0697H1600-01

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Fuses

A fuse is an important component of any electrical system, and understanding the various types and workings of these devices is paramount for successful electrical system design. The subject of this paper is 697H1600-01 application field and working principle.

696H1600-01 application field

The 697H1600-01 fuse is an air-break type, designed for application in all types of circuits where interrupting capacity and short-circuit protection are needed. Suitable for both AC and DC circuits, the 697H1600-01 is suitable for ambient air temperatures ranging from -40°C to 80°C. The device is built to UL and IEC standards, rated up to 1600A. This fuse is designed for circuit protection in vital areas such as distribution networks, distribution substations, industrial controls, factories, and mechanical works.

696H1600-01 working principle

The 697H1600-01 uses an air gap as its key principle. The device consists of two metal elements, known as elements, which are joined together electrically using an insulating gap or air gap. When the circuit is energized, current flows through the fuse, resulting in heat being developed in the element. The heat eventually melts the element and separates the two metal parts. This separation terminates further current flow and in effect, breaks the circuit.

Since the element of the 697H1600-01 fuse is designed to melt in order to terminate the circuit, there are various characteristics which are taken into consideration when selecting a fuse to suit the application, for example, melting point, time-delay, and current interruption capability.

The melting point of the fuse element is set at the junction point between the maximum current rating and acceptable time-delay. Any overload current which is higher than the maximum current rating, but which is of acceptable duration, will cause the element to melt and protect the circuit. Time-delay, which is based on the characteristic of the fuse element material, is another useful feature as it ensures sufficient time to remove or reduce the overload current before the circuit is interrupted.

Fuses also have current interruption capability. This is related to the amount of current flowing through the device when it is called upon to interrupt a short-circuit. A higher current interruption capability ensures that the circuit is quickly and reliably isolated, providing superior protection to the connected circuits.

In conclusion, the 697H1600-01 is a vital component for various high load electrical circuits, providing short-circuit protection and reliable emergency disconnection. Its air-gap design, current interruption capability and wide operating temperature range ensure that it provides a reliable and efficient solution for many electrical systems.

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