-K4M1-E2H0-12A is a UL489, Type 4, 40A circuit breaker with a 1-pole design. It is highly suitable for use in a wide variety of domestic and commercial settings, particularly in places where it is important to provide reliable, constant protection for electrical systems. For example, it is often used in schools, hospitals, warehouses, and other places where power outages could be dangerous or have disastrous results.

Thanks to its rugged design, the 8340-F120-K4M1-E2H0-12A is also suitable for use in a wide range of industrial settings. It especially excels in settings that require robust current protection, such as oil refineries, chemical plants, and other places where electrical equipment is subject to extreme conditions. Due to its superior design and high-performance components, the 8340-F120-K4M1-E2H0-12A is also a popular choice in marine applications, especially when heavy currents are present.

Working Principle

The 8340-F120-K4M1-E2H0-12A features a single-pole design, which means that it has two tripping screws. Each screw controls a separate circuit. When the current flowing through the circuit exceeds its rating, the trip mechanism is activated, causing the two screws to close. This results in the circuit breaker “tripping” and cutting off the power to the circuit.

The circuit breaker also includes a shutoff switch, which is used to reset the circuit after a trip. This switch is usually located on the back of the unit or on the front panel. When the power is restored, the switch must be turned on to reset the circuit.

Aside from its automatic di4function, the 8340-F120-K4M1-E2H0-12A also incorporates thermal-magnetic protection. This technology helps to protect circuits from short circuits and thermal overloads. It works by monitoring the temperature of the circuit, and if the temperature exceeds a user-defined level, it will automatically cut off the power.

The 8340-F120-K4M1-E2H0-12A is also designed to be highly reliable and durable. Its trip mechanism has been tested to comply with IEC 60947-2 and UL 1077 standards. This means that it can withstand currents in excess of its rating without tripping or losing its protection.

Conclusion

The 8340-F120-K4M1-E2H0-12A circuit breaker is a highly reliable and durable device. Thanks to its robust design and superior components, it is suitable for use in a wide range of domestic, commercial, and industrial settings. Moreover, its single-pole design, thermal-magnetic protection, and ability to withstand extreme conditions make it an ideal choice for use in places where power outages could be dangerous.

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