IALHK12-1REC5R-39405-30

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Circuit breakers are essential parts of the electrical distribution network, providing protection against overloads and short circuits in medium and large installations. The IALHK12-1REC5R-39405-30 is one such breaker and is used in a wide range of applications. In this article, we will examine the application field and working principle of this breaker.

Usage

The IALHK12-1REC5R-39405-30 is a medium-voltage, three-phase, air-insulated switchgear circuit breaker with rated voltage of 12 kV and rated short-circuit current of 50 kA. As such, it is suitable for a wide range of applications, especially those that require the safe disconnection and reconnection of electrical circuits. These include industrial facilities such as factories, warehouses, data centers, and power distribution substations.

The IALHK12-1REC5R-39405-30 is suitable for a range of environment conditions, including areas with high humidity, moderate corrosive gas and dust contamination, and temperatures between –20°C and +40°C. It can even be used in high altitude areas, up to 3000 meters above sea level.

Operation

The IALHK12-1REC5R-39405-30 features an automatic, mechanically-actuated trip mechanism that triggers when short-circuits or overloads are detected. The breaker employs a live-front type construction in which the actuating mechanism is located in the same compartment as the contact lever and actuator. This design helps ensure reliable operation and reduces the time needed for servicing.

When a short-circuit or overload is detected, the actuator trips the contact lever, which triggers the main breaking spring and lifts all the contacts at once. This rapid opening of the contacts helps reduce the duration of any faults. The trip mechanism also features a manual reset button to reset the breaker if needed after a fault has been cleared.

The IALHK12-1REC5R-39405-30 is also equipped with an alarm system that will warn of an impending trip when a short-circuit or overload is detected. This system provides operators with time to act and address the fault before it trips. It also features an arc restraint device that prevents dangerous arcs from forming when the contacts open.

Conclusion

The IALHK12-1REC5R-39405-30 is a medium-voltage circuit breaker with an automatic, mechanically-actuated trip mechanism for short-circuit and overload protection. Its wide range of applications include industrial facilities, data centers, and power distribution substations. It features an alarm system and an arc restraint device for improved safety. These features make the breaker an essential part of any electrical distribution system.

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