Eaton KFM Cable Limiter - 200 kAIC at 600 Vac

Part Number: KFM
Manufacturer
Eaton
Part number
KFM

Quick Summary

Eaton KFM cable limiter protects power systems by interrupting fault currents in industrial electrical feeders. In large facilities, downtime and costly fuse replacements magnify maintenance budgets, making reliable protection essential. This model is RoHS compliant and rated for 200 kAIC at 600 Vac, aligning with common electrical protection standards. The device accepts copper or aluminum conductors up to 750 kcmil, with a center bolt end and offset bolted end for flexible mounting in crowded switchgear enclosures. Its compact footprint and clear installation drawings help expedite procurement and commissioning, while Eaton’s datasheets and catalogs support field engineers with accurate component selection and lifecycle planning.

Product Information

Extended Description

KFM Eaton: Eaton Bussmann series KFM cable limiter, 200 kAIC at 600 Vac, Center bolt end X offset bolted end, Cable: copper: 750 kcmil, Aluminum: 750 kcmil, Non indicating
Product Name
Eaton Bussmann series KFM cable limiter
Catalog Number
KFM
UPC
051712651011
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
Voltage rating
600 V
Material
Cable: Copper or Aluminum
Wire size
750 kcmil Cu, 750 kcmil Al
Connection
Center bolt end x offset bolted end
Fuse indicator
Non-indicating
Feature: High interrupt rating of 200 kAIC at 600 Vac provides rapid fault clearance, protecting upstream transformers, feeders, and switchgear from damaging arc energy. This reliability translates into measurable uptime gains, reduced maintenance bursts, and safer, more predictable plant operation in demanding manufacturing environments. Feature: Copper or aluminum conductors up to 750 kcmil are supported, enabling direct integration with common feeder sizes and minimizing splice points. The resulting installation efficiency lowers material costs and reduces cabinet clutter in switchgear rooms. Feature: Center bolt end with offset bolted end offers flexible wiring and simplified mounting in crowded enclosures. This improves field ergonomics, speeds commissioning, and reduces the likelihood of misalignment during high-density installs. Feature: Non-indicating fuse indicator simplifies the device and minimizes cosmetic wear in harsh environments. While status monitoring must be conducted through separate diagnostics, this design reduces panel complexity and maintenance concerns in rugged installations. Feature: RoHS compliance aligns with environmental and material restrictions, and Eaton provides catalogs, datasheets, and specification sheets to accelerate specification and procurement. This combination supports faster project kickoffs, easier compliance audits, and assured interoperability with other Bussmann series devices. Feature: Compatibility with standard Bussmann series accessories and common 750 kcmil feed configurations enhances stock-to-site readiness. This ensures seamless integration with existing protection schemes and reduces engineering time during retrofit projects.

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FAQs

The Eaton KFM cable limiter supports copper or aluminum conductors up to 750 kcmil, enabling direct integration with common feeder sizes without multiple splices. Installation relies on a center bolt end with an offset bolted end, which provides flexible mounting in crowded enclosures. Proper alignment and torque per site standards ensure reliable protection and minimize commissioning time by leveraging the device’s compact footprint and documented installation procedures.
KFM delivers a 200 kAIC interrupt rating at 600 Vac, with a 600 V voltage rating. This means it can safely interrupt high-energy fault currents typical in industrial feeders, protecting downstream equipment from arc energy and shortening fault clearing times. For sites with heavy motor loads or long feeder runs, this specification translates into improved uptime and reduced risk of equipment damage.
KFM is well-suited for industrial power distribution and switchgear environments that use large feeder conductors up to 750 kcmil, including low- to mid-voltage networks within data centers and manufacturing plants. Its 600 V rating and 200 kAIC capability provide robust protection where dense cabling and high fault energy are concerns, while its compact form aids in retrofits and new builds alike.
The provided data confirms RoHS compliance for the KFM cable limiter, which supports regulatory requirements for restricted hazardous substances. Specific certifications like SIL, CE, or IP are not listed in the data, so project teams should consult Eaton’s official documentation or contact Eaton for additional certification details relevant to their region and application.
Because KFM is a non-indicating device, status monitoring should be integrated through plant-wide diagnostics or protection relays to verify fault events and device health. The rugged construction and high interrupt rating help minimize downtime and maintenance cycles, contributing to a favorable total cost of ownership. Leveraging Eaton’s catalogs and datasheets supports faster procurement, installation, and lifecycle planning.