IULPK111-1REC4-30620-1 Circuit Protection

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Circuit Breakers

An IULPK111-1REC4-30620-1 circuit breaker is an electrical switch which can automatically detect a fault condition and interrupt current flow. This switch is designed to protect an electrical circuit from damage caused by overload or short circuit. It is commonly used in the domestic and commercial areas, and even in industrial applications.

Application Field

The IULPK111-1REC4-30620-1 circuit breaker is typically used for the protection of single-phase and three-phase circuits, as well as directly connected loads. It can be used to protect against over-current, short circuit events, when a fault occurs in the electric circuit, or whenever an overload current exceeds the rated capacity of the circuit breaker. It is also suitable for application in power distribution and systems that require manual and automatic protection of circuits.

Working Principle

The IULPK111-1REC4-30620-1 circuit breaker operates in two distinct stages. The first stage is the thermal portion which is concerned with its time current characteristics. This stage consists of a bi-metallic element which acts as a temperature detector, and this bi-metallic element is directly linked to the contact system. If a certain amount of heat is generated due to a current overload or a short circuit, then this bi-metallic element will react to the temperature difference and drive the contact system into the open position.

The second stage of operation is the magnetic portion which is concerned with its trip current characteristics. This stage consists of an electromagnet which is placed in series with the current-carrying wire. If a current overload or a short circuit occurs, then the electromagnet will generate a force which will act on the contact system, and drive it into the open position. This forces the contacts away from each other and prevents current passing through the contacts thus protecting the circuit.

Overall, the combination of these two stages ensure that the circuit breaker can respond effectively to an over-current or short circuit situation, and protect the circuit appropriately.

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