Automotive fuses

For more than 40 years, customers have known TESLA Blatná as a reliable supplier of a wide range of automotive fuses and fuse holders.

Types of fuses

2 - 30A

1 - 40A

20 - 100A

30 - 200A

40 - 500A

30 - 175A

35 - 500A

20 - 120A

5, 8, 16, 25A

0,5 - 10A

The fuse is a small but very important safety component. It is designed to interrupt current in time that exceeds the current rating specified in the manufacturers' safety specifications for conductors and other circuit components. With insurance from our company, you can feel safe in your car. All TESLA fuses and fuse holders are designed to meet or exceed OEM specifications for safety and performance.

As an additional assortment, flat fuses with light indication are offered, namely Extra MINI, MINI, ATO, MAXI types. In motor vehicles, MIDI, MEGA and strip fuses are used to protect power distribution systems and electrical equipment, flat and roller fuses are designed to protect low-voltage systems and devices. The rated current values are marked on the fuses by stamping or printing and different colors of the insulating body of the fuse, always for a given current value. For the spare parts market, the fuses are supplied in blister packs or bulk packs with the number of supplied pieces ranging from 5 to 100 depending on the type of fuse.

Blade fuses

Today, blade fuses are the global standard for automotive fuses and the most common type of fuse used by car manufacturers worldwide. There are more electrical circuits in today's vehicles. More circuits require more fuses and at the same time significantly limit the space for their installation. More and more types of fuses are needed, such as multi-fuses and more compact types.

Blade fuse

Cartridge fuses

Higher driving comfort led to the introduction of various new features such as power windows, automatic wipers and air conditioning. A fuse with a different characteristic was needed. Unlike outlet fuses, the new fuses delay the temperature rise accompanying high currents, preventing their immediate blowout. For this new type of fuse, the designation "slow-blow fuse" is used. In some types, the female part of the connection has also been moved to increase the reliability of the circuit.

Cartridge pojistky

Bolt down fuses

Bolt down fuses are especially designed to protect the electrical cables that connect the battery and the alternator. They often replace fuse fuse tapes, which have less accurate parameters. The tape fuse is a flat fuse element in both covered and uncovered designs. The cased version has a window for visual inspection of the fusible element. Typical applications can be found in diesel vehicles and trucks and buses.

Šroubové pojistky

Fuse holders and classical fuses

Classical fuses

Fuses that are no longer used in new cars. Glass fuses are in glass tubes with metal caps that enclose the fusible element. Fuses vary in length and diameter depending on the current. Torpedo type fuses were used in older models of cars produced in Europe. This type of fuse consists of a refractory body with a fusible element that surrounds the outer body of the fuse.

Klasické pojistky

Fuse holders and fuse boxes

TESLA offers a comprehensive line of fuse holders, fuse blocks and fuse accessories for many automotive and industrial applications. Fuse holders for automotive type fuses include holders for MINI, ATO, MAXI, MIDI, MEGA, strip and CARTRIDGE fuses. Fuse holders are available for all types of connections including mounting on printed circuit boards. The range of fuse blocks offers a modular solution for up to twelve ATO fuses.

  • For flat fuses
  • Module holders
  • Holders for MAXI fuses
  • Holders for tape fuses


Internal construction

Blade fuses

Nožová pojistka

Cartridge fuses

Pojistka cartridge

Bolt down fuses

Pojistka bolt down

Do you know , that...

The right bulbs for the car must fit into the socket, they should last long enough, be bright enough and at the same time must not dazzle too much? These are the basic attributes that should be enough for you to know which bulb to buy.

You can best find out the type of bulb in the car's owner's manual or after removing the defective bulb. For modern cars with separate lights for dipped and high beams, these will be single-filament H7 car bulb sockets, for simpler lights, double-filament H4 bulbs. This marking is shown on the box and on the socket of the car bulb.

The voltage and wattage of the bulb are important. Passenger cars must always have homologated bulbs for night and day lighting of 12 V and an input of 55 W. For trucks, the voltage is 24 V. You can find this information directly on the car bulb.

In smart cars, however, it is often not possible to replace a classic car bulb with an ice-cold one, because the car perceives an LED bulb, due to its low consumption, as a deffective one. CAN BUS marking can solve this problem. If the bulb has this mark, it means that modern cars will not report the LED bulb to you as a defective bulb, nor detect a low-energy LED car bulb, but the bulb will light normally.