BK/SFE-9

Fuses are important devices used to protect electrical appliances and circuits from overloading and short circuiting. The BK/SFE-9 is a type of fuse that is used for high-power applications and is designed for use in industrial, commercial and residential environments. It is a three-phase fuse that provides reliable over-current protection against faults that may occur in electrical circuits. The BK/SFE-9 is a non-venting fuse, meaning that it does not vent off any gas when it operates.

The BK/SFE-9 fuse is a UL-listed, three-phase, non-venting fuse and provides over-current protection for all three phases of a circuit. It is UL-listed for use in high-power applications and is rated for a maximum breaking capacity of 90 amperes at 500 volts. The fuse features a quick-acting mechanism that trips the fuse immediately upon reaching the rated current. The fuse also features a time delay trip mechanism that trips the fuse after a period of time has elapsed, in case of a prolonged fault condition. The time delay trip mechanism can also prevent nuisance tripping due to momentary overloads or inrush currents.

The BK/SFE-9 fuse is a precision device that is designed to provide stringent protection against over-current failures. It is made from a high-temperature-resistant, molded polymer insulation material and is designed so that the fuse and its components can withstand temperatures up to 150°C (302°F). The fuse is also constructed using terminals that are designed to resist ultra-violet (UV) light exposure. This is important for outdoor applications, as UV exposure can degrade and corrode the components of the fuse over time.

The working principle of the BK/SFE-9 fuse is simple. When the current passing through the circuit exceeds the fuse’s rated current, the heat generated by the electric current melts the element inside the fuse. This opens the circuit and stops the flow of current. This prevents the circuit from overheating and causes minimal disruption to the circuit.

The BK/SFE-9 fuse is ideal for use in high-power applications, such as industrial, commercial and residential applications. It is designed to provide reliable protection against over-current failures and is very reliable and easy to install. It is also one of the most cost-effective solutions for protecting electrical circuits from overloading and short circuiting.