SPFR400.X

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Fuses are one of the most important safety components in electrical and electronic systems. The application field and working principle of SPFR400.X fuses are important elements of the overall fuse portfolio. This type of fuse is designed for use in intermediate voltage and high voltage electrical motors, and their current and voltage ratings ensure that they can handle both heavy duty and light load currents with reasonable safety.

SPFR400.X fuses have a fast-acting time-delay feature, which means that they will react quickly to overloads and short-circuits while providing enough time for motor time-delay starters, pumps, and similar electrical components to kick in. By their very nature, fast-acting, time-delay fuses offer extra security against accidental damage caused by spikes and surges in the power supply. The fuse\'s thermal characteristics ensure that high currents are interrupted in a controlled fashion in the event of a fault.

The cast metal construction of SPFR400.X fuses ensures maximum strength and reliable performance. Additionally, their insulating porcelain housing makes them highly resistant to dust, shock, and vibrations. They are also highly resistant to the effects of moisture, making them ideal for outdoor applications and for use in well-ventilated indoor spaces. Furthermore, their tamper-resistant design ensures that they cannot be easily interfered with or bypassed.

The design of the SPFR400.X fuses also enables them to provide reliable protection in high fault current applications. The current-limiting action of the fuse ensures correct operation in the event of a fault, resulting in minimal damage to the device or the overall circuit. The design also ensures that the fuse cannot be overloaded, thereby reducing the risk of overheating and potential fire hazards.

The installation of SPFR400.X fuses is relatively straightforward. The fuse clips are simple to install into the designated fuse holder. The fast-acting time-delay feature of the fuse means that they are compatible with motor-driven equipment, and they can be interconnected with other fuse types to provide multiple protection.

In summary, SPFR400.X fuses are designed for use in intermediate voltage and high voltage electrical motors. Their fast-acting time-delay feature ensures that they react quickly to overloads and short-circuits, providing extra security against accidental damage caused by spikes and surges in the power supply. Additionally, their cast metal construction and insulating porcelain housing make them highly resistant to dust, shock, and vibrations, making them suitable for outdoor and well-ventilated indoor applications. Furthermore, their tamper-resistant design ensures that they cannot be bypassed or interfered with. The installation of SPFR400.X fuses is relatively straightforward, and they can be interconnected with other fuse types to provide multiple protection.

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