702R1BI8.25

Applications:	Motor Protection
Size / Dimension:	18.000" L x 3.000" W x 3.600" H (457.20mm x 76.20mm x 91.44mm)
Package / Case:	Cylindrical, Blade Terminal (Bolt)
Mounting Type:	Bolt Mount
Breaking Capacity @ Rated Voltage:	80kA
Operating Temperature:	--
Approvals:	--
Class:	R
Features:	Indicating
Series:	POWR-GARD®
Response Time:	--
Voltage Rating - AC:	8.25kV
Current Rating:	70A
Fuse Type:	Cartridge
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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702R1BI8.25: Application Field and Working Principle

702R1BI8.25, otherwise known as high voltage power fuse, is a specialty fuse developed and produced by a specialized electronics company. It is classified as electrical and specialty fuses due to its electrical properties. It is mainly used to protect high voltage power transmission and distribution equipment, especially in outdoor lighting and protection systems.This specialty fuse is a type of cutoff protection device with a complete over-current protection system. It is composed of two main parts - the trigger mechanism and the arc extinctor. The trigger mechanism is composed of fuse-core, fuse-link, arrester, arrester body, insulator and a host of other components. The arc extinguisher is mainly composed of fuse elements, flame-reducing elements and an enclosure.The working principle of the 702R1BI8.25 fuse is quite simple. When a current or voltage higher than the rated current or voltage flows through the fuse, the current-carrying fuse-link heats up and eventually melts due to the Joule heating effect. This triggers a spark arrester, which breaks the circuit and protects the device.The arc extinguisher is mainly responsible for suppressing and extinguishing the arc formed when the circuit is broken. It does this by providing a separate gas-filled chamber for the arc, which is then cooled rapidly by the fan-driven air flow in the chamber. Once the arc is extinguished, the current is quickly fused and the fusing process is completed.The 702R1BI8.25 fuse has a wide range of applications, especially in the protection of high voltage power transmission and distribution equipment. It can also be used in industrial production and commercial operation. It is also used in outdoor lighting and protection systems, such as street lighting and emergency lights.The 702R1BI8.25 high voltage power fuse has the advantages of high breaking capacity, low power loss, over-current protection, arc suppression and flame-reduction and so on. All of these characteristics make it a perfect choice for protecting high voltage power systems.In conclusion, the 702R1BI8.25 high voltage power fuse is a specialized fuse developed and produced by a specialized electronics company. It is mainly used to protect high voltage power transmission and distribution equipment, especially in outdoor lighting and protection systems. Its working principle is simple and it has high breaking capacity, over-current protection, arc suppression and flame-reduction, all of which make it an ideal choice for protecting high voltage power systems.

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