Main fuse services

The prerequisite for trouble-free electricity consumption is a main fuse with a correct rating. The higher your building's main fuse rating, the more electrical appliances you can use at the same time and the higher their wattage can be.

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Main fuse calculator

The calculator helps you find the appropriate amperage for your main fuse.
Calculate the recommended main fuse amperage for your household.

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When should a main fuse be replaced?

  • Your fuses keep blowing

    This means that the main fuse amperage in your place of consumption is too low and you should increase it.

  • The main fuse amperage is higher than you need, meaning you are overpaying

    If your electricity consumption is lower than actually required, you should consider installing a main fuse with lower amperage.

  • You want to replace your old main fuse with a new one

    Old main fuses might not be reliable, which is why we recommend to replace them with an up-to-date version. The fuse rating may remain the same.

  • You wish to add or divide a main fuse

    Generally required if plots are being joined or divided.

  • You want to transfer from a single-phase to a three-phase network connection

    A three-phase network connection is more modern, powerful and safe.

  • Increasing the amperage of a main fuse

    The amperage of the main fuse should be increased if the fuses keep blowing while using more powerful electrical devices. When the amperage of the main fuse is increased, the fuse is changed at its existing location, while the supply point is not relocated.

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    Lowering and later restoring the main fuse amperage

    You may consider lowering the main fuse amperage if you are using a package with a fixed fee and your electricity consumption has dropped significantly - for example, if you no longer use electric heating, have replaced your household appliances with new and more economical ones, etc. It is important to assess whether your electricity consumption has dropped permanently or temporarily (for example, if you plan to increase the number of power consumers in the near future, it is not reasonable to lower the main fuse amperage).

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    Transfer to a three-phase network connection

    If you want access to more modern, powerful and safer electricity, we recommend that you replace a single-phase network connection with a three-phase connection, to switch from 1 x 20 A to 3 x 20 A for example. The service of transferring to a three-phase network connection is available both for detached houses and apartment buildings.

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    Adding and dividing main fuses

    An existing main fuse can be divided when a property is divided. Main fuses on the same property can be added.

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    The main fuse is outdated

    If your main fuse does not meet the modern requirements – you are still using an old-school fuse or an older circuit-breaker – then it is recommended to swap it out for a modern fuse with equal amperage for the sake of safety. Replacing the main fuse does not require changing its location.

    View the price list

    Increasing the amperage of a main fuse

    How much does it cost to increase the amperage of the main fuse?

    The fee depends on the distance between the supply point and the low-voltage substation. If the distance from a low-voltage substation is up to 400 metres, one ampere costs 156 euros. In case of connection points that are more than 400 metres from the low-voltage substation, the fee will be calculated based on the actual cost of the main fuse replacement. Additional costs for network reconstruction work may be added.

    Distance between the connection point and a low-voltage substation Fee per ampere
    Up to 400 m 156 €
    Over 400 m Calculated based on actual costs

    A contract processing fee of 72 € will be added.

    Important

    When replacing the main fuse, the new main fuse will be installed at the same location. If the main fuse cannot be changed at its existing location, perhaps because there is no junction box or fuse base that meets the requirements or because the cables are old, you will have to upgrade your main fuse box and, if necessary, the electrical system inside your house. Once the required work has been done, we will install a main fuse of the amperage you have requested in the upgraded junction box.

    Relocating the supply point

    If you plan to improve the electrical system in your house or are already doing so, you can also ask us to relocate your supply point in addition to increasing the amperage of the main fuse. We will usually install a junction box at the border of the property and install a main fuse of the amperage you have requested. A cost-based fee of 1,000–1,500 euros will be charged for relocating the supply point.

    Where should the supply point stand relative to the house?

    See here.

    Lowering and later restoring the main fuse amperage

    In the course of the work, we will replace your main fuse with one with a lower amperage. No refund will be issued for lowered amperes.

    NB!Apartment buildings have joint main fuses, which is why apartment owners cannot request the lowering of the main fuse of their apartment.

    How much does it cost to lower the amperage of the main fuse?

    Amperage Price
    Up to 63 A 42,67 €
    Over 63 A Calculated based on actual costs

    Restoring the main fuse amperage

    Sometimes it might be necessary to restore the main fuse amperage If the capacity of the network does not need to be increased, the main fuse amperage can be restored for up to three years from the date it was lowered.

    The cost of restoring the amperage of a main fuse of up to 63 A costs 42.67 euros on condition that the capacity of the network does not need to be increased.

    For a main fuse over 63 A, the price depends on the actual costs.

    Transfer to a three-phase network connection

    If you want a three-phase network connection for a detached house

    To transfer a detached house to a three-phase network connection you will have to fill in a request. We will then send you a quote. The work needed may be limited to installing a new main fuse and meter. In more complex cases, the network up to your house may have to be upgraded to a three-phase network.

    If you want three-phase network connection for an apartment

    If you want a three-phase connection for your apartment and the supply point of the building is already three-phase, you do not need to fill in a request. You will have to send us the consent of your apartment association to building a three-phase connection for your apartment.

    What should you do for the transfer?

    The prerequisite for installing a three-phase meter is the existence of a three phase connection in the connection point of the apartment house.

  • The work must be arranged as outlined in the standard technical inspection document and in the design, where a design is necessary. The qualified company you have chosen to do the electrical work will decide if a design is needed. You need not submit the design to us.
  • Arrange for:

    - The installation of proper three-phase cabling from the junction box or connection point to the apartment's main fuse in the meter box

    - The replacement of the apartment's single-phase main fuse with a three-phase one

    - The installation of proper cabling for connecting the three-phase mete

  • After you have carried out all the preparation works, we will install a new remotely read three-phase meter in your consumption point.
  • How much does it cost to transfer an apartment building to a three-phase connection?

    The largest expense is the cost of the electrical work, such as the replacement of the cabling, etc. Elektrilevi does not carry out this work, which means you will have to order them from a company qualified to do the electrical work. The work we carry out in the apartment building is:

    Work Price
    Installing the meter 42.67 € per apartment
    Sealing 3.36 € per apartment

    How to order?

    To order a three-phase meter, email info@elektrilevi.ee  or write Elektrilevi OÜ, Kadaka tee 63, 12915 Tallinn. Please enclose the consent of the apartment association or the residents of the house with your request.

    NB!

  • The apartment association's consent must be signed by a board member of the apartment association.
  • If the person who has signed the consent has not been registered in the Commercial Register, you must also submit the minutes of the general meeting of the apartment association that elected the board members.
  • If the apartment building has up to 10 apartments and has no elected board members, all apartment owners must sign the consent.
  • Adding and dividing main fuses

    Adding main fuses

    If you have two or more supply points on your property, they can be added or merged.

    Example: A house has a single-phase connection with a 16 A main fuse and an ancillary building has a three-phase connection with a 16 A main fuse. These main fuses can be added to form a three-phase connection with a 32 A main fuse.

    Dividing a main fuse

  • A cadastral unit is divided
  • A new building is built on the same property
  • An existing building is divided between co-owners
  • If the number of electricity consumer has increased and the amperage of the existing main fuse is too low, it might me necessary to install a new connection point.

    How much does it cost to add or divide the amperage of a main fuse?

    The price of the service depends on the actual cost of equipment, materials and work.

    Price list

    How much does it cost to replace the main fuse?

    Amperage Price
    Up to 63 A 42,67 €
    Over 63 A Calculated based on actual costs