KRP-C-3800SP

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The KRP-C-3800SP is a type of electrical specialty fuse. Typically, plain fuses provide overload and short-circuit protection, but the KRP-C-3800SP offers a more specialized role. This fuse is designed to protect low-voltage distribution equipment from transient voltage spikes, from transients due to electrical arcs occurring on power lines, and from large lightning surges.

The KRP-C-3800SP fuse has three main components: a metal body consisting of an external thread with a conductor connector and two electrical contacts, an arcing chamber, and a bridge wire connected between the two external contacts. The body and the arcing chamber are sealed to ensure the fuse is air and moisture tight.

In order for the KRP-C-3800SP to function properly, it must be properly sized and used in the correct application. The fuse must be installed in a suitable holder to ensure proper transfer of heat between the fusible element and the external contacts. If the fuse is too large, it will not be able to trip during an overload; if it is too small, it may not be able to safely withstand a fault current without being damaged.

The fuse operates by melting the bridge wire when the rated current passes through it. By melting, the bridge wire breaks the electrical circuit, preventing further current flow. The arcing chamber also aids in breaking the circuit by collecting the arc created when the bridge wire breaks. This ensures the circuit will remain open even if there is a secondary voltage increase.

When the voltage spike occurs, the fuse will open quicker than other surge arrestors or circuit breakers because of its low arc resistance. This means that an arc will not be created or sustained for an extended period of time. This helps to ensure the protection of the electrical equipment and the safety of the user.

The KRP-C-3800SP fuse is specifically designed for low-voltage applications, such as those found in industrial and commercial settings. It is rated at 3800A and has a breaking capacity of 35kA. The fuse meets UL, CSA, and IEC standards and has been tested to ensure it is in compliance with these standards.

In addition to protecting electrical equipment from voltage spikes and lightning surges, the KRP-C-3800SP fuse also helps to protect it from severe fault currents. In the event of a fault current, the fuse will open quicker than other over-current protection devices, thus preventing excessive damage.

The KRP-C-3800SP fuse is a reliable and effective over-current and surge protection device that can be used in a wide range of applications. It is easy to install, has a long service life, and is cost effective. It is recommended for use in low-voltage electrical distributions, such as those found in industrial and commercial settings.

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