8RBA4-400E

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Part Status:	Active

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Introduction

Fuses are important components used in various electronics, appliances, and other devices to protect the circuits from over current and short circuit. The 8RBA4-400E is a popular type of fuse commonly used in home and industrial applications. This article will discuss the application fields and working principles of the 8RBA4-400E.

Application Fields of 8RBA4-400E

The 8RBA4-400E is a motor protection fuse which is designed for use in high amperage industrial motors. It is also suitable for use in motor starters or control circuits which are powered by larger generators or motors. This fuse is also commonly used in AC/DC motor control panels when a high-current switch is used. In residential applications, the 8RBA4-400E is typically used in circuit breakers or main distribution panels. This type of fuse is also used in automotive applications such as starter motors or fuel pumps.

Working Principles of 8RBA4-400E

The 8RBA4-400E is a thermal fuse that utilizes a metal strip as its operating element. When the current flows through the metal strip, it heats up. As the amount of current increases, the metal strip heats up faster and eventually reaches its melting point. Once the melting point is reached, the fuse breaks, disconnecting the circuit and protecting it from further damage. The 8RBA4-400E also has a current rating of 400A and can withstand temperatures up to 480° C. The fuse has a voltage rating of 690V DC and can handle a peak surge of 15.5kA at a nominal time of 2 seconds. The 8RBA4-400E is designed to be durable and reliable, providing protection against over current and short circuits. In the event of an over current, the 8RBA4-400E will protect the circuit by breaking the connection in a controlled manner. The fuse will not reset itself, which means that it must be replaced in order for the circuit to be operational again.

Conclusion

The 8RBA4-400E is a highly reliable and durable motor protection fuse which is suitable for use in industrial and residential applications. It is designed to protect circuits from over currents and short circuits by breaking the connection in a controlled manner. This type of fuse has a current rating of 400A and can withstand temperatures of up to 480° C. The 8RBA4-400E is a popular choice for motor starters, control circuits, and industrial motor protection applications.

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