IEGF6-32509-20-V

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The IEGF6-32509-20-V is a kind of Circuit Breakers. It is competent to prevent the overload of the circuit and its components. A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. It is an especially important electrical device for controlling large circuit currents.

The IEGF6-32509-20-V is specifically designed for medium voltage applications. It is a three-phase, oil-filled electromechanical circuit breaker, which works in 50-60Hz frequency. The breaking capacity is 35kA (@400V)/70kA (@690V). It is equipped with an additional insert for screw set-up. It satisfies the requirements for surge protective devices in accordance with IEC6-32509-20-V.

The IEGF6-32509-20-V circuit breaker has two primary working principles. It works both on "thermal" and "magnetic". The thermal protection allows the breaker to protect the circuit from high current caused by an overload, while the magnetic protection allows the breaker to open the circuit and cut power within milliseconds when it detects a short circuit.

The thermal part of the operation occurs when the current flowing through the circuit exceeds its maximum rated current, at which point the "thermal" mechanism on the breaker will activate and trip the breaker. This principle works in two stages- current heating and current flow. During current heating, the heat generated by the flow of current makes the breaker trip. Then, during the current flow, the circuit is interrupted, preventing further current flow.

The magnetic part of the IEGF6-32509-20-V circuit breaker works similarly to the thermal mechanism, but is much faster. When the current flowing through the circuit exceeds a predetermined short circuit current, a powerful magnetic field is created, which triggers the breaker\'s mechanical lever. The lever then excites a spring mechanism, causing the contacts to open rapidly, thus a short circuit is prevented.

It is clear that the IEGF6-32509-20-V circuit breaker has two distinct and essential working principles- thermal and magnetic. The thermal protection allows the breaker to protect the circuit from high current caused by an overload, while the magnetic protection allows the breaker to open the circuit and cut power within milliseconds when it detects a short circuit. With these two mechanisms combined, the IEGF6-32509-20-V ensures high voltage against overload and short circuit currents in medium voltage applications.

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