Eaton KFT Cable Limiter - 200 kAIC at 600 Vac
Part Number: KFT
Quick Summary
Eaton KFT Cable Limiter provides rapid fault current protection for high-density cable runs in electrical distribution panels. In the field, preventing arc faults and minimizing downtime in switchgear is a common challenge for engineers and maintenance teams. This model is RoHS compliant and supports a high interrupt rating of 200 kAIC at 600 Vac, meeting stringent safety and reliability requirements. By leveraging the Bussmann series design, you gain predictable performance, simplified installation, and reduced risk in industrial power distribution. Designed for panel builders and industrial control centers, the KFT integrates with copper or aluminum cables up to 250 kcmil and supports center bolt end x offset bolted end connections, streamlining field wiring and commissioning.
Product Information
Extended Description
KFT Eaton: Eaton Bussmann series KFT cable limiter, 200 kAIC at 600 Vac, Center bolt end X offset bolted end, Cable: copper: 250 kcmil, Aluminum: 250 kcmil, Non indicating
Product Name
Eaton Bussmann series KFT cable limiter
Catalog Number
KFT
UPC
051712177405
Product Length/Depth
2.5 in
Product Height
1.75 in
Product Width
2.75 in
Product Weight
4.25 lb
Warranty
Not Applicable
Compliances
RoHS Compliant
Interrupt rating
200 kAIC at 600 Vac
Material
Cable: Copper or Aluminum
Wire size
250 kcmil Cu, 250 kcmil Al
Connection
Center bolt end x offset bolted end
Fuse indicator
Non-indicating
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - KFT
Feature: High interrupt rating of 200 kAIC at 600 Vac. Business Impact: Enables protection of downstream gear and feeders from high-energy faults, reducing equipment damage and downtime in critical power paths. Application: Switchgear, motor control centers, and large distribution panels where fault currents exceed lower ratings. Feature: Cable compatibility with copper or aluminum up to 250 kcmil. Business Impact: Flexible wiring options simplify procurement, reduce inventory complexity, and lower installation costs. Application: Heavy feeder applications in data centers, manufacturing floors, and process plants. Feature: Center bolt end x offset bolted end connection. Business Impact: Streamlines mounting and alignment in tight panels, minimizing field rework and mis-wiring risk. Application: Retrofit projects and new installations in compact switchgear enclosures. Feature: Non-indicating fuse indicator. Business Impact: Removes unnecessary indicator hardware in high-volume installations, lowering maintenance steps while relying on external monitoring where needed. Application: Large installations with centralized status monitoring. Feature: RoHS compliant and Bussmann series integration. Business Impact: Ensures regulatory compliance for hazardous substances and compatibility with established Bussmann catalogs and datasheets, improving sourcing and support. Application: Global deployments across electrical distribution networks and control panels.
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FAQs
The KFT is designed for copper or aluminum conductors up to 250 kcmil and uses a center bolt end x offset bolted end connection. For best results, ensure mounting clearance fits the 2.5 in product length, 1.75 in height, and 2.75 in width, and align bolt patterns with the enclosure openings to avoid stress during tightening. This reduces field rework and ensures secure electrical contact.
A 200 kAIC at 600 Vac rating means the device can interrupt high fault currents without sustaining damage, protecting downstream equipment and minimizing downtime. This is especially important in switchgear, MCCs, and large distribution panels where fault currents can spike rapidly, enabling safer fault isolation and faster restoration after disturbances.
Yes. The KFT cable limiter supports copper or aluminum conductors up to 250 kcmil, providing flexibility for mixed-material installations and simplifying sourcing for large feeder applications in industrial plants and data centers.
Non-indicating means there is no built-in visual fuse status indicator on the device itself. For status awareness, plan external monitoring or supervisory systems to verify fault protection integrity, while benefiting from the compact, straightforward mounting and wiring the KFT offers.
Key resources include the Bussmann series catalogs and the Eaton specification sheet for KFT. Look for the Bussmann series complete full line catalog no. 1007 and the Eaton Specification Sheet - KFT to verify dimensions, wiring, and installation guidelines, ensuring correct integration in your panel builds.