3P18U3/84

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The 3P18U3/84 is a type of circuit breaker and is designed for use in harsh environments such as those encountered in industrial plants, buildings, and off-grid applications. The circuit breaker is designed to provide reliable protection against overloads and short-circuits, and is suitable for a wide range of weather conditions and system voltages, making it a versatile solution for various applications.

The 3P18U3/84 circuit breaker consists of two separate parts: the main contacts and the trip unit. The main contacts are responsible for controlling the flow of current into and out of an electric circuit, while the trip unit is responsible for triggering the circuit breaker when an overload or a short circuit is detected. The trip unit comprises several components, such as relays, coils, and fuses, which help to ensure that the circuit breaker is capable of responding quickly and precisely to changes in electrical load.

The 3P18U3/84 can be used in a variety of applications, including power distribution, motor control, and HVAC systems. It is particularly suited to applications that require a robust and reliable form of protection, such as factories, warehouses, and large electric grids. Furthermore, the circuit breaker is designed to be easily installed and operated, providing a simple, effective, and cost-effective solution for many electrical applications.

The 3P18U3/84 circuit breaker operates according to the magnetic-hydraulic principle, which is often referred to as the inverse time curve principle. This principle works by measuring the current flow and then calculating the time it takes for the current to reach a predetermined level. If the current reaches the predetermined level before a certain limit, then the circuit breaker will trip, automatically disconnecting the electrical circuit.

The 3P18U3/84 circuit breaker is designed to provide a high level of reliability and is suitable for both indoor and outdoor applications. It is also constructed to provide protection against direct lightning strikes, continually monitoring the current and providing an effective response in the event of any surge or overload. In addition, the circuit breaker includes a variety of safety features, such as adjustable trip points, which allow the level of protection to be easily adjusted to suit the application.

In conclusion, the 3P18U3/84 circuit breaker is a robust and reliable form of protection that is suitable for a wide range of applications. Its magnetic-hydraulic operating principle ensures a fast and precise response to changes in electrical load, while the variety of safety features and high level of reliability make it an ideal solution for many industrial and domestic applications.

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