Littelfuse KLPC600 - KLPC series POWR-PRO™ fuses provide ideal overcurrent protection for circuits from 200 through 6000 amperes. KLPC series POWR-PRO™ fuses specification-grade construction and performance meet or exceed the most stringent project specifications: 99.9% pure silver links, silver-plated copper end bells, glass-reinforced melamine bodies, O-ring seals between body and end bells, and granular quartz fillers. KLPC series POWR-PRO™ fuses are the only UL listed Class L fuses that provide a minimum of ten seconds time delay at 500% rated current and are also as current limiting as the fastest Class L fuse on the market. On average, the peak let-through currents of KLPC series fuses are 10% less than any other "time-delay" Class L fuse.
Littelfuse

KLPC600

Alternate Item Number: KLPC600.X

UPC: 079458295078


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Overview

The Littelfuse KLPC600 POWR-PRO™ Class L fuse (SKU: KLPC600) delivers superior overcurrent protection for industrial and commercial circuits rated from 200 to 6000 amperes. Engineered to meet the most stringent project specifications, this specification-grade fuse combines premium materials and advanced design for unmatched reliability and performance. The KLPC600 features 99.9% pure silver links for exceptional conductivity and thermal stability, ensuring minimal resistance and long-term stability under high loads. Silver-plated copper end bells provide enhanced corrosion resistance and superior electrical contact, reducing the risk of oxidation and ensuring consistent performance. The glass-reinforced melamine body offers robust mechanical strength and exceptional resistance to heat, arcing, and mechanical stress, making it ideal for harsh industrial environments. O-ring seals between the body and end bells prevent moisture ingress, while granular quartz fillers rapidly quench arcs, minimizing let-through energy and protecting downstream equipment. A standout feature of the KLPC600 is its UL-listed Class L certification, including a unique minimum ten-second time delay at 500% rated current. This time-delay capability prevents nuisance tripping during temporary overloads, such as motor starting or capacitor bank charging, ensuring continuous operation without compromising safety. Additionally, the KLPC600 is as current-limiting as the fastest Class L fuse on the market, with peak let-through currents averaging 10% lower than other time-delay Class L fuses. This superior current-limiting performance reduces stress on sensitive downstream equipment, extending its lifespan and reducing maintenance costs. Typical applications include power distribution systems, motor control centers (MCCs), solar and wind power inverters, utility substations, and critical infrastructure like data centers. Installation is straightforward, compatible with standard Class L fuse holders, and requires no special tools. Regular inspection is recommended to ensure optimal performance and longevity.
  • UL-listed Class L fuse with 10-second minimum time delay at 500% rated current
  • 99.9% pure silver links for exceptional conductivity and thermal stability
  • Silver-plated copper end bells for enhanced corrosion resistance and electrical contact
  • Glass-reinforced melamine body for robust mechanical strength and heat resistance
  • O-ring seals and granular quartz fillers for moisture resistance and arc quenching
  • Granular quartz fillers for rapid arc quenching and enhanced safety
  • Ideal for motor control centers, power distribution, and renewable energy systems
  • UL-listed and engineered for harsh industrial environments

Specifications

Amperage Rating
2.8 Amp
Application
small motors/high inrush
Brand Name
Littelfuse
Current Rating
200-6000 A
Material
99.9% pure silver links, silver-plated copper end bells, glass-reinforced melamine body, granular quartz fillers
Nema Rating
Class L
Series
POWR-PRO™
Special Features
Time-Delay
Standard
Supplemental Protection
Sub Brand
POWR-GARD FLM Series
Type
UL Supplemental
Package Weight (Imperial)
3.620 L
Package Weight (Metric)
1.642 kg
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in

Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.