Cartridge Ceramic Fuse Manufacturer

With excellent DC performance and various mounting options, our Cartridge Ceramic Fuses are widely used in electric vehicles, battery packs, photovoltaic power generation, and other DC power applications as backup protection after short-circuiting.

10x85mm PV Cylindrical Fuse
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Cartridge Ceramic Fuse

As a prominent electrical components manufacturer, HIITIO specializes in high-voltage DC applications.

HIITIO holds prestigious certifications, including ISO9001, ISO14001, ISO45001, and IATF16949, attesting to our commitment to quality, environmental responsibility, occupational health and safety, and automotive industry standards. There are four series of fuses designed to ensure the safety of power systems.

Cartridge ceramic fuse, also called ferrule fuse, is one of our HVDC fuse types and rated current is usually 1- 60amps, voltage up to 1500VDC, with cylinder in shape. There are either metal caps (ferrules) or blade contact points, at both of its ends. 

Features of HIITIO Cartridge Ceramic Fuse

Various installation size options

  • Different sizes in design: 10*38mm, 10*85mm, 10*65mm, and 14*51mm.
  • Compact design, easy for you to install in your circuit. 

High speed acting with low watt losses

  • Designed for DC applications, responds quickly and cuts off current
  • Protect the safe operation of the circuit when the current abnormally rises to a certain height and temperature.

Multitudinous types and specification options

  • Designed with many voltage specifications to choose: 500VDC, 700VDC, 750VDC, 1000VDC, 1500VDC.
  • Current could be chose from 1A-60A.
  • aR class type with fast acting, and gPV type for PV system. 

High breaking capacity up to 30kA

  • Breaking capacity is up to 30kA. 
  • No safety phenomena during the circuit breaking process, including continuous arcing, smoke, spray, splash, burning, explosion, etc.


Competitive Price

  • Optimized supply chain, establishing close ties with reliable suppliers
  • Plan procurement, managing inventory
  • Optimized supplier delivery structures

Production capacity

  • 4 semi-automatic production lines and 1 fully automated production line to further enhance productivity and quality control

Quality Control

Comprehensive Certifications

  • UL, cUL, CSA, CE, CB, TUV, SEMKO, CCC, VDE, and more.
  • Actively researching customer needs and industry trends, seeking additional certifications.

R&D Capability

  • Independent laboratory for electrical life testing, breaking capacity testing, high and low temperature testing, etc. 
  • 30+ people R&D team with 10+ years developing experience


  • Pre-sales Services: product consultation, technical support, customized solutions, sample service, and fast delivery.
  • After-sales Services: Respond to your questions and complaints in a timely manner and provide the best solution.

All you should know about Cartridge Ceramic Fuse

What is the function of the cartridge ceramic fuse?

They are used as safety devices, designed to protect electrical equipment from overloads and short circuits.
There is a metal strip inside the fuse that is connected to the two metal ends of the fuse body. Under a short or fault anywhere in the circuit, or the circuit is overloaded, the metal strip or connection heats up and melts rapidly, breaking the circuit and cutting off the power to prevent damage. When a fuse blows, the circuit is broken.

What’s the cartridge ceramic fuse installation method?

The size of this type of fuse is compact, making it easy to install. There are various installation methods available for your preference, including ferrule, axial bolt, surface mount, and flush bolt-on.

You can choose the most suitable installation method based on the requirements of your electrical system.

HCHVF500 50A 500V 10x38mm EV Cylindrical Fuse Fast Acting 01


HCEVT500 40A 500V 10x38mm EV Cylindrical Fuse Fast Acting 01

Surface Mount

Axial bolt on 1 fuse

Axial Bolt-on-1

Axial bolt on 2 fuse

Axial Bolt-on-2

750Vdc 100A Fast Acting BS88 Fuse 3

Flush Bolt-on

What factors should consider when choosing the right cartridge ceramic fuse?

The selection of fuses depends on many factors, including current, voltage, breaking capacity, installation size requirements, etc. Here are some suggestions to help you choose the right fuse for your specific application.

1. Fuse Current and Voltage Rating

Fuse current and voltage rating is a crucial adjective, once you determine them, you are on the right track. However, when at room temperature, you need to consider temperature derating at 25%.

It means if your circuit is 10 amp, you need to use 12.5 amp at 25˚C. The fuse rated voltage can be higher than the circuit voltage, but not lower.

