125NH1G-690

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125NH1G-690 is a special type of electrical fuse designed for use in high voltage applications. It is commonly used in industrial and commercial settings to protect electrical equipment from overloading due to high current draw or short-circuits. The fuse is rated for 690 volts AC and has a time-delay of 1 minute.

The fuse is composed of a metal sheet or strip, usually made out of copper or aluminum. This sheet is insulated with an insulating material such as glass or fiberglass and sealed in a metal tube. A thin wire link is connected to the fuse and then connected to an electrical circuit. When an overload or short-circuit occurs, the current passes through the wire link and heats it up. This heat causes the metal strip or sheet to expand quickly, creating an arc between the wire link and the metal strip. This arc interrupts the current and fuses the link, breaking the circuit and de-energizing the circuit.

The 125NH1G-690 has many uses in a variety of applications. It is commonly used in motor control circuits to protect the equipment from circuit overloads or short-circuits. The fuse can also be used in high voltage switching, transformers, and other electrical equipment that is subjected to high levels of current. In medical applications, the fuse can be used to protect sensitive medical equipment from overloading. Additionally, the fuse is also used in lighting systems to protect against short-circuits.

In order for the fuse to work properly, it must be sized correctly for the application. The fuse must be able to carry the rated current as well as withstand short-circuit currents without blowing. Additionally, it must have the proper voltage and time-delay characteristics. The time-delay characteristics refers to how quickly the fuse will blow when there is an overload. This ensures that the fuse does not blow prematurely, thus protecting the circuit.

Installation of the 125NH1G-690 fuse is relatively straightforward. The fuse should be securely fastened to an appropriate fuse holder. An appropriate fuse holder should be rated for the same voltage as the fuse and should have the proper size and type of terminals for connection to the circuit. Once the holder is connected to the circuit, the fuse can be inserted into the holder.

The 125NH1G-690 is an important component of motor control circuits and other high voltage applications. It is a crucial part of any electrical system as it provides protection against overloading and short-circuits. With the proper installation and sizing, the fuse can help ensure that your circuit will remain safe and operational.

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