Eaton NON-4 Fuse - 50 kAIC at 250 Vac for general purpose
Part Number: NON-4
Quick Summary
Eaton NON-4 fuse is a general-purpose non-current-limiting fuse designed to protect control panels and industrial equipment. It addresses the common pain point of nuisance trips and downtime on non-inductive loads by providing stable, predictable protection. This product carries CE marking and belongs to the Bussmann Class H family, with a 4 A rating and a robust 50 kA interrupt rating at 250 Vac and 125 Vdc. For engineers and procurement teams, its compact ferrule-end construction and standard packaging simplify stocking, installation, and fast replacement in automation and electrical protection applications.
Product Information
Extended Description
NON-4 Eaton: Eaton Bussmann Series Class K5 fuse, NON, general purpose, non-current-limiting fuses, 4 A, one-time fuse, interrupting rating of 50 kA at 250 Vac and 50 kA at 125 Vdc
Product Name
Eaton Bussmann series NON fuse
Catalog Number
NON-4
UPC
051712300049
EAN
5027590065399
Product Length/Depth
0.56 in
Product Height
2 in
Product Width
0.56 in
Product Weight
0.35 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
4 A
Interrupt rating
50 kAIC at 250 Vac 50 kAIC at 125 Vdc
Voltage rating
250 Vac, 125 Vdc
Packaging type
Standard
Class
Class H
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Quantity
10
Special features
Non current limiting
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Bussmann series Fuseology
Bussmann series Class H (K) Fuses Data Sheet no. 1030
Feature: 4 A Amperage Rating with 50 kAIC interrupt rating at 250 Vac and 125 Vdc → Business Impact: Delivers reliable short-circuit protection for small- to medium-load circuits, reducing the risk of equipment damage while enabling predictable maintenance cycles. Application: Ideal for control panels and general purpose circuits in automation environments. Feature: Non-current-limiting (NON) design → Business Impact: Minimizes nuisance trips on non-inductive loads, lowering unnecessary downtime and extending mean time between outages. Application: Suitable for non-motor loads and simple control logic in industrial equipment. Feature: Class H fuse family with ferrule end connections → Business Impact: Ensures fast, secure termination with compatible ferrule hardware, lowering installation time and improving connection reliability. Application: Fits standard Bussmann Class H fuse holders and ferrule terminations in panel assemblies. Feature: Packaging type Standard and Quantity 10 per package → Business Impact: Simplifies procurement planning, spare part kits, and warehouse stocking for maintenance teams. Application: Convenient for OEMs and service providers managing multiple control panels. Feature: Compliance and safety features (CE Marked; 4 A rating; 50 kAIC interrupt) → Business Impact: Supports regulatory alignment and reduces compliance risk in global deployments. Application: Suitable for worldwide deployments in electrical protection and circuit control systems.
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FAQs
The NON-4 uses ferrule end connections and a compact footprint. Use compatible Bussmann Class H fuse holders, ensure ferrule sizes match the terminals, and mount in a standard panel slot. Inspect the 0.56 in depth and 2 in height dimension to confirm fit before replacement.
It is rated for 4 A with an interrupt rating of 50 kAIC at 250 Vac and 50 kAIC at 125 Vdc. The voltage rating is 250 Vac / 125 Vdc, and the fuse is Class H with non-current-limiting behavior and non-indicating status.
Yes. Its general-purpose, non-current-limiting design is appropriate for non-inductive loads in control panels and automation equipment. For circuits with high inrush or motor loads, consider evaluating inrush characteristics and alternative fuse types to avoid nuisance trips.
The fuse is CE Marked as part of the Bussmann series. This helps support regulatory compliance in many international deployments and aligns with typical European safety requirements.
The data indicates a Not Applicable warranty for this model and notes it as a one-time fuse. Plan for replacement upon fuse operation or failure and maintain spare quantities in line with the standard packaging (10 per pack).