About this job
What does upgrading to three-phase mean?
Upgrading means your supply can handle more power. Most homes currently have single-phase power: one live wire plus neutral, enough for normal household use. With three-phase, three live wires come in and the load is spread across three channels. Much more can run simultaneously without the main fuse tripping.
Important to know: the supply itself belongs to the grid operator, in Brabant that is Enexis. They adjust the main fuse, the cable and the meter. Everything behind the meter, your meter cabinet and fuse box, is our work. We prepare your installation for three-phase and handle the application with the grid operator, so everything is managed in one place.
Warning signs
When do you need three-phase?
The energy transition is often the trigger. If you recognise any of these situations, upgrading is worth considering.
An EV charger at home
A standard 11 kW EV charger runs on three-phase. That way you charge faster without overloading a single phase.
A heat pump
Many fully electric heat pumps require three-phase, especially the larger models. Start-up currents are then spread neatly across the phases.
Induction cooking
A full induction hob can draw significant peaks. Sometimes a dedicated cooking circuit is enough; sometimes three-phase is the better choice. We give honest advice on what suits you.
Home battery or many solar panels
Want to support a larger part of your home or export from many panels? Three-phase is often the logical step.
The main fuse keeps tripping
If the main fuse trips regularly when a lot is running at once, your supply is simply too light.
Several plans at the same time
EV charger, heat pump and induction hob all coming together? Make the move to three-phase in one go, that is the most future-proof approach.
How we work
How we approach it
From calculation to connection: we keep control, so you do not have to figure anything out.
- 1
Load calculation
We look at your meter cabinet and calculate how much power you need. You get honest advice: is three-phase really necessary, or can a lighter option do the job?
- 2
Application and fixed price
We handle the application with the grid operator via Mijnaansluiting.nl and give you a fixed price upfront for our part. No surprises afterwards.
- 3
Meter cabinet ready for three-phase
We rebuild your meter cabinet: a three-phase main switch, circuits distributed neatly across the three phases and appropriate protection.
- 4
Grid operator connects
On the agreed day the grid operator upgrades the supply and installs a three-phase meter. A brief power cut, then ready for the future.
Good to know
The technical side, in plain English
Two questions we often get about three-phase. We explain them calmly.
Is three-phase more dangerous or more expensive per kWh?
No. Three-phase is not a higher voltage, just more power spread across three wires. Between phase and neutral you still have 230 volts, exactly as before. The price per kWh does not change: you do not pay more for your electricity, you can simply use more at the same time.
Good to know: the most popular upgrade, to 3x25A, falls in the same tariff category at the grid operator as single-phase. Your fixed network costs stay the same. Only with a heavier connection, 3x35A and above, do those fixed costs rise significantly. That is why we only go heavier when your situation genuinely calls for it.
Upgrading or replacing the fuse box?
These are two different things that often go together. Upgrading is the supply itself, the grid operator's work. The fuse box is the distribution inside the home, our work. To use three-phase, your fuse box needs to be ready for it.
In practice we therefore often replace or upgrade the fuse box in the same job. We co-ordinate everything so that you end up with one working, safe installation.
Connection ratings: from single to three-phase
What your supply can handle depends on the connection rating. For reference, the most common values with an indication of the capacity.
| Connection | Capacity (indicative) | Suitable for |
|---|---|---|
| 1x25A (single-phase) | ± 5.75 kW | Basic usage, many older homes |
| 1x35A (single-phase) | ± 8 kW | One extra heavy appliance |
| 1x40A (single-phase) | ± 9.2 kW | Tight for several appliances at once |
| 3x25A (three-phase) | ± 17 kW | EV charger, heat pump and induction hob together |
| 3x35A (three-phase) | ± 24 kW | Heavy usage, note higher fixed costs |
Indicative values (capacity = voltage x current). We calculate your actual load and advise what fits.
Price
What does upgrading to three-phase cost?
The price consists of three parts: the one-off costs from the grid operator, our work on the meter cabinet, and sometimes higher fixed network costs with a heavier connection. We explain it clearly upfront and give a fixed price for our part. Below is an indication.
Price guide
Fixed price upfront| Supply upgrade to 3x25A (Enexis, one-off) | ± € 275 |
| Meter cabinet ready for three-phase | € 600 to € 900 |
| Fuse box replacement (if required) | € 750 to € 1,500 |
| Load calculation and advice | on request |
Indicative prices incl. VAT. You will always receive a tailored quote.
Related services
Often done together
Upgrading rarely comes alone. These jobs often go with it.
Replace the fuse box
To use three-phase your fuse box needs to be ready for it. We often do both in the same job.
More infoInstall an EV charger
The most common reason for three-phase. We connect your EV charger correctly straight away.
More infoHome battery
Store the power you generate and use it across three phases? We connect your home battery safely.
More infoApply for a three-phase connection
Curious about exactly how the application to the grid operator works? We explain it step by step.
More infoReplace the meter cabinet
Just replacing the meter cabinet without upgrading? See what replacing the whole enclosure involves.
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
Good to know
Service area
Upgrade to three-phase in Noord-Brabant
Brabant is electrifying at pace, and you notice it on the grid. In some areas there is still plenty of capacity; in others the grid is approaching its limits, the so-called network congestion. We know the region and the grid operator Enexis, and check in advance whether there is capacity near you.
Our advice: do not wait until your heat pump or EV charger is already there. Apply for an upgrade in good time, as lead times range from a few weeks to months and in busy areas sometimes longer. We submit the application on time so you are ready when you need it.
Service area
Across Noord-Brabant
From major cities to smaller towns, active in:
Ready to have this job done professionally?
Request a free quote or call an electrician near you directly. You will always get a fixed price upfront.
Request a free quote
Response within 24 hours · no obligation
Step 1 of 3
Emergency? Call now
For emergencies, calling is the quickest way to get help. A technician is ready for you.
Call 085 - 060 12 34Thank you, request received!
We will call you back within 24 hours.
