Eaton DFJ-45 High Speed Fuse - UL Listed Class J
Part Number: DFJ-45
Quick Summary
Eaton DFJ-45 high speed fuse delivers fast overcurrent protection for industrial motor drives and control panels. Nuisance trips and downtime due to slow fuse response create costly interruptions; this fuse is engineered for rapid interruption under overloads, protecting downstream equipment. UL Listed and CSA Certified, with CE Marking and RoHS compliance, it meets essential global safety and environmental standards for multinational facilities. Featuring a Clip-lock connection, Class J construction, and a Melamine tube, it installs cleanly in standard fuse blocks and cabinet cutouts. Rated at 45 A, with 200 kAIC at 600 Vac and 100 kAIC at 450 Vdc, it provides robust protection with minimal maintenance and easy field replacement.
Product Information
Extended Description
DFJ-45 Eaton: Eaton Bussmann series DFJ high speed fuse, 600 Vac or less, 450 Vdc or less, 45A, 200 kAIC at 600 Vac, 100 kAIC 450 Vdc, Non Indicating, High speed fuse, Clip-lock, Class J, Melamine tube
Product Name
Eaton Bussmann series DFJ high speed fuse
Catalog Number
DFJ-45
UPC
051712653350
Product Length/Depth
1 in
Product Height
2.4 in
Product Width
1 in
Product Weight
0.17 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Certifications
UL Listed CSA Certified
Amperage Rating
45 A
Interrupt rating
200 kAIC at 600 Vac 100 kAIC 450 Vdc
Voltage rating
600 Vac or less, 450 Vdc or less
Material
Melamine tube
Packaging type
Standard
Class
Class J
Connection
Clip-lock
Fuse indicator
Non Indicating
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - DFJ-45
DFJ-45~DRIVE FUSE
Datasheet - FNQ-30
The 45 A amperage rating delivers precise overload protection, reducing unnecessary interruptions in motor drives and control circuits while extending equipment life. This translates to lower maintenance costs, higher line efficiency, and improved uptime in packaging, material handling, and process automation environments. By aligning with common industrial loads, the DFJ-45 minimizes the risk of nuisance trips during startup transients and peak load events, supporting more predictable production schedules. The voltage capability of 600 Vac or less and 450 Vdc or less covers a broad spectrum of AC/DC installations, enabling a single SKU to support both up-to-date control panels and legacy systems, simplifying procurement and spare-part management. A high interrupt rating—200 kAIC at 600 Vac and 100 kAIC at 450 Vdc—provides a wide fault-current margin, protecting power distribution while limiting collateral damage in high-energy circuits. This fuse’s Class J form factor, clip-lock mounting, and melamine tube ensure robust physical integrity, straightforward installation, and reliable performance in cabinet environments with limited space. The non-indicating design reduces visual clutter in crowded enclosures and minimizes maintenance checks to confirm status. Compliance with UL and CSA, plus CE Mark and RoHS, assures global suppliers and multinational facilities of consistent safety and environmental performance, supporting international project scopes and risk management objectives.
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FAQs
DFJ-45 installs in standard Class J fuse blocks using the clip-lock connection, providing secure mechanical retention and stable electrical contact. Ensure the holder is rated for Class J fuses, verify the panel’s voltage and current requirements, and insert until the clip engages. This minimizes resistance and heat buildup, supporting reliable protection in motor drives and control circuits.
The DFJ-45 is rated at 45 A with a voltage rating of 600 Vac or less and 450 Vdc or less. Its interrupt rating is 200 kAIC at 600 Vac and 100 kAIC at 450 Vdc. Use these values to size upstream breakers, wiring, and panel bus configurations, ensuring the fuse can safely interrupt worst-case fault currents without arcing or equipment damage.
Yes. The DFJ-45's Class J, melamine-tube construction supports robust performance in industrial environments. Its high interrupt ratings and compatibility with clip-lock holders make it suitable for motor drives and control panels subject to high inrush currents, while its compact dimensions ease installation in crowded enclosures.
The DFJ-45 is UL Listed and CSA Certified, with CE Marking and RoHS compliance. These certifications confirm compliance with safety, electromagnetic compatibility, and environmental regulations across global markets, simplifying procurement for multinational facilities and reducing compliance risk.
The non-indicating design reduces visual checks in dense panels, while the durable melamine tube and high interrupt rating contribute to longer service life in high-current environments. This translates to lower spare-part stock, improved uptime, and predictable maintenance planning for OEMs and facilities with extensive electrical protection needs.