3JQ 1.5-R

Package / Case:	2AG, 5mm x 15mm (Axial)
DC Cold Resistance:	0.056 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:	1.4
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:	1.5A
Fuse Type:	Cartridge, Glass
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Fuses have served a critical role in the protection of installations and electrical circuits from overcurrent for almost as long as electricity has been in use. 3JQ 1.5-R fuses are designed for a range of applications, from surplus line protection to supplementary overload protection to branch circuit protection. This article outlines the field of application and working principles of 3JQ 1.5-R fuses.

3JQ 1.5-R fuses are rated for class R protection and are recommended for branch circuit protection in residential, commercial and industrial sites. With an interrupting rating of 10,000 amps, this type of fuse is the preferred choice for both residential and light commercial applications. Additionally, with this type of fuse, primary overcurrent protection can be supplemented with 3JQ 1.5-R for a higher degree of protection. The basic function of the 3JQ 1.5-R fuse is to protect the devices connected to it by eliminating the possibility of excess current and preventing catastrophic circuit failure.

The fuse consists of a metal element or strip that is designed to melt when the current exceeds a certain threshold. When the current through the fuse becomes too high, the metal element will heat up and melt, which will cause a break in the circuit, thus interrupting the current and protecting the circuit from overload. The fuse is designed such that it will allow a certain amount of current to pass through the fuse before it melts, thus preventing the current from becoming too high. Fuses also protect the circuit by preventing arcing and fire hazards.

The most important factor to consider when selecting a fuse is its temperature rating. This rating indicates the highest temperature at which the fuse, and the connected device, will operate. Generally speaking, the lower the temperature rating, the more precise the level of protection that the fuse offers. The 3JQ 1.5-R fuse has a temperature rating of 155°C for maximum protection.

The 3JQ 1.5-R fuse is specifically designed to protect branch circuits and devices in both residential and light commercial applications. This type of fuse is best suited for low-voltage electrical distribution panels, as its interrupting rating of 10,000 amps is high enough to provide effective protection. Additionally, this type of fuse is recommended for use in situations where supplementary protection of primary overcurrents may be required.

The working principle of the 3JQ 1.5-R fuse is relatively simple. When a current passes through the fuse, the fuse element heats up and melts if the level of current exceeds a specified threshold. This breaks the circuit, thus preventing the current from becoming too high and causing harm to the connected device. The fuse also helps to prevent arcing and fire hazards, as it is designed to open and break the circuit when the current reaches a certain level.

To summarize, the 3JQ 1.5-R fuse is a high-rated fuse designed for use in both residential and light commercial applications, where the protection of branch circuits and devices is required. Its interrupting rating of 10,000 amps is high enough to offer effective protection against overcurrents. The 3JQ 1.5-R fuse is designed to heat up and melt if the level of current exceeds a certain threshold, which will open and break the circuit, thus preventing the current from becoming too high. Additionally, this type of fuse helps to prevent arcing and other fire hazards.

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