Eaton JJN-450 Fuse - Class T, 200 kAIC at 300 Vac
Part Number: JJN-450
Quick Summary
Eaton JJN-450 fuse provides current-limiting protection for motor drives and power systems. Engineers often face nuisance trips or insufficient protection when integrating VFDs into compact control panels. This CE marked and RoHS compliant device features a Class T safety profile with high interrupt ratings to safeguard critical loads, delivering reliable protection with easy procurement through the Bussmann series ecosystem. In practice, the JJN-450 reduces downtime and repair costs while streamlining installation and maintenance for industrial applications.
Product Information
Extended Description
JJN-450 Eaton: Eaton Bussmann series JJN fuse, Current-limiting, VFD line protection, 450 A, Class T, Non-indicating, Bolted blade end x bolted blade end, 20 kAIC at 160 Vdc, 200 kAIC at 300 V, Standard, 1, 300 V, 160 Vdc
Product Name
Eaton Bussmann series JJN fuse
Catalog Number
JJN-450
UPC
051712627214
Product Length/Depth
3.06 in
Product Height
1.25 in
Product Width
1.25 in
Product Weight
0.15 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
450 A
Interrupt rating
200 kAIC at 300 Vac 20 kAIC at 160 Vdc
Voltage rating
300 Vac, 160 Vdc
Packaging type
Standard
Class
Class T
Connection
Bolted blade end x bolted blade end
Fuse indicator
Non-indicating
Quantity
1
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
JJN-100~TRON FAST ACTING FUSE CLASS T
The 450 A current-limiting fuse design delivers fast fault interruption, which minimizes damage to conductors and drive electronics, improving overall system reliability and uptime in motor drive applications. This translates to reduced repair costs and shorter maintenance windows in plant environments where VFD line protection is critical for productivity and safety. The Class T fuse class provides predictable protection characteristics, supporting consistent coordination with upstream protective devices and enabling safer, more repeatable commissioning in control panels. Bolted blade end connections offer robust mechanical stability and electrical integrity during installation, lowering the risk of connection issues and improving serviceability in panel builds and retrofit projects. With a 300 Vac / 160 Vdc dual voltage rating and high interrupt ratings (200 kAIC at 300 Vac, 20 kAIC at 160 Vdc), the JJN-450 supports both AC mains and DC bus protection for versatile feeder protection. This compatibility reduces inventory complexity for contractors and OEMs while ensuring compliance with standard bus bar configurations. CE marking and RoHS compliance further assure regulatory alignment for global deployments, simplifying audits and customer acceptance in regulated environments. Industry professionals also benefit from the Bussmann series ecosystem, which streamlines stocking, cross-referencing, and long-term spare-part planning for electrical protection products.
Get a Quick Quote for a Eaton JJN-450
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton JJN-450?
Enquire Now
FAQs
When installing the JJN-450, use the bolted blade end connections to ensure a secure mechanical and electrical contact. Torque specifications should follow OEM guidelines, and provide adequate clearance for heat dissipation and easy maintenance access. Compatibility with standard bus bars helps simplify retrofits and minimizes panel modification time, reducing project lead times.
The JJN-450 is a current-limiting Class T fuse rated at 450 A with high interrupt ratings, specifically 200 kAIC at 300 Vac and 20 kAIC at 160 Vdc. This combination minimizes fault energy and protects motor drives and power electronics from short-circuit and overload events, while enabling safe startup and reliable operation in VFD-fed systems.
Yes. The JJN-450 is CE marked and RoHS compliant, aligning with European regulatory requirements and reducing compliance risk for global deployments. This support is particularly important for panel builds in regulated markets and for projects prioritizing environmental and safety standards.
The JJN-450 is ideal for VFD line protection, motor drive feeders, and power distribution in industrial control panels. Its 300 Vac / 160 Vdc ratings and Class T characteristics make it a robust choice for both AC mains and DC bus protection in manufacturing lines, packaging, and process automation environments.
Access Eaton Bussmann catalogs and data sheets for the JJN-450, including Low Voltage Branch Circuit Fuse chapters and JJN-series specifications. Additional resources include RoHS search tools and the Bussmann Fuseology multimedia content, which aid in installation planning, compatibility checks, and ongoing maintenance.