DFJ-25 Circuit Protection

Series:	DFJ
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Cartridge
Current Rating:	25A
Voltage Rating - AC:	600V
Voltage Rating - DC:	450V
Response Time:	--
Applications:	Electrical, Industrial
Features:	--
Class:	J
Approvals:	CE, CSA, UL
Operating Temperature:	--
Breaking Capacity @ Rated Voltage:	200kA AC, 100kA DC
Mounting Type:	Holder
Package / Case:	Cartridge, Non-Standard
Size / Dimension:	0.810" Dia x 2.250" L (20.57mm x 57.15mm)
Melting I²t:	12

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<p>The DFJ-25 is a electrical specialty fuse that is utilized in multiple applications to provide protection for over-current. It is a knife contact-type fuse that is regularly characterized as an industrial power fuse. It is set with voltage levels up to 690VAC and is made up of a compact size. The fuse utilizes a fast-acting time-delay feature that requires less than one second to trip in the event of an over-current surge.</p><p>The DFJ-25 fuse offers a range of features that make it suitable for a wide variety of applications. It is made up of a two-wire construction that is designed to reduce contact resistance. The fuse also features a high dielectric strength of 200 kV, making it highly resistant to electrical interference. Additionally, the fuse is resistant to shock and vibration, making it suitable for use in even the harshest of environments.</p><p>The DFJ-25 not only provides superior protection against over-current, but also helps to reduce the risk of electrical fire or other electrical hazards when used in applications such as high voltage power supply and distribution. It can be used in both three-phase and single-phase systems, and is designed to provide optimum protection against overloading, short-circuiting, and over-voltage conditions.</p><p>The DFJ-25 is most commonly used in high voltage power supply applications, including connections to power packs, motor starters, and other motor control systems. It is also used in a wide variety of industrial, commercial, and residential applications to provide protection for over-current.</p><p>The working principle of the DFJ-25 is simple and straightforward. When over-current occurs, the fuse element inside the fuse experiences a rapid heating caused by the current. This temperature rise causes the fuse element to quickly melt, creating an open circuit and thus, no current flow. The fill material surrounding the fuse acts as protection against any further surges and helps to ensure the efficient operation of the fuse.</p><p>In order to ensure safe operation, the DFJ-25 is UL recognized and meets industry standards such as EN 60079-18 and CSA E112-18. This helps to ensure that the fuse meets the highest levels of safety and reliability. The fuse also meets other applicable standards such as RoHS 2, CE, and IEC.</p><p>In conclusion, the DFJ-25 is a versatile electrical specialty fuse that has many applications in the industry. It is made up of a two-wire construction and has a fast-acting time-delay feature that requires less than one second to trip in the event of an over-current surge. With a high dielectric strength and a range of features that make it suitable for many applications, the DFJ-25 provides superior protection against over-current, as well as reducing the risk of electrical fire and other hazards.</p>

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