Littelfuse

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Littelfuse – Fuses and protection components for industrial and mobile applications

Littelfuse

Littelfuse is a global manufacturer of fuses, circuit protection devices and electrical protection components for industrial, vehicle and electronic applications. The company’s products are used wherever electrical systems must be reliably protected against overload, short circuits or fault currents.

The range includes, among others, blade fuses, high-current fuses, power fuses and further protection solutions used in machines, equipment, commercial vehicles and a wide variety of electrical systems.

Product groups from Littelfuse

Littelfuse develops and manufactures a broad range of electrical protection components, including:

  • blade fuses and plug-in fuses
  • high-current fuses (e.g. MEGA, MIDI, MAXI)
  • power fuses and fuse holders
  • protection and switching components for electrical systems

These parts perform key safety functions in electrical circuits and contribute significantly to the operational safety of machines and vehicles.

 

Applications of Littelfuse components

Littelfuse fuses and protection components are used across many industries, including:

  • industrial machines and equipment
  • commercial vehicles and special-purpose vehicles
  • conveying and drive systems
  • electrical controls and power distribution
  • mobile and stationary devices

Different designs and rating classes allow Littelfuse components to be matched to a wide range of technical requirements.

Use on lifting and loading systems, including tail gates

Some Littelfuse fuses are also used on lifting and loading systems, for example on tail gates (lift gates), platform lifts or comparable applications. In these systems, they protect electrical controls, motors and hydraulic power packs against overload and electrical damage.

Not every fuse is intended for this field of use. The decisive factors are always current rating, form factor and the specific system requirements.

Spare parts and maintenance

Electrical protection components from Littelfuse are used both in new builds and as part of maintenance and repair. As spare parts, they help restore and ensure the electrical safety of machines and equipment over the long term.

For workshops and service operations, using the correct fuses is crucial to avoid downtime, consequential damage and safety risks.

Littelfuse – frequently asked questions (FAQ)

What details do I need to choose the right Littelfuse fuse?

Key details are the form factor (e.g. MEGA/MIDI/MAXI/blade fuse), rated current (A), voltage, and the existing fuse holder. The safest approach is matching the markings on the old fuse and the system requirement.

How can I tell if a fuse is blown or if there is a circuit fault?

Typical signs are specific functions failing, no motor operation, or intermittent dropouts. If a fuse blows repeatedly, there is often an overload, short circuit or contact issue that should be checked.

Can I simply fit a fuse with a higher rated current?

Generally, no. An oversized fuse may not adequately protect wiring and components and can increase the risk of follow-up damage. The rating should match the circuit design—if in doubt, check the specification.

Need help or spare parts?

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