Eaton JJN-90 Fuse - Class T, 90A at 300 Vac, 200 kAIC
Part Number: JJN-90
Quick Summary
The Eaton JJN-90 fuse provides fast-acting current-limiting protection for drives and power circuits in industrial automation settings. This helps prevent nuisance trips and downtime during motor starts and VFD events, delivering steadier line performance and reduced maintenance costs. As part of the Bussmann series, it carries CE marking and RoHS compliance and uses a Class T design optimized for selective protection of motor control and drive circuits. Built for standard low-voltage architectures, the JJN-90 supports straightforward installation with bolted blade-end connections and predictable replacement intervals, helping plants meet uptime targets and regulatory expectations without sacrificing safety or performance.
Product Information
Extended Description
JJN-90 Eaton: Eaton Bussmann series JJN fuse, Current-limiting, VFD line protection, 90 A, Class T, Non-indicating, Bolted blade end x bolted blade end, 20 kAIC at 160 Vdc, 200 kAIC at 300 V, Standard, 5, 300 V, 160 Vdc
Product Name
Eaton Bussmann series JJN fuse
Catalog Number
JJN-90
UPC
051712627900
EAN
5027590508797
Product Length/Depth
0.75 in
Product Height
2.16 in
Product Width
0.001 in
Product Weight
0.78 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
90 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
5
Special features
Rejection style
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
Feature: Current-limiting protection up to 90 A for drive and motor circuits. Benefit: Reduces fault energy and downstream damage, enabling safer, more reliable motor starts and VFD performance. Application: Suitable for VFD line protection and motor control panels, improving uptime and protecting cables and downstream devices. Feature: Class T fast-acting design. Benefit: Provides selective coordination with downstream fuses and breakers, minimizing nuisance trips while maintaining safety. Application: Essential in drive-ready feeder circuits and motor starters. Feature: High interrupt ratings—200 kAIC at 300 Vac and 20 kAIC at 160 Vdc. Benefit: Withstands large fault currents to protect equipment and personnel in high-energy environments. Application: Heavy-duty industrial distribution plus DC bus protection where applicable. Feature: Non-indicating, bolted blade ends, and 5-pack packaging. Benefit: Easy, secure installation with reduced mis-insertion risk and streamlined stocking for maintenance teams. Application: Panel assemblies and repair inventories in automation plants. Feature: Compliance and form-factor—CE marked, RoHS compliant, standard packaging. Benefit: Helps meet regulatory requirements while fitting into existing low-voltage protection schemes. Application: Regulatory-compliant installations and procurement efficiency in manufacturing environments.
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FAQs
Mount the JJN-90 using bolted blade-end connections designed for secure, low-resistance terminations. Ensure the panel space accommodates its 0.75 inch depth and 2.16 inch height, and verify alignment with standard fuse clips. Use the standard 5-pack to maintain spare parts availability and minimize downtime during maintenance or replacements.
Key ratings include 90 A amperage, 300 Vac maximum voltage, and 160 Vdc rating. Interrupt ratings are 200 kAIC at 300 Vac and 20 kAIC at 160 Vdc. It is a non-indicating fuse with Class T characteristics, tailored for current-limiting protection in motor drives and line circuits.
Yes. The JJN-90 is designed for drive protection and motor control applications, offering current-limiting protection that minimizes fault energy and improves drive reliability. Its Class T fast-acting design helps coordinate with downstream protective devices, reducing nuisance trips while safeguarding sensitive VFD circuitry.
The fuse is CE marked and RoHS compliant, aligning with European regulatory requirements. This ensures lower environmental impact and easier regulatory acceptance, supporting safer, eco-friendly procurement for automation upgrades and new panel builds.
ROI comes from reduced downtime due to fewer nuisance trips, extended equipment life from controlled fault energy, and simpler maintenance with a standardized 5-pack stocking approach. In drive-heavy lines, these factors translate to higher throughput, lower repair costs, and predictable,法规-compliant protection in ongoing operations.