4419.9003 Circuit Protection

Circuit breakers are essential components in electrical systems designed to protect electrical equipment from circuits that experience short circuit or overload. The 4419.9003 is a medium-voltage circuit breaker designed to operate in frequencies from 400 Hz–68 kHz, with the ability to interrupt and re-energize up to 7.2 MVA.

The 4419.9003 circuit breaker operates using a three-phase sensing system, designed to detect and respond to short circuits and overloads. This includes three individual windings, each monitoring the three legs of the power system. The circuit breaker is equipped with a non-interrupted monitoring system, which eliminates the need for external monitoring equipment. This system also meets the requirements of UL489 and CE compliance.

The 4419.9003 circuit breaker is a flexible and versatile component that is suitable for use in a wide variety of applications, including industrial, commercial, and residential applications. It is also suitable for the protection of high-voltage transformers, with the ability to withstand surges and short circuits. The breaker also has the ability to automatically reset itself after a fault is detected, and it is designed to operate at low temperatures.

The 4419.9003 is also designed with safety and reliability in mind. It has an adjustable current limit setting, allowing users to tailor the circuit breaker to their specific needs. It also features a diagnostic system, which conducts weekly or periodic self-test operations to ensure proper functioning. This diagnostic system is designed to instantly detect fault conditions and take appropriate action, providing improved safety.

The 4419.9003 is a powerful and reliable circuit breaker that offers excellent protection against overloads and short circuits. It is designed to withstand a wide range of frequencies, and it is equipped with an adjustable current limit setting to suit a variety of applications. It also features an advanced diagnostic system that tests itself regularly, providing users with peace of mind.