Eaton JJN-150 Fuse - Class T, 20 kAIC at 160 Vdc
Part Number: JJN-150
Quick Summary
The Eaton JJN-150 fuse is a current-limiting device that protects VFD power circuits in industrial controls. Engineers often struggle with nuisance trips and downtime when protection is too slow or rated incorrectly for variable loads. This fuse carries CE Marking and RoHS compliance, supporting regulatory alignment, along with its Class T designation and high interrupt ratings for reliable fault clearance. Designed for easy integration in Bussmann series gear, it enables compact installations and straightforward maintenance. This combination delivers measurable business value by reducing downtime and inventory costs, while meeting stringent safety standards.
Product Information
Extended Description
JJN-150 Eaton: Eaton Bussmann series JJN fuse, Current-limiting, VFD line protection, 150 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-150
UPC
051712627160
Product Length/Depth
2.44 in
Product Height
0.88 in
Product Width
0.88 in
Product Weight
0.0088 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
150 A
Interrupt rating
20 kAIC at 160 Vdc 200 kAIC at 300 Vac
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
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Current-limiting design quickly clamps fault currents, protecting conductors and downstream electronics. This reduces arc energy and potential collateral damage, improving equipment uptime and safety in drive-start/stop cycles. Used in VFD line protection and motor-control panels, it supports reliable drive operation under fault conditions. High interrupt rating of 20 kAIC at 160 Vdc (and 200 kAIC at 300 Vac) enables fast fault clearance without sacrificing selectivity. This improves protection for DC bus and AC line sections in mixed-voltage drives, enabling safer ramp-downs and reduced fuse replacement frequency. Class T construction with a 150 A rating offers reliable overload protection for standard industrial loads, reducing nuisance trips during inrush and startup transients in control panels and drive circuits. The bolted blade-end design paired with non-indicating status simplifies panel installation and service. The standard packaging and compact footprint (2.44 in L, 0.88 in H/W) ease replacement in crowded housings, while CE Mark and RoHS compliance streamline regulatory documentation. Compatibility with the Bussmann series catalog supports consistent sourcing and minimized part numbers, delivering lower overall inventory costs and faster maintenance cycles.
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FAQs
The JJN-150 is a 1–piece Bussmann series fuse with bolted blade ends, designed for motor control panels, drives, and VFD protection in industrial power systems. It fits standard Class T protection schemes and pairs with replacement parts in the Bussmann catalog for reliable, field-compatible installations. Ensure the footprint is 2.44 in length and that the bolted blade terminals align with your panel hardware.
The current-limiting action clamps fault currents quickly, reducing arc energy and protecting downstream electronics and wiring. This supports faster fault clearance, lowers insulation stress on drives, and minimizes unnecessary downtime due to nuisance trips. For VFDs, this means safer startups, longer drive life, and lower maintenance costs over time.
Yes. The JJN-150 is rated for 300 Vac and 160 Vdc, providing robust protection across mixed-voltage drive systems. The 150 A rating paired with a 20 kAIC at 160 Vdc ensures rapid fault clearing on DC links, while the higher 200 kAIC rating at 300 Vac supports high-energy AC fault scenarios common in industrial power distribution.
The JJN-150 is CE Marked and RoHS compliant, aligning with European safety, environmental, and regulatory requirements. These certifications help streamline procurement, ensure regulatory conformance for automated systems, and support ongoing compliance in facilities employing EU standards and RoHS-restricted materials.
Follow standard maintenance practices for protective fuses: replace any fuse after a fault event or if the device shows signs of degradation, keep spare JJN-150 units on hand for rapid swap-out, and verify panel wiring integrity during replacement. Because the unit is non-indicating, implement a periodic inspection routine to confirm circuit protection status through system diagnostics and current flow checks.