219-3-25739-4

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Circuit breakers protect electrical circuits and equipment from damage caused by overcurrent, short-circuiting, and ground fault. The model number of 219-3-25739-4 is one of these circuit breakers, and its application field and working principle will be discussed in this article.

Application Field

The model number of 219-3-25739-4 circuit breaker is typically used in commercial and industrial applications. It is usually used in buildings, equipment, and distribution systems requiring protection against currents from 40 amperes to 2200 amperes. It can be used in 50 Hz or 60 Hz circuits. It is widely used in lighting, heating, air conditioning, motor, and many other circuits.

Working Principle

When a circuit breaker is energized, the contacts of the breaker move to the closed (on) position. This allows current to flow through the circuit. When the breaker detects an overload or short circuit, a spring-loaded mechanism trips the breaker, opening the contacts and interrupting the current flow. The trip mechanism includes a voltage sensing part to protect against voltage overload and a current sensing part to protect against current overload. The voltage sensing part will trip the breaker when a preset voltage is exceeded. The current sensing part will trip the breaker when a preset current is exceeded.

Other Features

Other features of the 219-3-25739-4 circuit breaker include single pole, thermomagnetic, adjustable trip settings, over voltage protection, over temperature protection, short time delay, manual trip indication, and LED indication. The single-pole design is suitable for single-phase applications. The thermomagnetic design ensures that the necessary contact force is provided to help ensure reliable operation without arcing or erosion. The adjustable trip settings enables users to modify the breaker\'s behavior based on specific application requirements. The over voltage protection feature helps protect against voltage spikes that can occur in some applications. The over temperature protection feature helps protect against excessive temperatures that can occur in some applications. The short time delay feature helps to differentiate between momentary overloads and short-circuits. The manual trip indication allows the user to manually trip the breaker when needed. The LED indication helps to identify when the breaker has been tripped and needs to be reset.

Conclusion

In conclusion, the 219-3-25739-4 circuit breaker is typically used in commercial and industrial applications for protection from currents from 40 amperes to 2200 amperes. Its features such as single-pole, thermomagnetic, adjustable trip settings, over voltage protection, over temperature protection, short time delay, manual trip indication, and LED indication make it a very versatile and reliable product.

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