2. Breaking Capacity

Breaking capacity is the ability of a fuse to safely interrupt a circuit in the event of a fault. Make sure the breaking capacity of the selected fuse meets or exceeds the requirements for transient overcurrents that may occur in the circuit.

3. Correct Mounting Dimensions

Correct mounting dimensions ensure that the fuse functions effectively in the circuit and can fit within given space and layout constraints.

Make sure the fuse you choose is the right size for the space available in your electrical system, including length, diameter, etc.

What’s the difference between aR, gR, gG, and gPV?

They are all IEC international standards that represent different types of fuses, which relate to the way they work.


aR class type fuse usually provides partial protection for semiconductors. It could only supply short circuit protection.


gR fuse can provide full range protection with both short circuit and overload protection for semiconductors.


gG is a general purpose fuse for short circuit and overload protection, suitable for general industrial and commercial electrical systems, providing a full range of cables and wires protection. Their acting speed is no faster than other fuses.


gPV stands for a fuse for photovoltaic (PV) systems that are specially designed to meet the requirements of solar systems, including protection of direct current. It is mainly used in solar photovoltaic systems to protect photovoltaic modules and related electrical equipment.

How to distinguish the breaking capacity and interrupting rating?

Breaking capacity and interrupting rating are somewhat similar, and are often used interchangeably.

Breaking capacity refers to the maximum current that a fuse must be able to safely break the circuit in the event of a short circuit without damaging the circuit and the surrounding environment.

The interrupting rating is the maximum available current at a rated voltage that the fuse can safely open without rupture under standard test conditions.

The interrupting rating of the fuse must be greater than or equal to the short-circuit current available in the circuit.

Why does my cartridge ceramic fuse keep blowing?

First, unplug all from the circuit. If it works, either there’s something wrong with one of the things you unplugged, or there’s too much plugged into the circuit.

If your fuse still keeps blowing after you replace into a new one and unplugging everything, the problem might be on somewhere of your circuit itself, you could call an electrician to carefully check your circuit and fix the faulty circuit.

Applications of Cartridge Ceramic Fuse

EV HEV solution 4 3 1


The battery system and motor used in electric vehicles usually use DC power supply. The ferrule-type fuse can be used to protect the electrical system of electric vehicles and prevent safety issues caused by circuit faults. This high-speed fuse is a good choice to protect the battery under short circuit fault conditions with excellent current limiting effect.

close up of lectric car lithium battery pack e1701238408602

Battery pack

The ferrule-type fuse is also used in battery packs to prevent the current in the battery pack from exceeding the safety rating. If overload current or short-circuit current in circuit, it protects the battery and related electrical equipment by disconnecting the circuit to prevent current overload. dangers and damages.

solar panel 2

Photovoltaic systems

HIITIO ferrule-type solar fuse is designed to integrate into an in-line assembly within a wire harness. The fuse provides photovoltaic (PV) protection that meets UL 248-19 for photovoltaic applications. This can be electrically insulated by either over-molding or using heat shrink. Same time meets IEC 60269-6 (2010) electrical performance and installation requirements.  

It is important to use gPV fuses to protect photovoltaic panels and conductors from reverse over-current conditions. Our gPV series fuses have the ability to interrupt very low overcurrents at full voltage.

PV inverter system 3

Inverter system

The inverter converts DC power into AC power. In the inverter system, ferrule-type fuses are usually used to protect the DC side circuit of the inverter to ensure that the system can quickly cut off the current when a short circuit or overload occurs, preventing damage to the equipment or causing a security problem.

UPower Vanadium Redox Flow Battery

Industrial DC power supply system

In industrial automation and control systems, DC power supplies are often used to drive motors, control solenoid valves and other equipment, the ferrule-type DC fuses can protect these key components and ensure the stable operation of the system.

dc circuit protection

DC Relay protection

The main function of ferrule-type fuse is to quickly cut off the circuit when overcurrent occurs in the circuit. Relays are typically used to control electrical current, but under certain circumstances, a current overload can occur, such as a fault or short circuit. Fuses can quickly interrupt the circuit in these situations and prevent excessive current from damaging relays and other equipment.


Yes, we have customers in the United States and Europe. For more information, please contact us.

Yes, we have a distributor policy. Warmly welcome you to discuss with us.

Sure, we can provide free samples after evaluation.

When there is inventory, the delivery time is within a week If there is no inventory, the delivery time is subject to order and will be as early as possible.

Yes, OEM and ODM are available.

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