9912050003 Circuit Protection

Circuit Breakers

A circuit breaker is a device used mainly in electrical circuits that trips or breaks the connection should an overload of current or voltage be detected. Before the dawn of circuit breakers, the protective device against electrical surges and overloads were fuses. A fuse is an element that looks similar to a regular wire but is larger and contains a piece of metal which will melt should too much current or voltage be detected in the connected circuit. In contrast, circuit breakers are much more robust and are capable of being reused.

The 9912050003 is a type of circuit breaker designed primarily for industrial and commercial applications. It uses a three pole field power contact set that can independently monitor up to three separate circuits. It is designed to provide timely and reliable interruption of short-circuits and overloads to protect equipment and personnel from hazardous currents and currents that exceed pre-determined levels of electricity. The 9912050003 features a stainless steel enclosure that is sealed against dust, humidity, and oils for maximum safety.

Working Principle

The 9912050003 circuit breaker works by constantly measuring the amount and types of electrical currents that are flowing through it. If it detects anything beyond the predetermined limits, it will trip the circuit breaker in order to protect any connected equipment or personnel from harm. The functioning of the circuit breaker is based on two principles: thermal and magnetic.

Thermal Operation

The thermal operation of the 9912050003 circuit breaker relies on the rapid increase of temperature when an overload current is detected. By measuring the current, it can determine when the temperature has reached a predefined threshold. The circuit breaker then trips, cutting power to the circuit and limiting any possible damage.

Magnetic Operation

The magnetic principle behind the 9912050003 circuit breaker uses an electromagnetic field created by an internal coil. When the current in the protected circuit rises beyond the predetermined level, the coil is energized, creating an opposing magnetic field. The heat generated by this field is then used to trip the circuit breaker, ending the flow of electricity to the protected circuit and preventing any damage.

Conclusion

In conclusion, the 9912050003 circuit breaker is a reliable and safe device used primarily in industrial and commercial applications. It is capable of monitoring up to three separate circuits independently and is designed to provide timely and reliable interruption of short-circuits and overloads should it detect any outgoing or incoming currents beyond the predetermined levels. Its functioning is based on two principles, thermal and magnetic, which are capable of promptly tripping the circuit breaker, thus protecting any connected equipment or personnel from danger.