Electric Vehicle Charging Station Installation Service

Electric Vehicle Charging Station Installation Service

JT Mobility offer on-site inspection and installation of a charging station along with electrical installation.

Buying and installing charging stations and charging vehicles only works well on a small scale. A well-thought-out plan is essential if you’d like to charge several vehicles at the same location. In that case, it’s good to have an expert on your side: We’ll find you a reliable, sustainable and cost-effective solution for all electric vehicles, regardless of whether you’d be looking to charge a car, a commercial vehicle or a car park. Depending on how well your electric installation is prepared, you may incur additional costs. These will be set out in an individual offer.  Following are basic criteria to calculate the cost:




What type of electricity installation is the charging station designed to be used with ?
Is there already a domestic or industrial electric socket in the immediate vicinity of your parking place ?
How great is the distance between your parked car and the connection to the electricity system ?
How great is the distance from the charging station to the fuse box ?
Will an individual electricity meter have to be installed ?
Are any wall penetrations required ?

A Certified Installer

To install your charging station, the French law imposes since 2017 to appeal to a IRVE certified professional electrician (Recharge Infrastructures for Electric Vehicles). JT works with a network of certified electricians, accessible here . More and more electricians are certified, and the simplest is often buying the terminal of your choice on our site , then ask the licensed electrician of your choice to install it near you.

B Checking Available Power

It is important to check the total power of your electrical installation, and to deduce the maximum power consumption during peak consumption. You will then get the available power that will power your terminal. This step is important because the terminal will surely be the element that will consume the most in your home: a terminal of 11kW is equivalent to 11 small electric heaters. If the power is insufficient, it will be necessary to ask your energy supplier an increase of this one.

Example of calculation of available power:

Single Phase Installation: Look at the amperage of your main breaker and multiply it by 230V. Ex: 40A x 230V = 9.2kW. Then deduce from this total the max power you consume in instantaneous. Ex: 3 electric radiators of 1kW, 1 microwave oven 1kW, 1 washing machine1kW, (lighting is negligible). So, you have about 4kW left for your terminal.

Three Phase Installation: Look at the amperage of your main breaker and multiply it by 690 (3x230) V. Ex: 17A x 690V = 11.7kW. Then deduce from this total the max power you consume in instantaneous. Ex: 3 electric heaters of 1kW, 1 microwave oven 1kW, 1 washing machine 1kW (lighting is negligible). So, you have about 7kW left for your terminal.

C Dedicated Line and Mandatory Electrical Protections

A charging station must be installed on a dedicated line, with its own breaker coupled with its own differential switch . A release with current release is additional security not required, but allows you to obtain ZE Ready certification. Below are the specifications of these elements to be in good standing:


Single phase installation:

 Differential switch : Type A Hi, 30mA, 2P or 1P + N, 40A max

 Breaker : Min. C curve, 3kA min., 2P or 1P + N cutoff, 16 to 40A (choose 3 to 8A in addition to the rated current of the terminal)


Three-phase installation:

 Differential Switches : Type B, 30mA, 4P, 40A Max (One Type A is Enough , instead of type B, if the terminal is equipped with a DC leakage current detector, this is the case for terminals KEBA and ALFEN )

Breaker : Min. C curve, 3kA min., 2P or 1P + N cutoff, 16 to 40A (choose 3 to 8A in addition to the rated current of the terminal)



Charging power

(single- or triple-phase)

For working out the charging power, you will need the number of phases, the voltage and amperage of your power connection for the charging station. For a triple-phase connection, the way in which the charging station is connected to the network is also important. It will depend on whether the voltage is 230 V or 400 V, arranged in a star or delta connection. If you have this information to hand, you can easily work out the values using the following formula:

Charging power (single-phase alternating current):

Charging Power (3.7 kW) = Phases (1) x Voltage (230 V) x Amperage (16 A)

Charging power (triple-phase alternating current), star connection:

Charging Power (22 kW) = Phases (3) x Voltage (230 V) x Amperage (32 A)

Alternatively: charging power (triple-phase alternating current), delta connection:

Charging Power (22 kW) = Root (3) x Voltage (400 V) x Amperage (32 A)




How long does it take to charge an electric vehicle?

We've prepared a summary of all relevant electric cars, their available charging and their battery capacity where you can see how much time you will save per charge at a wall box, or how far you'll be able to drive after charging for an hour. We'll also give you a charging recommendation for your specific electric car.

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