Fuse Holders

Fuse holders are devices used for retaining, protecting, and mounting fuses. Fuse holders come in a range of styles, each designed to suit a specific style of fuse, such as cartridge or blade types. For cartridge-style fuses, a fuse cartridge holder provides a secure and reliable housing. Fuse holders can be categorised by their attachment or mounting type.

RS Hong Kong offers an extensive range of high-quality devices for industrial, commercial, and domestic use. From base mounts, inline, and DIN rail-mount fuse holders to panel-mount and PCB units, all our products are sourced from industry-leading brands, including Schurter, Littelfuse, Cooper Bussmann, and Mersen.

What Types of Fuse Holders are Available?

Fuse holders vary depending on the fuse they are designed to accommodate, the mounting method required, and the operating environment. Some of the most common types you will find are:

Base Mount / Fuse Base Holder

The base of the fuse holder is usually attached to a surface with fixing screws at the centre of the base, providing a stable, permanent mounting point for the fuse within the circuit. These fuse base holders are commonly used with cylindrical cartridge fuses in industrial control equipment, distribution boards, and general electrical installations.

They are ideal for applications where a fixed, screw-down mounting is preferred over rail or panel-mounted alternatives. Most base-mount variants include spring-loaded contacts to ensure consistent electrical contact throughout the fuse's life.

Inline Fuse Holder

Inline fuse holders provide housing for a fuse in a wiring circuit. With cable or wire attached at each end of the holder, their design creates a fuse-protected inline connection without requiring a separate panel or mounting surface.

These holders are compact and flexible, making them well suited to automotive wiring harnesses, audio and video circuits, and portable equipment where adding a dedicated fuse position in the cable run is more practical than panel mounting. Inline fuse cartridge holders in the RS Hong Kong range accept 6.3x32mm cartridge fuses and, depending on the model, ATO/ATC blade fuses.

DIN Rail Mount Fuse Holder

Rail mount holders are specifically designed to be mounted to DIN rails, meaning that they feature a slot for the rail to attach to somewhere in the body of the fuse holder. A DIN rail fuse holder can vary in voltage and current rating, including 24 amp fuse holder variants, number of poles, and wire terminal type to suit different wiring configurations in industrial environments. These holders are compatible with cylindrical cartridge fuses and are widely used in industrial control panel builds.

Panel Mount / Control Fuse Holder

A panel-mount fuse holder is designed to be mounted on or in an electrical panel. It provides a front-accessible fuse position, allowing maintenance staff to replace a blown fuse without opening the panel enclosure. There are two main types of panel mount/control fuse holders:

• Rectangular snap-in types
• Cylindrical tube screw-in types

Cap styles range from manual and slotted to finger-grip formats for different levels of access control. Control fuse holders in the RS Hong Kong range are compatible with cylindrical cartridge fuses in 5x20mm and 6.35x30mm formats, as well as ATO/ATC blade fuses in rectangular snap-in variants.

PCB Fuse Holder

A PCB fuse holder is mounted directly onto a printed circuit board and provides an integrated fuse position within the PCB assembly. It allows the fuse to be replaced without dismantling the surrounding circuit.

PCB mounts come in two basic types: open or fully enclosed. Open PCB mounts include fuse clips, fuse blocks, sockets, and plug-on cap varieties. The fully enclosed variants may use a fuse carrier inserted into the holder body to fully protect the fuse element from contact and contamination.

Blade / Automotive Fuse Holder

A blade fuse holder is designed specifically to accept ATO- and ATC-format blade fuses, which are the standard fuse type used in automotive, marine, and audio applications. These holders are available in inline and panel-mount formats. They provide flexible installation options across vehicle wiring harnesses, car audio amplifiers, and portable power equipment.

Blade fuse holders on the RS Hong Kong range are rated up to 30A and 32V DC, with PVC housing and wire leads at each end for straightforward in-circuit installation. Their compact design and simple fuse replacement make them a practical choice wherever blade-format circuit protection is required.

Common Applications of Fuse Holders

Fuse holders are crucial components across various industries, providing essential protection for electrical circuits and ensuring safety and reliability. Here are their common applications:

1. Telecommunications Equipment

Fuse holders protect sensitive electronic components in routers, switches, and other telecom devices from power surges and overcurrent conditions, maintaining reliable communication services.

2. Consumer Electronics

In household appliances and electronic gadgets, fuse holders safeguard against electrical faults, ensuring user safety and preventing equipment damage.

3. Automotive

Automotive fuse holders are widely utilised in vehicles to protect various electrical systems from short circuits and overloads. They ensure safety and prevent damage to critical components like lights, ignition systems, and other electrical accessories.

4. Industrial Equipment

In industrial settings, fuse holders play a crucial role in protecting equipment from electrical faults, thereby preventing costly downtime and potential hazards to personnel.

5. Power Distribution

Fuse holders are vital in power distribution boards and systems, protecting transformers and circuit breakers to maintain stable and safe power distribution.

Buy Fuse Holders from RS Hong Kong

For dependable circuit protection solutions, RS Hong Kong provides a comprehensive selection of fuse holders from trusted brands such as Eaton, Schurter, Siemens, and more. Browse by fuse holder type, current rating, size, number of poles, and terminal type to find the right fuse base or fuse cartridge holder for your application. You can conveniently buy fuse holders online with fast delivery options or collect from a nearby branch in Hong Kong. For more details on shipping times and fees, please visit the delivery information page.