Eaton NON-300 Fuse - Bussmann Class H, 300 A, 10 kAIC
Part Number: NON-300
Quick Summary
Eaton NON-300 fuse provides general-purpose, non-current-limiting protection for industrial electrical panels. In modern plants, the challenge is reliable interruption under fault conditions without interfering with normal inrush. This unit is CE marked for European safety compliance; while SIL and IP ratings are not specified for this model. The combination of a 300 A rating and a 10 kAIC interruption at 250 V delivers robust protection in switchgear and motor control applications, while the standard blade-end connection supports quick, error-free installation. Designed for easy procurement and integration with Bussmann Series Class H fuses in industrial protection networks.
Product Information
Extended Description
NON-300 Eaton: Eaton Bussmann Series Class K5 fuse, NON, general purpose, non-current-limiting fuses, 300 A, one-time fuse, interrupting rating of 10 kA at 250 Vac
Product Name
Eaton Bussmann series NON fuse
Catalog Number
NON-300
UPC
051712303002
Product Length/Depth
8.63 in
Product Height
2.06 in
Product Width
2.06 in
Product Weight
1.65 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
300 A
Interrupt rating
10 kAIC at 250 Vac
Voltage rating
250 V
Packaging type
Standard
Class
Class H
Connection
Blade end x blade end
Fuse indicator
Non-indicating
Quantity
1
Special features
Non current limiting
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Class H (K) Fuses Data Sheet no. 1030
Feature: 300 A amperage rating enables protection for feeders and main circuits up to this limit, reducing nuisance trips and enabling coordinated protection across distribution panels. Business Impact: Increases uptime and protects costly equipment by ensuring correct fault-current coordination in industrial power distribution. Application: Suitable for main feeders and distribution panels in manufacturing lines and process plants.Feature: 10 kAIC interrupt rating at 250 VAC allows safe interruption of high-magnitude fault currents, reducing arc flash risk and downstream damage. Business Impact: Enhances system safety and minimizes downstream equipment replacement costs. Application: Critical in motor control centers and switchgear assemblies where fault currents exceed typical levels.Feature: Non-current-limiting Class H design means inrush currents are not deliberately limited, which prevents nuisance tripping in equipment with controlled startup. Business Impact: Supports reliable operation of motors and inrush-heavy loads without compromising protection. Application: Equipment with soft-start motors and large loads in production lines.Feature: Blade end x blade end connection and standard packaging type enable quick, error-free installation in existing fuse blocks. Business Impact: Reduces commissioning time and technician labor costs. Application: Field retrofits and new panel builds in control cabinets.Feature: Compact dimensions (8.63 in length, 2.06 in width and height) with 1.65 lb weight and single-unit quantity simplify enclosure planning. Business Impact: Optimizes space in crowded panels and streamlines stocking for maintenance teams. Application: Panel builders and machine builders needing dependable, space-efficient protection.
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FAQs
The NON-300 uses blade end x blade end connections and a standard packaging type, designed to drop into common fuse holders without special adapters. Its 8.63 in length and 2.06 in width/height ensure it fits typical control panel spaces. When replacing, verify the holder is rated for 300 A and 10 kAIC at 250 VAC and that the new fuse is the same Class H, non-current-limiting variant.
A 10 kAIC interrupt rating means the fuse can safely interrupt fault currents up to 10 kiloamperes at 250 VAC, reducing arc flash risk and protecting upstream equipment. This is particularly important in power distribution panels and motor control centers where fault currents can spike, ensuring controlled shutdown without collateral damage.
Yes. The NON-300 is a general-purpose, non-current-limiting Class H fuse suitable for motor control panels and general protection tasks. Its non-current-limiting nature allows normal inrush to proceed without premature tripping, provided system coordination and upstream protection are correctly designed to match the 300 A rating.
CE marking indicates conformity with EU safety, health, and environmental requirements for electrical equipment. It helps with regulatory acceptance across European markets. Always confirm any country-specific standards or additional certifications required by your installation site alongside the CE mark.
This is a one-time, non-indicating fuse, meaning it is designed for single-use and must be replaced after operation. Keep spare NON-300 units in stock, ensure correct replacement with the same amperage, interrupt rating, and Class H designation, and inspect panel environments for heat or contamination that could affect performance.