JLLN-400

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JLLN-400 is a type of electrical specialty fuse. It is meant to protect electrical circuits that pass a high current at lower voltages. The JLLN-400 is widely used in various industries and applications that require the same protection.

Key Features

• Rated voltage: 400V
• Rated current: 10-400A
• Nominal energy: 4.5KJ
• Breaking capacity: 6-60KA
• Operation time: 4-120ms
• Flexible and adaptable design
• Low operating temperature range -25°C - + 80°C
• High short-circuit and overload current handling ability

Applications

The JLLN-400 electrical specialty fuse is primarily used as a safety device to protect electrical components and circuits from damage caused by excessive current or voltage surges. It is suitable for applications such as air conditioners, consumer electronics, heavy-duty industrial machines, elevators, pressure cookers, and other machines that require high current or voltage at low voltage. The JLLN-400 is also commonly used in industries that require electrical protection, such as telecommunication, military, aviation, automotive, and medical.

Working Principle

The JLLN-400 works by disconnecting the circuit when an overcurrent or overvoltage exceeds the preset values. The base of the fuse is made of a metal or ceramic substrate material and is connected to a terminal block which connects to the other end of the circuit. The metal filament in the base works like a resistor and has a specific resistance value. When the current passes through this resistor, it causes heat to be generated. This causes the metal filament to expand, breaking the electrical connection of the circuit.

The advantages of using this type of fuse is that it can be adjusted to protect the circuit from different levels of current or voltage surges. The fuse also has a wide temperature range, meaning it can work in different environmental conditions. It also features a fast response time, meaning it will disconnect the circuit quickly when an overcurrent or overvoltage is detected.

In summary, the JLLN-400 is an electrical specialty fuse used to protect electrical circuits from overcurrent and overvoltage surges. It is suitable for use with air conditioners, consumer electronics, heavy-duty industrial machines, elevators, pressure cookers, and other machines that require high current or voltage at low voltage. The JLLN-400 has a wide temperature range and a fast response time, making it a reliable and effective safety device.

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