209-3-1-66F-3-9-70 Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Circuit breakers are essential pieces of electrical equipment used in the transmission and distribution of electricity. They are responsible for preventing the flow of too much current through electrical wiring and circuits, which can cause damage and destruction to electrical components within the system. The 209-3-1-66F-3-9-70 model circuit breaker is no exception, and its application field and working principle are quite straightforward.

In terms of its application field, the 209-3-1-66F-3-9-70 circuit breaker is a medium-voltage breaker designed for use by electric utilities. It is commonly used in transmission and distribution lines for the protection of motors, transformers, and other consumer loads, and is capable of interrupting full load current ratings up to 3000 amperes. It features a trip-free mechanism that prevents accidental tripping, as well as a thermal-magnetic trip element that allows for simple and reliable trip settings.

When it comes to its working principle, the 209-3-1-66F-3-9-70 circuit breaker essentially works by cutting off the power flow to an associated circuit in the event of an overload. This is accomplished through an electromagnetically operated contact system, which is triggered when an excessive amount of current passes through it. When this happens, the breaker detects the overcurrent and trips the contacts, interrupting the power to the associated circuit. It can also be triggered by a thermal element, which provides protection against prolonged overcurrent conditions that can potentially cause a system overload.

In addition, the 209-3-1-66F-3-9-70 circuit breaker also features a mechanical trip unit, which operates on a preset range of current. This allows the user to set the required current range, thereby providing protection from overcurrents and short circuits. Furthermore, the 209-3-1-66F-3-9-70 circuit breaker includes integrated overvoltage protection, in order to protect sensitive electrical equipment from prolonged exposure to voltage spikes.

To conclude, the 209-3-1-66F-3-9-70 circuit breaker is a medium-voltage breaker designed for use in transmission and distribution lines. Its main purpose is to provide protection from overcurrents, short circuits and voltage spikes. In terms of its working principle, it uses an electromagnetically operated contact system to detect and trip when an excessive amount of current passes through it. It also includes a mechanical trip unit, which allows for a preset range of current to be set, as well as integrated overvoltage protection for sensitive electrical components.

The specific data is subject to PDF, and the above content is for reference