8345-SR0034-20A Circuit Protection

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Introduction

8345-SR0034-20A is a type of circuit breaker and is designed to protect electrical circuits from over-current and fault conditions, ensuring a safe and reliable operation of the system. This type of breaker is commonly used in many industrial and commercial applications, such as motor control, building automation, lighting control, security, heating and cooling, and more.

Circuit Breakers

Circuit breakers are devices that can quickly disconnect a circuit in the event of an overload or short circuit. They are classified into several categories, such as thermal magnetic breakers, Arc Fault Circuit Breakers (AFCB), and Ground Fault Circuit Interrupters (GFCI). These devices work by using heat, electromagnetism, or a combination of these two methods to detect and interrupt an overload or short circuit in a circuit.

8345-SR0034-20A Application Field and Working Principle

Application Field

8345-SR0034-20A circuit breaker is suitable for a variety of industrial applications such as control and protection of motors, lighting, industrial welding, and transformer protection. It also has a unique design that allows it to be installed indoors or outdoors.

Working Principle

The 8345-SR0034-20A circuit breaker utilizes both a thermal and magnetically operated mechanism for overload and short circuit protection. The thermal mechanism uses an internal heat sensitive element that physically expands when the current exceeds the rated amperage.When expansion occurs, a linkage actuates to open the breaker contact, thus interrupting the circuit. The magnetically operated mechanism uses a magnetic field generated by the current to trip the circuit breaker when the current exceeds a certain threshold. This field energizes an electromagnetic element, causing a contact or armature to pivot, thus opening the circuit breaker.

Conclusion

8345-SR0034-20A circuit breakers are designed for a variety of industrial and commercial applications. The breaker is able to protect against both over-current and short circuit conditions using a combination of thermal and magnetically operated mechanisms. This type of circuit breaker is reliable and easy to install for a wide variety of applications, making it a popular choice for many industries.

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