Ratio EV charger
A Ratio EV charger comes directly from the factory in Nijkerk, where Ratio Electric has been designing and building power solutions since 1960. For your electric car, this means an EV charger from a Dutch family business with decades of experience in power electronics, supported by a 5-year warranty and its own service line. At Wallbox Discounter, you will find the complete Ratio range, from the Solid with socket to the commercial io6 Pro with integrated MID meter. Each model can be ordered separately or directly including installation by a certified installer.
- Produced in Nijkerk, the Netherlands
- 5-year manufacturer’s warranty
- Dynamic load balancing and solar panel integration via the Sense kit
- Available as a socket model or with a fixed cable of 5 or 7.5 metres
- One app, Ratio EV, for monitoring and settings
Why choose a Ratio EV charger?
Ratio Electric has specialised in EV charging since 2008 and builds all its chargers in-house in Nijkerk. This short production chain is reflected in the details: sturdy plastic housing with IP54 protection, a simple mounting base and components that can be serviced in the Netherlands. For most households, that is a reassuring thought, because an EV charger will usually be mounted to your wall for 10 years or longer.
The Ratio EV App is another strong point. You can view live charging sessions, schedule charging during off-peak hours and set notifications. In combination with the Sense 3-phase kit, consisting of a sensor box and 3 CT clamps, you also get dynamic load balancing: your EV charger measures the current in your electrical cabinet and automatically adjusts the charging power, so the circuit is never overloaded.
The four Ratio models at a glance
In our range, you will find four Ratio models: Solar, Solid, io6 and io6 Pro. They look very similar on the outside, but there are clear functional differences. All models are available as a socket version or with a fixed cable of 5 or 7.5 metres and charge up to 22 kW on a 3-phase connection.
| Model | Display | App | MID meter | Suitable for |
|---|---|---|---|---|
| Ratio Solar | No | Yes | No | Home use with solar panels |
| Ratio Solid | Yes | No | No | Home use without app connection |
| Ratio io6 | No | Yes | No | Business reimbursement via E-flux |
| Ratio io6 Pro | No | Yes | Yes | Business use, ERE certificates in the Netherlands, MID requirement |
Ratio Solar
The Solar is Ratio’s most complete home charger. It does not have a display, but it does offer full integration with the Ratio EV App. Combine it with the Sense kit and your car will preferably charge using the electricity generated by your solar panels. Ideal if you want to maximise the return from your solar panels.
Ratio Solid
The Solid does have a display on the charger, but no connection to the Ratio EV App. You can read your charging history directly from the screen. The other smart functions, including dynamic load balancing with the Sense kit, are still available. A logical choice if you prefer not to work through an app.
Ratio io6
The io6 is primarily intended for business use. It has a built-in option to automatically reimburse charging sessions through E-flux. Dynamic load balancing and solar panel integration are optional via the 63A Sense 3-phase kit.
Ratio io6 Pro
The io6 Pro is the top commercial version with an integrated MID-certified kWh meter. This means it meets the legal metering requirement for reclaiming charging costs and is suitable for ERE certificates in the Netherlands. Please note: ERE registration only applies in the Netherlands. The Pro has 4G, Wi-Fi, LAN and Bluetooth on board, plus an integrated RFID reader for access via charging cards. The housing has IP54 protection and IK08 impact resistance. Support for ISO 15118, Plug & Charge, where the car is automatically recognised without a charging card, depends on the Ratio model and firmware. If this function is essential for your business setup, ask our customer service team for the latest specifications of the version you are considering.
Which model suits your situation?
Do you have solar panels and want to get the most out of your own generated electricity? Choose the Solar and add the Sense kit. Do you prefer working without an app and simply want a reliable 22 kW home EV charger? Then the Solid is your match. Do you drive for business and want to easily reclaim charging sessions from your employer or client? The io6 with E-flux is made for that. Do you need ERE certificates in the Netherlands or have a legal MID requirement? Then only the io6 Pro offers the right setup.
Not sure about your electrical connection? A 22 kW Ratio only uses its full power on a 3-phase 32A circuit. On a single-phase connection, it charges up to 7.4 kW. In situations with multiple appliances on one connection, such as a washing machine, dishwasher and oven running at the same time, an EV charger with load balancing prevents the fuse from tripping.
Combining with solar panels
The Solar, io6 and io6 Pro work together with a PV installation via the Sense kit. The principle is simple: as soon as your panels produce surplus electricity, the charger automatically switches to solar power. If the output drops below approximately 6A, it switches back to grid power or pauses charging, depending on your settings. This allows you to charge more affordably and use more of the electricity you generate yourself. You can find more practical examples on the page about EV chargers with solar panels.
Installation and accessories
A Ratio EV charger should always be installed by a certified installer. The installer connects the power cable in the electrical cabinet, mounts the sensor box of the Sense kit and checks whether the CT clamps are placed on the correct phase. We are happy to arrange this for you through our installation service. For a neat finish without drilling into the façade, a Ratio mounting pole is also available. Replacement or longer cables can be found on the Ratio charging cables page.
Frequently asked questions about Ratio
Is a Ratio EV charger a good choice?
Yes, Ratio combines Dutch production, a 5-year warranty and a complete set of smart functions in one EV charger. The value for money is strong and the Ratio EV App is clear and easy to use. There is a suitable model for both home and business use.
What is the difference between the io6 and the io6 Pro?
The Pro has an integrated MID-certified meter on board and is suitable for ERE certificates in the Netherlands. Please note: ERE registration only applies in the Netherlands. The standard io6 does not have this integrated meter, but it can reimburse charging sessions through E-flux. If you have a legal MID requirement, choose the Pro.
Does a Ratio EV charger work with a dynamic energy contract?
Yes. Via the Ratio EV App and the P1 port of the Sense kit, you can set the charger to use the cheapest hours of your dynamic contract. This allows you to automatically benefit from low electricity prices, for example at night.
How long is the warranty on a Ratio EV charger?
All Ratio models come with a 5-year manufacturer’s warranty. Service is handled directly through Ratio Electric in Nijkerk, with Dutch support by phone and email.
Order your Ratio EV charger today
Have you chosen a model, or are you still unsure which version suits you best? Call us on 074-7002114, message us via WhatsApp or send us an email. We are happy to think along with you, including about the right Sense kit and installation. Order before 15:00 and we will ship your Ratio EV charger today from our warehouse in the Netherlands. Ready to charge from your own home or business location.