170L8281

Electrical, Specialty Fuses

170L8281 is a fast-acting fuse product designed to provide specific protection and operational characteristics in a variety of devices and applications. This fuse is specifically designed to provide superior protection against overcurrent and high-voltage damages, and to provide reliable overcurrent indications when necessary.

The 170L8281 is constructed with a ceramic tube that houses a calibrated amount of silver along with some metal composition that provides the disconnecting capabilities for the fuse. The fuse’s connection to the conductor is made through a suspension bridge, which includes two epoxy-coated copper contacts. The bridge provides the electrical connection between the fuse and the conductor.

Application Field

The 170L8281 fuse is designed to function in a variety of electrical circuits. It is most commonly used in dc power and industrial equipment, telecommunications, data communications, protection of network circuitry, computer systems, high-end peripheral devices, and other medical and industrial systems.

This fuse is also found in automotive applications such as automotive power boxes, HVAC equipment, pumps, and motor controllers. Additionally, the fuse is utilized in building management systems, security systems, and environmental control systems. Furthermore, the application field can include any device or system that requires short-circuit protection.

Working Principle

The working principle of the 170L8281 fuse is based on the thermal-magnetic behavior of the silver in the ceramic tube. Upon the occurrence of an overcurrent, the temperature in the fuse rises, creating an expanded state inside the fuse tube by the thermal energy. When the temperature reaches a certain level, the expanded silver contacts the two epoxy-coated contacts connected to the fuse, generating a voltage arc which serves to disconnect the circuit.

Additionally, the fuse is equipped with a magnetic-thermal element which can detect and respond to an overcurrent. This is done in order to control the dissipation of energy through the disconnection process, providing fast and reliable protection.

The 170L8281 is designed for specific current ratings, meaning that it can handle a certain amount of current before it disconnects. If the current rating of the fuse is exceeded, the thermal-magnetic behavior of the fuse will result in the dissipation of energy and the disconnection of the circuit.

Aside from the thermal-magnetic element of the 170L8281, it is also designed to provide overcurrent indication, which is indicated by a red LED indicator located near the fuse. This indicator will light up when the overcurrent has been detected, indicating that the fuse has done its job in disconnecting the circuit.

Conclusion

The 170L8281 fuse is a fast-acting, high-quality protective device that is suitable for a variety of electrical circuits. This Specialty Fuse is designed to provide superior protection against overcurrent and high-voltage damages, while providing reliable overcurrent indications when needed.