Quick answer
In short
A three-phase connection costs you two things. Upgrading the connection via Enexis costs a one-off amount ranging from limited (to 3x25A) to several hundred or well over €1,000 (to 3x35A or 3x50A), plus a higher fixed grid charge per year. The conversion of your meter cabinet and a new three-phase fuse box we do for €850 to €1,400. Together, reckon on roughly €850 to €2,500.
Price guide
Fixed price upfront| Upgrade connection to 3x25A (Enexis) | usually limited |
| Upgrade to 3x35A or 3x50A (Enexis) | a few 100 to € 1.000+ |
| Three-phase fuse box + conversion (us) | € 850 to € 1.400 |
| Higher fixed grid charge | per year, recurring |
| Call-out charge (Noord-Brabant) | € 39 |
| Total (both items together) | € 850 to € 2.500 |
Indicative prices incl. VAT. You will always receive a tailored quote.
Prices by situation
Prices at a glance
Item A: upgrading the connection via Enexis
This is the connection itself, from your meter cabinet to the grid. Across the whole of Noord-Brabant, Enexis is the grid operator. You make the application (or we make it with you) via mijnaansluiting.nl. How much you pay depends on the connection rating you choose. The amounts below are indicative and change annually: for the current rate always check mijnaansluiting.nl or Enexis.
| Connection rating | Power | When needed | Indicative one-off costs |
|---|---|---|---|
| 1x35A (now often standard) | single-phase, ± 8 kW | Existing situation, no upgrade | none |
| 3x25A | three-phase, ± 17 kW | EV charger, induction hob or heat pump on its own | usually limited |
| 3x35A | three-phase, ± 24 kW | EV charger plus heat pump together | a few 100 to € 1.000+ |
| 3x50A | three-phase, ± 34 kW | Heavy use, several high-power appliances | towards € 1.000 or more |
Indicative, incl. VAT, Enexis rates change annually. Upgrading to 3x25A is often limited or free of charge, heavier becomes more expensive. Current rate and application: mijnaansluiting.nl.
Item B: meter cabinet conversion and three-phase fuse box (our work)
As soon as Enexis has fitted or switched on the heavier connection, we convert your meter cabinet to three-phase. These are our guide prices, including fitting and connection to the NEN 1010 standard.
| Item | Guide price |
|---|---|
| Fit three-phase fuse box (6 to 12 circuits) | € 850 to € 1.400 |
| Convert meter cabinet to three-phase (cabling, distribution) | included |
| Add an extra circuit (during the job) | € 40 to € 60 per circuit |
| Fit surge protection | € 120 to € 200 |
| Check or improve earthing | € 100 to € 250 |
| Call-out charge within Noord-Brabant | € 39 |
Guide prices incl. VAT and fitting. You always get a fixed price upfront based on your own meter cabinet.
Price breakdown
What determines the price of upgrading to three-phase?
The two items together determine what you pay. These points are decisive, so you understand where your price comes from.
Chosen connection rating
Upgrading to 3x25A is often limited or free of charge with Enexis. If you choose 3x35A or 3x50A, the one-off costs run up to several hundred or well over €1,000. So do not choose heavier than you need.
Higher fixed grid charge
A heavier connection means a higher fixed rate per year (the fixed grid charge, also known as the standing charge). You pay that for as long as you keep the connection, so factor it into your decision.
Number of circuits in the new box
The more circuits, the more materials and work. Heavy appliances such as an EV charger, heat pump and induction hob each belong on their own circuit, distributed across the three phases.
Condition of meter cabinet and wiring
If the cabling or earthing is outdated, extra work comes up before the three-phase box can go in. With an old meter cabinet we always check this first.
Waiting time and grid congestion
In parts of Brabant the grid is busy. That costs no extra money, but it does cost time: the lead time at Enexis can grow. So plan your upgrade in good time.
Protection and handover
Under NEN 1010 at least two 30 mA RCDs, neatly distributed. Surge protection is optional but sensible with expensive equipment, and counts in the price.
Worked examples
Worked examples from practice
To give a feel for the price, here are three situations of the kind we often come across in Brabant. The grid operator item is listed separately, because Enexis bills that apart from us. You always get your price upfront, fixed and tailored.
Family with an EV charger, upgrade to 3x25A
A semi-detached house with an electric car. The single-phase box is full. They want to go to 3x25A so the EV charger can charge properly and safely without disrupting the rest of the house.
- Three-phase fuse box, 8 circuits€ 1.050
- Convert meter cabinet to three-phaseincluded
- Call-out charge€ 39
- Upgrade connection to 3x25A (Enexis, separate)usually limited
To 3x25A the one-off Enexis item is usually limited. Do reckon on a higher fixed grid charge per year.
Adding a heat pump, upgrade to 3x35A
A terraced house coming off gas. A heat pump is being added, and there is already an induction hob. Together that requires more power, so it becomes 3x35A.
- Three-phase fuse box, 10 circuits€ 1.250
- Surge protection€ 160
- Call-out charge€ 39
- Upgrade connection to 3x35A (Enexis, separate)a few 100 to € 1.000+
At 3x35A Enexis charges a one-off connection fee, plus a higher fixed rate per year. We arrange the application with you.
