Eaton KLM-1-1/4 fuse - 100 kAIC at 600 Vac CE RoHS
Part Number: KLM-1-1/4
Quick Summary
The Eaton KLM-1-1/4 fuse protects DC control circuits and PV systems with compact, reliable protection. Engineers frequently struggle to select fuses that survive DC fault conditions while fitting tight panel enclosures. This device delivers a 100 kAIC interrupt rating at 600 Vac and 50 kAIC at 600 Vdc, backed by a CE mark and RoHS compliance for global use. Built with a nickel-plated bronze endcap and melamine tube, it combines durability with easy installation and standard packaging. In DC control and PV applications, regulatory compliance and robust protection translate to higher system uptime and lower maintenance costs, while staying aligned with Bussmann series catalog compatibility for streamlined procurement.
Product Information
Extended Description
KLM-1-1/4 Eaton: Eaton Bussmann series KLM fuse, DC Control circuits, DC photovoltaic systems, 1.25 A, Non-indicating, 100 kAIC at 600 Vac, 50 kAIC at 600 Vdc, Melamine tube, Nickel-plated bronze endcap, Standard, 600 V, 600 Vdc
Product Name
Eaton Bussmann series KLM fuse
Catalog Number
KLM-1-1/4
UPC
051712695176
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.18 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
1.25 A
Interrupt rating
100 kAIC at 600 Vac 50 kAIC at 600 Vdc
Voltage rating
600 Vac, 600 Vdc
Material
Nickel-plated bronze endcap Melamine tube
Packaging type
Standard
Fuse indicator
Non-indicating
Special features
Non-indicating
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - KLM-1-1/4
Feature: High interrupt rating and wide voltage support. Business impact: Fast fault isolation minimizes arcing and protects upstream power supplies, motors, and inverters. Application: Suitable for DC control circuits and PV arrays where rapid fault clearing is required. The result is reduced downtime and extended equipment life. Feature: Non-indicating design with CE RoHS compliance. Business impact: Simplifies regulatory compliance and reduces false alarms or status-related maintenance, while meeting European and global standards. Application: Panels and switchgear assemblies in industrial facilities that demand traceable, compliant fuses. Feature: Nickel-plated bronze endcaps and melamine tube. Business impact: Enhances mechanical robustness and contact reliability under thermal cycling and vibration, lowering replacement costs. Application: Harsh industrial environments and outdoor-rated installations. Feature: Standard packaging and Bussmann series compatibility. Business impact: Streamlines procurement, stocking, and cross-referencing across multiple SKU families, reducing lead times. Application: Maintenance stores and OEM assemblies that rely on consistent inventory. Feature: 1.25 A amperage rating with 600 Vac / 600 Vdc capability. Business impact: Fits DC control circuits and PV protections precisely, ensuring appropriate protection without nuisance blowing. Application: Control panels, solar inverters, and DC distribution where accurate current ratings are essential. Industry context: In grid-tied and standalone DC systems, selecting a fuse with these specs supports reliability and compliance across critical infrastructure while enabling cost-effective maintenance and spare parts planning.
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FAQs
The KLM-1-1/4 uses nickel-plated bronze endcaps and a melamine tube, designed for reliable contact and structural integrity in standard packaging. It is suitable for panel boards and compact DC protection assemblies, with CE RoHS compliance ensuring regulatory alignment. When integrating into a DC control circuit or PV string, ensure proper clearance and mounting to minimize vibration and thermal effects, while aligning with the Bussmann catalog to ensure compatible components are available.
Key specs include an amperage rating of 1.25 A, voltage rating of 600 Vac and 600 Vdc, and interrupt ratings of 100 kAIC at 600 Vac and 50 kAIC at 600 Vdc. The device is non-indicating, which affects fault indication in panels, and it carries CE marking and RoHS compliance. Verify compatibility with the system’s DC control circuits and PV configurations to ensure the protection level matches fault current calculations.
Yes. The KLM-1-1/4 is designed for DC control circuits and DC photovoltaic systems, offering a 600 Vdc rating and substantial interrupt capability. Its non-indicating design is compatible with standard panel indicators, and the robust endcaps support reliable long-term operation in outdoor or indoor PV installations. Always confirm the fuse’s current ratings align with the PV string maximum current and conductor sizing for safe operation.
This fuse is CE marked and RoHS compliant, meeting European and global environmental and safety requirements. These certifications support regulatory compliance across manufacturing, installation, and maintenance environments and help satisfy supplier qualification criteria in many utilities and industrial facilities.
The fuse offers reliable, high-current interrupt capability with straightforward procurement from the Bussmann catalog, reducing downtime during fault events. Its durable construction minimizes replacement intervals, while CE RoHS compliance reduces compliance-related costs. In DC control and PV applications, improved uptime and lower maintenance costs translate to a favorable total cost of ownership over the system lifecycle.