209-1-1REC4..ER008040-7 Circuit Protection

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Circuit breakers are essential components of any electrical system. They perform the important function of controlling current, protecting components from overload and short-circuit. 209-1-1REC4..ER008040-7 is a type of circuit breaker, and it has certain unique features that make it well suited for certain application fields. This article will discuss the application field and working principle of the 209-1-1REC4..ER008040-7.

Application Field

The 209-1-1REC4..ER008040-7 circuit breaker is designed primarily for low voltage circuits. It is typically used in industrial power distribution circuits and is suitable for AC or DC up to 600V. Additionally, this breaker is classified by UL and CSA to UL489 standard and is suitable for use in NEMA and IEC AC systems.

The 209-1-1REC4..ER008040-7 is a two-pole circuit breaker which means it can protect two independently powered circuits at once. This makes it useful for industrial power distribution applications as it can provide additional safety and circuit protection. Additionally, this breaker also has an adjustable trip current range, which allows for precise control of the circuit’s current levels. The trip current range can be adjusted from 5A to 50A.

Working Principle

The 209-1-1REC4..ER008040-7 circuit breaker employs the thermal-magnetic principle for current protection. The principle is based on heat generated by the current flowing through the bimetallic elements inside the breaker. When the current exceeds the breaker\'s set trip current, the heat generated by the current causes the bimetallic element to bend, which in turn causes the contacts of the breaker to open and disconnect the circuit.

The 209-1-1REC4..ER008040-7 circuit breaker also has an electronic trip system, which monitors the circuit for dangerous overcurrent. When the current surpasses the breaker’s trip level, the breaker will trip instantaneously and disconnect the circuit. This is advantageous as it eliminates the need for manual resetting in case of an overcurrent. The breaker can also be configured to trip at different levels depending on the application.

In addition to the basic thermal-magnetic protection, the 209-1-1REC4..ER008040-7 also has several additional features. The breaker is capable of sensing line residual current, which helps to minimize the risk of an electric shock in case of a circuit fault. The breaker is also designed to reduce the risk of arc flash and can withstand voltage surges up to 2000V.

Conclusion

The 209-1-1REC4..ER008040-7 is a two-pole circuit breaker designed for low voltage applications. It is classified to UL489 standard and is suitable for NEMA and IEC AC systems. The thermal-magnetic protection and adjustable trip current range make it well suited for use in industrial power distribution circuits. Additionally, the breaker has additional features such as line residual current sensing, arc flash and surge resistance, making it a reliable and versatile circuit breaker.

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