Littelfuse LMF010H - Perfect for use in lighting systems, this 300 VAC time delay fuse is designed to handle ballast transformer in-rush currents.
Littelfuse

LMF010H

Alternate Item Number: 0LMF010.H

UPC: 079458947748

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Minimum Qty: 100

Multiplier: 100

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Overview

The Littelfuse LMF010H is a high-performance 300VAC time delay fuse, meticulously engineered to provide superior protection for demanding lighting systems. This fuse is specifically designed to address the unique challenges presented by ballast transformer in-rush currents, a common phenomenon that can lead to nuisance tripping or premature fuse failure in standard fuses. By incorporating advanced time-delay characteristics, the LMF010H effectively tolerates these transient current surges, ensuring uninterrupted operation of your lighting infrastructure. Engineered by Littelfuse, a globally recognized leader in circuit protection solutions, the LMF010H embodies a commitment to reliability, safety, and performance. Its robust construction and precise timing capabilities make it an indispensable component for a wide array of industrial and commercial lighting applications. Whether you are safeguarding high-intensity discharge (HID) lighting, fluorescent systems, or other specialized lighting circuits, this fuse delivers the dependable protection your sensitive electrical components require. The primary function of the LMF010H is to act as a sacrificial element, designed to open the circuit and prevent damage in the event of an overcurrent condition. This is crucial for protecting expensive ballast transformers, control gear, and wiring from the detrimental effects of short circuits or prolonged overloads. The time-delay feature is particularly critical in lighting applications where ballast transformers, upon initial power-up, draw a significantly higher current than their steady-state operating current. Standard fast-acting fuses would typically blow under these conditions, leading to unnecessary downtime and maintenance costs. The LMF010H, however, is calibrated to allow this in-rush current to pass without tripping, while still providing rapid protection against sustained fault currents. Key features and benefits of the Littelfuse LMF010H include: * **Optimized for Lighting Systems:** Specifically designed to handle the unique current demands of lighting circuits, particularly those incorporating ballast transformers. * **Effective In-Rush Current Handling:** The time-delay functionality ensures that transient in-rush currents from ballast transformers do not cause nuisance tripping. * **Reliable Overcurrent Protection:** Provides robust protection against short circuits and overloads, safeguarding valuable equipment. * **300VAC Voltage Rating:** Suitable for use in systems operating at up to 300 volts AC. * **Trusted Littelfuse Quality:** Manufactured by a leading authority in circuit protection, ensuring consistent performance and durability. Professionals in electrical engineering, facility management, and lighting design rely on fuses like the LMF010H to ensure the longevity and operational integrity of their lighting installations. Proper selection and installation are paramount; consulting system schematics and ensuring the fuse's voltage and current ratings are appropriate for the protected circuit are standard best practices. The LMF010H, with its specific design for lighting applications and its 300VAC rating, fits seamlessly into many commercial and industrial electrical panels and fixtures. Its UNSPSC code, 39121627, further categorizes it within the electrical protection and control devices sector, underscoring its role in maintaining safe and efficient electrical operations. When specifying components for critical lighting infrastructure, choosing a fuse with proven performance characteristics, such as the Littelfuse LMF010H, is a prudent decision that contributes to overall system reliability and safety.
  • 300VAC Time Delay Fuse
  • Designed for Lighting Systems
  • Handles Ballast Transformer In-Rush Currents
  • Reliable Overcurrent Protection
  • Manufactured by Littelfuse

Specifications

Application
fluorescent Lighting
Brand Name
Littelfuse
Special Features
Fast-Acting
Standard
Standard 248-14 UL Listed/CSA
Sub Brand
POWR-GARD LMF Series
Type
InLine Fuse
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 Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
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
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in
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.

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.