BK/PCF-3

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A fuse is a safety device that protects electrical circuits from overcurrents that occur due to faults or excessive current draws. The BK/PCF-3 fuse is a high-current interruption device designed for medium voltage applications and meets UL and CSA standards. This type of fuse is suited for a variety of applications, depending on its ratings, including motor control centers, molded case circuit breakers, power distribution centers, and capacitor and reactor protection.

The BK/PCF-3 fuse uses a one-piece tubular element design constructed from high-creep steel. This provides reliable performance in circuits ranging from 100-2,250 amperes at a continuous operational voltage of up to 4,000V AC and 10,000A D.C. It is designed with a controlled melting characteristic, meaning that the fuse gradually increases its amperage with the presence of an overload or short-circuit. This helps avoid damage to the protected power system. The fuse also offers protection against arcs, high temperatures, and other extreme conditions associated with today’s high-power circuits.

The BK/PCF-3 fuse contains a glass-reinforced phenolic body that is designed for multiple uses. This allows the fuse to be plugged and unplugged from the power system under load conditions without the need for current interruption. The fuse body also houses the fuse element and its pin and shell contacts, which are all highly conductive. The fuse’s self-latching shunt construction also helps to minimize arcing and spark-over.

In the event of an overload or short-circuit, the BK/PCF-3 fuse begins to melt and open the circuit, allowing the energy to dissipate harmlessly. The fuse element rapidly and safely extinguishes the arc while creating minimal temperature rise in the device. The fuse has an adjustable trip time of 1.0 to 4.2 seconds, which is set by the user to meet the specific application’s needs. This type of fuse is designed for Class H kV and lower applications, making it an ideal choice for the disposal of excess energy from Class H load applications such as capacitor banks, capacitor panels, and interrupters.

The BK/PCF-3 fuse meets UL, CSA, VDE, and CE standards and is available in multiple sizes and ratings. It features a replace-in-place design, meaning that it can be installed quickly without interrupting the power flow in the circuit. The fuse also provides a flexible and cost-effective solution for users looking for reliable protection from overcurrent events. In addition, it is easy to use, maintain, and test, as it features a visible indicator to let users know when a fuse has been burned. This type of fuse is long-lasting and versatile, making it perfect for a variety of applications.

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