Eaton KRP-C-1900SP Fuse - Class L, 300 kAIC at 600 Vac
Part Number: KRP-C-1900SP
Quick Summary
The Eaton Bussmann KRP-C-1900SP fuse provides time-delay protection for large motors and distribution circuits. Engineers often face nuisance trips during inrush; this Class L fuse tolerates inrush while delivering reliable short-circuit clearance. It is CE-marked and RoHS compliant, with a 300 kAIC interrupt rating at 600 Vac and a 4-second response at 500% overload, offering robust protection. For panel builders and OEMs, this solution supports compliance and scalable protection while simplifying procurement and installation.
Product Information
Extended Description
KRP-C-1900SP Eaton: Eaton Bussmann Series Class L fuse, KRP-C, time-delay, current limiting fuse, 1900 A, interrupting rating of 300 kA at 600 Vac and 100 kA at 300 Vdc
Product Name
Eaton Bussmann series KRP-C fuse
Catalog Number
KRP-C-1900SP
UPC
051712605199
Product Length/Depth
10.75 in
Product Height
3.53 in
Product Width
3.53 in
Product Weight
8.25 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
1900 A
Interrupt rating
300 kAIC at 600 Vac 100 kAIC at 300 Vdc
Response time
4 sec at 500%
Voltage rating
600 Vac, 300 Vdc
Packaging type
Standard
Class
Class L
Fuse indicator
Non-indicating
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series KRP-C 601 to 2000A Class L fuse data sheet No. 1008
Feature → Business Impact → Application: Time-delay, current-limiting Class L fuse handles motor start-up surges and inrush without sacrificing protection, reducing downtime and equipment wear in high-load feeders. Application: Large motor controllers, power distribution panels, and machine centers benefit from selective coordination and minimized arc energy, improving overall plant reliability. Feature → Business Impact → Application: High interrupt rating of 300 kAIC at 600 Vac enables fast fault clearing, protecting downstream devices and enabling longer service life for feeders and pumps. Application: Heavy-load processes, packaging equipment, and conveyors. Feature → Business Impact → Application: Regulatory compliance through CE and RoHS alignment reduces procurement risk and enables global deployment. Application: Multinational facilities and OEMs scaling across regions. Feature → Business Impact → Application: Clear standardization with 10.75 in length and 3.53 in square footprint supports straightforward installation in existing Bussmann class L racks. Application: Retrofit projects and new builds seeking consistent protection and spare parts availability.
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FAQs
Install the KRP-C-1900SP in a compatible Bussmann Class L fuse holder or panel that supports a 600 Vac rating. Ensure the fuse fits the 10.75 in length and 3.53 in width footprint, and use proper protective gear during handling. The fuse is non-indicating, so plan for routine status checks and documentation as part of maintenance procedures.
Key specifications include a 1900 A amperage rating, 600 Vac maximum voltage, and a 300 kAIC interrupt rating at 600 Vac (100 kAIC at 300 Vdc). It is a time-delay fuse with a 4-second response at 500% overload, designed for selective coordination in high-current motor and distribution circuits.
Yes. The KRP-C-1900SP is CE-marked and RoHS compliant, meeting European safety, environmental, and material restrictions. This supports global procurement and regulatory compliance while preserving protection performance for high-current applications.
Best suited for large motor feeders, machine controls, and power distribution panels where inrush tolerance and fast fault clearing are needed. The current-limiting, time-delay design reduces arc energy, protecting downstream equipment and enabling reliable operation in demanding industrial environments.
The fuse measures 10.75 inches in length, with 3.53 inch width and 3.53 inch height, and weighs 8.25 pounds. Packaging is standard, and the UPC is 051712605199 to support straightforward ordering and inventory in MRO and procurement workflows.