Eaton DFJ-350 High Speed Fuse - 200 kAIC
Part Number: DFJ-350
Quick Summary
Eaton DFJ-350 high speed fuse provides fast fault protection for motor drives and industrial controls. In demanding manufacturing environments, nuisance trips and slower responses can drive unplanned downtime and repair costs. UL Listed and CSA Certified safety verifications, along with CE RoHS compliance, support global regulatory alignment. Designed for up to 600 Vac or 450 Vdc, it limits arc energy during faults and helps protect downstream drives. For OEMs and panel integrators, this device delivers reliable protection without sacrificing installation simplicity or serviceability. With clip-lock mounting, a melamine tube, and Class J compatibility, it accelerates panel assembly and retrofit projects. By combining high interrupt ratings with compact form, it supports efficient, scalable protection across automation architectures.
Product Information
Extended Description
DFJ-350 Eaton: Eaton Bussmann series DFJ high speed fuse, 600 Vac or less, 450 Vdc or less, 350A, 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-350
UPC
051712653954
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
350 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-350
DFJ-350~DRIVE FUSE
Datasheet - FNQ-30
The DFJ-350 delivers high-speed fault interruption, pairing a 350 A amperage rating with a 200 kAIC interrupt rating at 600 Vac. This combination minimizes arc energy and accelerates fault clearance, protecting motor drives, power electronics, and downstream switching devices from surge damage. The business impact is clearer uptime, fewer emergency service calls, and longer asset life in demanding automation environments. Durable construction and installation efficiency come from a melamine fuse tube and Class J face, engineered for rugged panel duty. Clip-lock mounting provides secure retention in tight enclosures and simplifies field replacement during scheduled maintenance. The non-indicating design keeps the package compact in space-limited panels, reducing wiring complexity and enabling quicker redress after a fault. Regulatory compliance and safety are addressed by UL Listed and CSA Certified marks, with CE RoHS alignment for global procurement. This combination removes compliance guesswork from spec sheets and supports global supply chains for OEMs and service providers. The DFJ-350 also inherits Bussmann series lineage and compatibility with existing DFJ components, easing lifecycle management. Application scope and efficiency: the DFJ-350 is ideal for medium-to-large motor-drive circuits, industrial controls, and panel boards in manufacturing, water treatment, and process automation. It handles 350 A continuous operation while tolerating peak fault currents, enabling compact protection schemes without oversized fuses. Designers can consolidate protection across multiple drives, improving spares strategy and reducing inventory fragmentation. Maintenance and retrofit considerations: standard packaging and the clip-lock interface cut install time during upgrades and replacements. The fuse’s non-indicating nature reduces diagnostic steps when servicing populated panels, while UL/CSA/CE RoHS compliance minimizes cross-border logistics and warranty concerns. Overall, the DFJ-350 delivers predictable protection outcomes with lower lifecycle costs.
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FAQs
The DFJ-350 uses a clip-lock connection and a Class J footprint, enabling secure mounting in a wide range of panels. Its standard packaging supports straightforward field replacement, minimizing downtime during upgrades. This design also harmonizes with other Bussmann DFJ devices, simplifying stock management and maintenance planning for OEMs and service teams.
Key specifications include a 350 A amperage rating and a 200 kAIC interrupt rating at 600 Vac, with a 450 Vdc rating. The device is suitable for 600 Vac or less and 450 Vdc or less, delivering fast fault interruption to protect motor drives, drives, and associated power electronics in automated systems.
Yes. The DFJ-350 is UL Listed and CSA Certified, with CE RoHS marking. This combination supports safe operation, regulatory compliance across regions, and streamlined procurement for multinational facilities, manufacturers, and panel builders.
Best suited for medium-to-large motor-drive circuits, industrial controls, and control panels in manufacturing, water treatment, and process automation. It provides fast fault interruption, compact form factor, and reliable protection without oversizing, helping to optimize panel space and improve overall line efficiency.
The DFJ-350 reduces downtime by shortening fault responses, lowers maintenance labor through straightforward clip-lock installation, and minimizes replacement costs with high interrupt ratings. Its standard packaging and broad regulatory compliance also support lean spares inventories and faster cross-border deployments, delivering predictable, long-term cost savings.