IUG2-39772-1

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--
Moisture Sensitivity Level (MSL):	--

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Introduction

Circuit Breakers are a type of electrical component used in power systems as a safety measure to disconnect and protect the electrical system in case of an overload or short circuit. The IUG2-39772-1 is a common type of circuit breaker that is used in residential and industrial applications. This article will discuss the application field and working principle of the IUG2-39772-1 Circuit Breaker.

Application Field

The IUG2-39772-1 is suitable for power distribution systems with rated voltage of 400V, 50/60Hz and rated current up to 250A. The IUG2-39772-1 is a one-pole, two-pole and three-pole hybrid air and vacuum circuit breaker that provides both protection and switching functions. It is most commonly used in residential and industrial venues, such as hotels, shopping malls, factories and schools. The IUG2-39772-1 is also suitable for use in power distribution systems together with other circuit breakers.

Working Principle

The working principle of a Circuit Breaker is based on the principle of magnetic induction. When an overload or short circuit occurs in the electrical system, the current in the system rises faster than the rate of increase of the contacts that make up the circuit breaker. This creates a magnetic field, which causes the contacts to move and separate, thus disconnecting the electrical circuit and preventing further damage. The IUG2-39772-1 uses an arc-extinguishing mechanism which utilises both air and vacuum to break the electrical arc between the contacts. The air portion of the mechanism uses a venting chamber to rapidly increase the air pressure and separate the contacts, while the vacuum portion uses a sealed system to provide a low-pressure environment to extinguish the arc. This two-step process ensures safe, efficient operation of the circuit breaker. In addition, the IUG2-39772-1 has a built-in protection system that ensures that the contacts remain closed until the over-current condition is cleared. The protection system is designed to prevent the re-closure of the contacts when the conditions that caused the overload or short circuit are still present.

Conclusion

The IUG2-39772-1 is a hybrid air and vacuum circuit breaker that is suitable for residential and industrial applications in power distribution systems with rated voltage of 400V, 50/60Hz and rated current up to 250A. It utilises an arc-extinguishing mechanism which combines air and vacuum to break the electrical arc between the contacts and has a protection system that prevents re-closure of the contacts when the over-current condition is still present.

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