Induction plus EV charger, large box on 3x35A
A detached house with induction cooking, an EV charger and plans for solar panels. The residents want spare capacity in the box and deliberately choose 3x35A.
- Three-phase fuse box, 12 circuits€ 1.380
- Improve earthing€ 180
- Call-out charge€ 39
- Upgrade connection to 3x35A (Enexis, separate)a few 100 to € 1.000+
The large box pays off: expanding for solar panels or a home battery can be done later without having to open up the box again.
Good to know
What exactly are you paying for?
Upgrading to three-phase involves two parties: the grid operator and the electrician. Here is how the cost breakdown works, so nothing catches you out.
The grid operator: the connection itself (Enexis)
The connection of your home to the grid belongs to the grid operator. Across the whole of Noord-Brabant that is Enexis (in other parts of the country it is Liander or Stedin, which is why you often come across those names online). If you want to go from single-phase to three-phase, you apply for it via mijnaansluiting.nl. Enexis determines and bills the one-off costs.
Upgrading to 3x25A is often limited or free of charge. If you go heavier, to 3x35A or 3x50A, reckon on several hundred to well over €1,000 as a one-off. These amounts change annually, so treat them as a guide: the current rate is on mijnaansluiting.nl.
The fixed grid charge: the recurring costs
Besides the one-off connection costs, you pay the grid operator a fixed amount per year for your connection: the standing charge, also known as the recurring grid charge. For homes, that fixed annual amount depends partly on how heavy your connection is. So a heavier three-phase connection means a higher fixed item on your energy bill, every year again.
That is no reason not to do it, but it is a reason to choose deliberately. Do not take a heavier rating than you really need. For a single EV charger or heat pump, 3x25A is often more than enough.
The electrician: conversion and three-phase fuse box (us)
As soon as the heavier connection is in place, we convert your meter cabinet. We fit a three-phase fuse box, distribute the circuits neatly across the three phases, connect everything to the NEN 1010 standard and test the installation. That work costs €850 to €1,400, depending on the number of circuits and the condition of your meter cabinet.
A good distribution across the phases is skilled work: it prevents one phase becoming overloaded while the other two do nothing. That is what you pay for, and it is exactly the difference between a box that is correct and one that causes problems later.
VAT and what is in the price
Our prices are including 21% VAT and including fitting. For converting the meter cabinet and fitting a three-phase fuse box in an existing home the normal VAT rate of 21% applies.
The one-off connection costs and the fixed grid charge are billed by Enexis directly to you, separate from our quote. Those amounts are indicative and change annually: the current rate is on mijnaansluiting.nl. Our own quote always states a fixed price upfront for our work, with no surprises afterwards.
Smart savings
Smart ways to save on upgrading to three-phase
Without compromising on safety, there are a few sensible ways to manage the costs.
Choose the right connection rating
Do not take a heavier rating than you need. For a single EV charger or heat pump, 3x25A is often enough, and that saves both the one-off connection costs and the fixed rate per year.
Combine the work
Have the meter cabinet converted at the moment you are having an EV charger, heat pump or home battery fitted anyway. One journey and one job saves costs.
Apply in good time
Because of grid congestion in Brabant, the lead time at Enexis can grow. Applying in good time costs nothing extra and prevents your appliance sitting there unable to run yet.
Related
Handy to look at as well
These pages tie in with upgrading your meter cabinet to three-phase.
Meter cabinet upgrade
Everything about the service itself: the application to Enexis, the conversion and the guarantee.
More infoFuse box replacement costs
Just need a new fuse box, without an upgrade? See those prices separately.
More infoEV charger costs
What does a home EV charger cost, including any changes to your meter cabinet?
More infoHome battery costs
A home battery often needs three-phase too. See the costs and the returns.
More infoMeter cabinet replacement costs
Not upgrading but renewing the whole meter cabinet? See those prices.
More infoWhy Brabant Elektra
Certified, insured and guaranteed
All our engineers are qualified and work to the NEN 1010 standard. We give a 2-year guarantee on all our work. Reliable work you can count on.
Frequently asked questions
Questions about the price
Service area
Upgrading to three-phase in Noord-Brabant
Across the whole of Noord-Brabant, Enexis is the grid operator, from Eindhoven to Breda and from Den Bosch to Tilburg. The application to upgrade your connection goes via mijnaansluiting.nl. We know that procedure and are happy to arrange the application with you.
In some places in Brabant the grid is busy (grid congestion). That costs you no extra money, but the waiting time at Enexis can grow. Our advice: start in good time, especially if your upgrade is tied to an EV charger, heat pump or home battery you want to use soon. The call-out charge within the region is a fixed amount, so you never face a travel-surcharge surprise.
Service area
Across Noord-Brabant
From major cities to smaller towns, active in:
Have your meter cabinet upgraded to three-phase?
Request a free quote or have a quick word with a certified electrician near you. We arrange the application with Enexis for you and give a fixed price upfront for the conversion, no surprises afterwards.
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