Eaton KRP-C-4000SP Fuse - Class L, 4000 A, 300 kAIC
Part Number: KRP-C-4000SP
Quick Summary
The Eaton KRP-C-4000SP fuse provides high-current protection for industrial power circuits up to 600 V. Engineers often struggle to balance inrush tolerance with robust short‑circuit protection, risking downtime and cost. This Class L time-delay, current-limiting device is RoHS compliant and CE marked, aligning with global regulatory requirements and safer product lifecycles. Its bolted blade end connections and standard packaging simplify installation, while the 4000 A rating plus a 300 kAIC interrupt capacity support scalable protection in power distribution panels. This product is particularly well-suited for large motor drives and high-current feeders, delivering reliability where downtime directly impacts productivity.
Product Information
Extended Description
KRP-C-4000SP Eaton: Eaton Bussmann Series Class L fuse, KRP-C, time-delay, current limiting fuse, 4000 A, interrupting rating of 300 kA at 600 Vac
Product Name
Eaton Bussmann series KRP-C fuse
Catalog Number
KRP-C-4000SP
UPC
051712605403
Product Length/Depth
10.75 in
Product Height
5.79 in
Product Width
5.79 in
Product Weight
22.15 lb
Warranty
Not Applicable
Compliances
RoHS Compliant CE Marked
Amperage Rating
4000 A
Interrupt rating
300 kAIC at 600 Vac
Response time
4 sec at 500%
Voltage rating
600 V
Packaging type
Standard
Class
Class L
Connection
Bolted blade end x bolted blade end
Fuse indicator
Non-indicating
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series KRP-C 2001 to 6000A Class L fuse data sheet No. 1009
Feature → Time-delay, current-limiting Class L fuse provides controlled fault clearance while tolerating startup inrush. Business impact → Reduces nuisance trips and unplanned downtime, improving line reliability in heavy-load panels. Application → Ideal for motor drives and power distribution feeders in manufacturing environments. Feature → The 4000 A rating with a 300 kAIC interrupt rating at 600 Vac delivers robust protection against high fault currents without compromising selectivity. Business impact → Protects expensive equipment from arc energy, extends service life, and minimizes warranty exposure. Application → Suitable for large feeders, MCCs, and service entrances in industrial plants. Feature → RoHS compliance and CE marking address regulatory requirements and end-of-life considerations for global deployments. Business impact → Streamlines cross-border sourcing and reduces risk of non-conformance penalties. Application → Compatible with multinational facilities, system integrators, and procurement teams seeking standardized protection devices. Feature → Bolted blade end x bolted blade end connections and standard packaging simplify field installation and panel integration. Business impact → Decreases installation time, reduces vibration-related loosening risks, and lowers total cost of ownership through easier replacement. Application → Ideal for retrofit projects or new panel builds in electrical protection and circuit control networks. Feature → A 4-second response time at 500% of rated current provides rapid fault clearance in high-inrush environments. Business impact → Limits fault energy, protects downstream equipment, and supports safer maintenance windows. Application → Best suited for control cabinets, switchgear, and machine automation setups in harsh industrial settings.
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FAQs
The KRP-C-4000SP uses bolted blade end x bolted blade end connections and ships in standard packaging suitable for retrofit or new builds. Install in power panels with appropriate busbar spacing; the product dimensions are 10.75 in long, 5.79 in high and wide, and it weighs about 22.15 lb, facilitating straightforward handling.
This fuse features time-delay behavior and a current-limiting design that tolerates startup surges without compromising protection. With a 4000 A rating and 300 kAIC interrupt capability at 600 Vac, it minimizes nuisance trips during motor starts while ensuring rapid fault clearance when faults occur, reducing downtime and equipment damage.
Yes. The KRP-C-4000SP is rated for 600 V operation and 4000 A continuous current, with a 300 kAIC interrupt rating. It is designed for robust protection in industrial environments and carries RoHS compliance and CE marking for global applicability and regulatory alignment.
The KRP-C-4000SP is RoHS compliant and CE marked, meeting EU regulatory requirements for hazardous substances and essential health and safety standards. This supports global deployment across multinational facilities and simplifies cross-border procurement and installation processes.
Adopting the KRP-C-4000SP offers improved uptime due to reduced nuisance trips and fast fault clearing, protecting downstream equipment and extending component life. Although the warranty is listed as Not Applicable, the fuse’s longevity, high interrupt rating, and straightforward installation contribute to lower maintenance labor costs and lower total cost of ownership over time.