Eaton KRP-C-1200SP Fuse - Class L, 600 Vac 300 kAIC
Part Number: KRP-C-1200SP
Quick Summary
KRP-C-1200SP fuse provides time-delay current-limiting protection for industrial power systems and control panels. Engineers often struggle to prevent nuisance trips when faced with inrush and fluctuating loads. This Eaton Bussmann Class L fuse is CE marked and RoHS compliant, with a 1200 A rating and 300 kAIC interrupt rating at 600 Vac, delivering reliable protection for high-energy circuits. By combining robust protection with easy bolted connections, it supports safer operation, reduced maintenance costs, and improved uptime for critical equipment. For OEMs and integrators, it pairs well with large motor feeders and control panel assemblies needing fast, coordinated protection.
Product Information
Extended Description
KRP-C-1200SP Eaton: Eaton Bussmann Series Class L fuse, KRP-C, time-delay, current limiting fuse, 1200 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-1200SP
UPC
051712605120
Product Length/Depth
10.75 in
Product Height
2.78 in
Product Width
2.78 in
Product Weight
0.001 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
1200 A
Interrupt rating
300 kAIC at 600 Vac 100 kAIC Vdc
Response time
4 sec at 500%
Voltage rating
600 Vac, 300 Vdc
Packaging type
Standard
Class
Class L
Connection
Bolted blade end x bolted blade end
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: Time-delay, current-limiting Class L design. Benefit: Reduces nuisance trips during motor inrush and startup transients, enabling smoother operation and longer equipment life. Application: Large motor feeders and power distribution where selective coordination is essential. Feature: 1200 A amperage rating. Benefit: Handles substantial current without compromising protection, enabling compact protection schemes for high-demand circuits. Application: Main feeders and heavy load circuits in industrial environments. Feature: 600 Vac / 300 Vdc voltage rating. Benefit: Provides versatile protection across AC and DC sections of a system, supporting mixed-voltage installations. Application: Industrial controls and machinery with mixed supply requirements. Feature: Interrupt rating 300 kAIC at 600 Vac and 100 kAIC at 300 Vdc. Benefit: High fault-current withstand ensures safety of equipment and distribution networks under short-circuit conditions. Application: Data centers, manufacturing lines, and heavy-duty feeders. Feature: Bolted blade end x bolted blade end connections. Benefit: Secure, vibration-resistant installation with repeatable torque and reliable contact stability. Application: Vehicle-mounted, panel-integrated, and cabinet installations requiring rigid interconnections. Feature: CE Marked and RoHS Compliant. Benefit: Regulatory alignment and reduced compliance risk for global deployments. Application: OEMs pursuing global market access. Feature: Compact form with 10.75 in length and 2.78 in square footprint. Benefit: Easier rack/panel fit and faster installation, lowering labor costs. Application: Control panels and compact distribution enclosures. Feature: Weight and packaging details. Benefit: Lightweight handling reduces shipping and field installation effort. Application: Field service and modular panel builds.
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FAQs
KRP-C-1200SP uses bolted blade end x bolted blade end connections and standard packaging. For reliable installation, ensure clean mating surfaces, proper torque per fuse specification, and correct alignment with the busbar ends. Use compatible tools and verify secure seating to prevent contact resistance and heat buildup during high-current conditions.
Key specs include a 1200 A amperage rating, 600 Vac voltage rating, and an interrupt rating of 300 kAIC at 600 Vac plus 100 kAIC at 300 Vdc. It is a time-delay, current-limiting Class L device with a typical response time of about 4 seconds at 500% overload, suitable for motor inrush and transient protection.
Yes. The Class L time-delay design provides selective coordination for motor feeders, reducing nuisance trips while offering strong fault-current interruption. Its 1200 A rating and high interrupt capability support large motors and energized loads in industrial control panels and distribution assemblies.
The fuse is CE marked and RoHS compliant, meeting European regulatory requirements and contaminant controls. These certifications help ensure compliance in global installations and simplify cross-border procurement for OEMs and integrators.
By reducing nuisance trips, extending equipment life, and enabling reliable selective protection, the KRP-C-1200SP minimizes downtime and maintenance costs. Its high fault-current rating also lowers the likelihood of cascading failures, delivering meaningful long-term operating savings for industrial systems.