3120-F521-P7T1-W19KG4-5A

A circuit breaker is a type of electrical protection device that is used to protect people and property from electrical overheating incidents. 3120-F521-P7T1-W19KG4-5A is a type of circuit breaker and is widely used in various applications and industries. This article will discuss the application field and working principle of 3120-F521-P7T1-W19KG4-5A.

Application Field

3120-F521-P7T1-W19KG4-5A circuit breaker is a low voltage circuit breaker with a rated voltage of 650V and a rated current of 6A. It is mainly used in low voltage equipment such as amplifiers, computers, and transformers. It is also used in switching power supplies, AC power distribution systems, and lighting control systems. This type of circuit breaker is designed with a high breaking capacity, good wiring performance, reliable arc-extinguishing performance, and low power consumption. This makes it suitable for a variety of applications.

Working Principle

The working principle of 3120-F521-P7T1-W19KG4-5A circuit breaker is that it is activated by a thermal magnetic trip unit. The magnetic trip unit is triggered when there is an abnormality in the electrical current, or when the current exceeds the preset current limit. When the circuit breaker is tripped, an electrical arc is generated between the contacts of the circuit breaker. This arc is then extinguished by the use of arc-extinguishing plates, which are sandwiched between the contacts. The arc-extinguishing plates absorb the energy of the arc and dissipate it into the atmosphere, thus preventing further overheating. Finally, the contacts are automatically separated to completely interrupt the electrical current.

In addition, 3120-F521-P7T1-W19KG4-5A circuit breaker is designed with a mechanical indicator which ensures that the circuit breaker does not trip unless the current exceeds the maximum prescribed level. This ensures that the circuit breaker does not trip unknowingly, leading to downtime and production losses. The circuit breaker also has a reset feature which allows the user to reset it manually in case of a tripped circuit.

Conclusion

3120-F521-P7T1-W19KG4-5A circuit breaker is a low voltage circuit breaker with a high breaking capacity and reliable arc-extinguishing performance. It is mainly used in low voltage equipment such as amplifiers, computers, and transformers. It is also used in switching power supplies, AC power distribution systems, and lighting control systems. The working principle of the circuit breaker is that it is activated by a thermal magnetic trip unit, and an electrical arc is generated between the contacts of the circuit breaker which is extinguished by the use of arc-extinguishing plates. The circuit breaker also has a reset feature which allows the user to reset it manually in case of a tripped circuit.