Eaton DFJ-250 High Speed Fuse - UL Listed, 600 Vac/450 Vdc
Part Number: DFJ-250
Quick Summary
The Eaton DFJ-250 high-speed fuse provides fast-acting overcurrent protection for electrical drives and industrial power circuits. This helps prevent costly downtime by quickly interrupting fault currents while minimizing nuisance tripping in normal operation. The DFJ-250 carries UL Listed and CSA Certified marks and is CE marked RoHS compliant, ensuring global compliance. The device aligns with Class J fusing standards and Clip-lock connections, offering reliable mounting in standard panels. Designed for 600 Vac or less and up to 450 Vdc, it supports motor drives, inverters, and power distribution applications. With a Bussmann series lineage, it offers proven performance in harsh industrial environments. This translates to measurable reductions in maintenance costs and faster field replacements.
Product Information
Extended Description
DFJ-250 Eaton: Eaton Bussmann series DFJ high speed fuse, 600 Vac or less, 450 Vdc or less, 250A, 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-250
UPC
051712653480
Product Length/Depth
2.13 in
Product Height
7.5 in
Product Width
2.13 in
Product Weight
1.55 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Certifications
UL Listed CSA Certified
Amperage Rating
250 A
Interrupt rating
100 kAIC 450 Vdc 200 kAIC at 600 Vac
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-250
DFJ-250~DRIVE FUSE
Datasheet - FNQ-30
Feature: 250 A rating with high interrupt capability (100 kAIC at 450 Vdc and 200 kAIC at 600 Vac). Business Impact: Provides rapid fault clearance, protecting conductors and preventing collateral damage in demanding drive systems. Application: motor drives, servo controllers, and inverter panels. Feature: Clip-lock connection and Class J form factor. Business Impact: Simplifies field installation and reliable seating in standard holders, reducing commissioning time. Application: retrofit and new installations in industrial control cabinets. Feature: Voltage rating of 600 Vac or less and 450 Vdc or less. Business Impact: Aligns with common industrial standards, reducing design variability and ensuring consistent protection across equipment. Application: three-phase power distribution and motor control centers. Feature: Melamine tube material. Business Impact: Strong arc and temperature resistance, delivering durable performance in high-energy switching environments. Application: industrial protection in harsh factories and processing lines. Feature: Certifications and compliance (UL Listed, CSA Certified, CE RoHS). Business Impact: Procurement confidence and regulatory peace of mind across global supply chains. Application: regulated manufacturing sectors and cross-border projects. Feature: Physical size and packaging (2.13 in length/depth, 2.13 in width, 7.5 in height; standard packaging). Business Impact: Predictable spares planning and BOM accuracy, reducing downtime during replacements. Application: maintenance spares for large facilities and OEM assemblies.
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FAQs
The DFJ-250 is a Class J, clip-lock fuse designed for standard panel installations. It fits typical Class J holders and uses a clip-lock connection for quick, secure seating. With a 250 A rating and high interrupt capability, it is suitable for motor drives, drives and inverter systems, and other industrial power distribution panels where rapid fault clearing is critical.
DFJ-250 provides up to 100 kAIC at 450 Vdc and 200 kAIC at 600 Vac, with an amperage rating of 250 A. This enables fast interruption of high fault currents, protecting conductors, motor windings, drives, and power electronics from damage during short circuits or severe overloads.
Yes. DFJ-250 carries UL Listed and CSA Certified marks and is CE marked RoHS compliant. This combination supports regulatory compliance, safe supplier qualification, and easier cross-border procurement for global manufacturing facilities and systems integrators.
DFJ-250 is well-suited for motor drives, servo drives, inverter systems, and general power distribution panels in industrial settings. Its high interrupt ratings, Class J form factor, and clip-lock installation streamline protection in demanding environments like packaging, material handling, and process automation.
With robust protection against high fault currents, DFJ-250 minimizes equipment damage and unplanned downtime. Its standardized Class J/clip-lock design simplifies replacements, reduces spare part variety, and supports faster maintenance cycles, delivering measurable ROI through improved uptime and lower lifecycle costs.