SPFI005.T

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SPFI005.T specialty fuses are designed to protect their circuits from over current and short-circuit conditions. The current rating of the fuse depends upon its physical size and the material of the element, as well as the temperature-rise characteristics of the fuse and its independent test data. It is important to note that the fuse cannot provide overcurrent protection if it is employed in a circuit with an overcurrent rating higher than it can safely handle.

The SPFI005.T specialty fuse is a temperature-compensated, fast-acting, gG type of fuse with a current rating of 315A. It is designed for use in circuits with DC voltages up to 1000V and AC voltages up to 480V. The fuse has a breaking capacity of 30kA, an interrupting rating of 50kA and a melting energy of 2.25cal/g. The nominal voltage is 125V. The current rating is specified at 25A or 100A for DC systems and 10A or 30A for AC systems.

The working principle of SPFI005.T is based on the overcurrent protection concept. When a circuit is overloaded, the fuse will heat up, and the material of the fuse element will begin to melt and an arc is created. This arc will dissipate heat and cause the melting of the element, which will interrupt the circuit. This results in the protective action of the device.

The fuse element of SPFI005.T is made of nickel-iron and consists of a wound element that is surrounded by a ceramic body. The fuse element is filled with a finely powdered tantalum-niobium alloy to provide the heat exchange and temperature compensation characteristics. The fuse casing is made of heat-resistant resin for added protection against short-circuit conditions.

The SPFI005.T specialty fuse has several features that make it attractive for use in a variety of applications. It is designed to be used in motor circuits, power circuits, lighting circuits, home appliance circuits and electrical equipment, and is also suitable for use in inverter circuits. It is UL and CSA listed, and is environmentally friendly as it utilizes no lead. Its low voltage drop rating makes it highly efficient, and its high vibration resistance makes it suitable for use in a variety of harsh environments. The fuse also provides excellent overcurrent protection and thermal stability.

In conclusion, the SPFI005.T specialty fuse is an ideal solution for protecting electrical circuits from over current and short-circuit conditions. The fuse can be used in a variety of applications due to its low voltage drop rating, high vibration resistance and excellent overcurrent protection and thermal stability. It is also UL and CSA listed, and is environmentally friendly as it utilizes no lead.

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