3JQ 200 Circuit Protection

Package / Case:	2AG, 5mm x 15mm (Axial)
DC Cold Resistance:	2.35 Ohms
Size / Dimension:	0.217" Dia x 0.591" L (5.50mm x 15.00mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	CE, CSA, cURus
Melting I²t:	0.007
Breaking Capacity @ Rated Voltage:	100A AC, 150A DC
Mounting Type:	Through Hole
Series:	3JQ
Response Time:	Fast
Voltage Rating - DC:	140V
Voltage Rating - AC:	350V
Current Rating:	200mA
Fuse Type:	Cartridge, Glass
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Fuses: 3JQ 200 Application Field and Working Principle

Fuses are an important part of today\'s electrical power systems. They are used to protect the system against excessive overcurrents and short circuits. The 3JQ 200 is an high speed fuse designed for a wide variety of applications, including industrial, commercial, and residential installations. In this article, we will discuss the application field and working principle of the 3JQ 200.

Application Field

The 3JQ 200 is a high speed, high current rated fuse designed for a wide range of applications. It is UL listed and CSA certified for use in residential, commercial, and industrial installations. In addition, the 3JQ 200 is designed for use in AC power distribution and control panels, power supply units, and other systems requiring a continuous protection against short circuits and high currents. It is suitable for use in both primary and secondary power distribution systems. The 3JQ 200 has a high current rating and is available in both 1 and 2 pole configurations. The 1 pole fuse is rated at 200A, and the 2 pole fuse is rated at 400A. The 3JQ 200 is also available in a variety of voltage ratings, from 6 - 600V AC.

Working Principle

The 3JQ 200 fuse is an fast-acting, one or two-pole fuse, designed to quickly disconnect a circuit in the event of an overload or short circuit. When the fuse is tripped, the heater element in the fuse will melt and the metal strip connecting the two fuse ends will rupture. This disconnects the circuit and protects the system from damage.The 3JQ 200 fuse is designed to operate at extreme temperatures. The fuse is tested to operate at temperatures ranging from -20°C to +60°C. The fuse also has a reinforced arc quenching mechanism that allows it to effectively handle high pulse currents. The 3JQ 200 is also designed with a closed end, to reduce the risk of arcing on the terminals of the fuse. This ensures that the fuse remains safe even when used in harsh environments. The closed-end also provides additional protection against mechanical shock and vibration.

Conclusion

The 3JQ 200 is a high speed fuse designed for a variety of applications, including residential, commercial, and industrial installations. It is UL listed and CSA certified, and available in both 1 and 2 pole configurations. The 3JQ 200 is designed to operate at extreme temperatures and has an effective arc quenching mechanism for handling high pulse currents. The closed-end design reduces the risk of arcing on the fuse terminals, providing additional protection against mechanical shock and vibration.

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