Eaton JJN-800 Fuse - 100 kAIC @ 170 Vdc, Class T
Part Number: JJN-800
Quick Summary
The Eaton JJN-800 fuse provides high-current, current-limiting protection for VFD line circuits in industrial controls. Field engineers often wrestle with nuisance trips or downstream damage when protection devices aren’t fast enough or poorly coordinated; this fuse mitigates that risk. CE marking and RoHS compliance meet global regulatory expectations, while the Class T timing and bolted blade-end design ensure reliable, repeatable protection in harsh environments. With an 800 A rating and flexible voltage options, this device streamlines panel design, procurement, and maintenance, delivering predictable performance and reduced downtime across motor drives and power conversion applications.
Product Information
Extended Description
JJN-800 Eaton: Eaton Bussmann series JJN fuse, Current-limiting, VFD line protection, 800 A, Class T, Non-indicating, Bolted blade end x bolted blade end, 100 kAIC at 170 Vdc, 200 kAIC at 300 V, Standard, 1, 300 V, 170 Vdc
Product Name
Eaton Bussmann series JJN fuse
Catalog Number
JJN-800
UPC
051712627184
Product Length/Depth
3.38 in
Product Height
1.75 in
Product Width
1.75 in
Product Weight
0.85 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
800 A
Interrupt rating
100 kAIC at 170 Vdc 200 kAIC at 300 Vac
Voltage rating
300 Vac, 170 Vdc
Packaging type
Standard
Class
Class T
Connection
Bolted blade end x bolted blade end
Fuse indicator
Non-indicating
Quantity
1
Special features
Rejection style
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
JJN-100~TRON FAST ACTING FUSE CLASS T
Feature 800 A current rating → Business Impact Protects high‑current drives and minimizes fuse nuisance trips by handling peak loads without compromising protection. Application VFD line protection in motor control centers and power conversion racks. Long‑tail keywords: high‑current fuse for VFDs, 800 A industrial fuse, current‑rating for motor drives. Feature 100 kAIC at 170 Vdc and 200 kAIC at 300 Vac → Business Impact Enables robust fault interruption across DC link and AC input with selective coordination, reducing upstream disconnections. Application Protection for mixed DC/AC bussing in drive systems. Feature Class T current‑limiting and non‑indicating design → Business Impact Fast response times protect downstream components while staying unobtrusive in maintenance cycles. Application Panel installations where quick fault clearing is essential without visual fuse indication. Feature Bolted blade end x bolted blade end → Business Impact Secure, vibration‑resistant terminations that simplify field wiring and improve reliability. Application Environments with vibration and cabinet‑level shocks. Feature Rejection style → Business Impact Prevents incorrect substitutions, ensuring only Bussmann JJN devices are used in corresponding holders. Application Standardized protection across multi‑line control panels. Feature Compliances CE Marked, RoHS Compliant → Business Impact Regulatory alignment for global deployments, reducing risk during audits and customer acceptance. Application Global manufacturing and export programs. Feature Dimensions and packaging (3.38 in L, 1.75 in W/H) and 1‑pack → Business Impact Easy footprint planning, consistent installation, and straightforward stocking. Application Panel builders and systems integrators. This structured approach reflects real‑world use in electrical protection & circuit control environments.
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FAQs
The JJN-800 is designed for VFD line protection and motor drive circuits in industrial control panels. Its 800 A rating and Class T fast‑act timing support reliable interruption of fault currents while minimizing nuisance trips in high‑demand drives. It’s ideal for systems that require robust protection without excessive downtime, such as CNC machines, conveyors, and packaging lines.
The fuse provides an 800 A amperage rating with an interrupt rating of 100 kAIC at 170 Vdc and 200 kAIC at 300 Vac. It accommodates 300 Vac and 170 Vdc operation, enabling protection across mixed AC/DC drive circuits. This combination supports safe, coordinated shutoff in both inverter-fed and DC link environments.
The JJN-800 carries CE marking and RoHS compliance, ensuring regulatory alignment for global deployments. These certifications support market access and supplier qualification processes, reducing compliance risk in multi‑site projects and audits.
Bolted blade ends provide secure termination and resistance to loosening under vibration, which is common in industrial enclosures. This simplifies on‑site wiring, improves reliability in harsh environments, and supports fast, repeatable field assembly when mounting in panel boards or switchgear.
Using the JJN-800 yields improved uptime through fast fault clearing, reduces damage to downstream components, and simplifies procurement with a standard, high‑current fuse family. Its rejection styling minimizes incorrect substitutions, helping maintenance teams avoid compatibility issues and ensuring consistent protection across fleets of drives.