- Product Information
- Technical Descriptions
- Questions and Answers
- Dynamic charging and load balancing- charge with up to 32A/400V3-phase without needing to upgrade the main fuse
- Choose between Type 2 plug/ outlet or a fixed charging cable with Type 2 plug
- Integrated button in the charging plug for practical operation
- Built-in DC-RCM 6mA- no earth fault circuit breaker type B is required
- Supports 230V/3-phase charging- up to 11kW if the car supports it
Ratio Smart Box is a charging station which gives dynamic charging with up to 22kW and is developed for private and commercial use. The charging box offers ease of use, comfort and safe charging in accordance with regulations (IEC 61851 and IEC 62955).
Dynamic Charging and Load Balancing Smart box comes with a power sensor that measures power consumption in the house and will automatically adjust the charge according to how much energy is available in the house. This means that you can charge your car with up to 32A/400V/3-phase (22 kW) when the electricity consumption in the house is low.
Automatic Power Distribution The Smart Box ensures that the main fuse doesn't trip and will always prioritize everyday tasks such as cooking, heating and other types of household consumption. Likewise, the charging station is allocated full power (32A) at night so that you have a fully charged car the following morning.
Normal and Smart Charging Mode
The charging station has two charging modes: 1) Normal and 2) Smart.
Normal mode so you can choose one specific amperage between 6-32A with 1A steps.
Smart mode then the charging station will dynamically charge and adjust the charge according to how much electricity is available in the house, (the main fuse). You can set the minimum (6-16A) and maximum (10-32A), the charging station should dynamically balance the load. The settings are made easily via the buttons found at the front of the charging station.
Practical and Universal Solutions Ratio Smart Box charging station is supplied either with a type 2 plug/ outlet or a fixed charging cable making charging the car convenient and easy.
A type 2 plug/ outlet makes it flexible and can thus charge all types of plug-in hybrids and electric cars safely and quickly. This is something we generally recommend, as it is a universal solution that all cars can use.
The Smart Box is also designed so that the charging cable can be coiled around the charging station for more practical storage of the charging cable. At the same time, the model of the charging station with fixed charging cable has a plug holder integrated in the front of the charging box that protects against water and dirt.
Ratio and Tesla Smart Box supports up to 4 charging stations on one course. You can start with one, and then expand if you need to charge multiple electrical vehicles efficiently.
RCD-DD / DC-RCM (Residual current module)
New regulations (NEK 400:2018-722 norm) require that all new current courses that are to be used to charge electrical vehicles must have an earth fault circuit breaker type B or equivalent DC protection. The charging station has an integrated RCD-DD/ DC-RCM module of 6mA which takes care of the DC protection and means that you do not need earth fault protection type B installed in the fuse box in accordance with IEC 62955. A normal general earth fault circuit breaker (jordfeilautomat) type A will be sufficient
According to regulations on electrical equipment §21, we are obliged to inform our customers that all electrical equipment intended to be part of a fixed electrical installation can only be installed by an authorized and registered installation company installasjonsvirksomhet.
Use ladeguiden (our charging guide) if you are unsure if this product suits your plug-in hybrid or electric car.
||Type 2 contact / Type 2 plug|
|Length of Cable
||5 and 10 meters|
|Number of Phases||1 and 3|
||6-32A (up to 22kW)|
||230V / 400 VAC|
|Cover Ring||ABS, chrome|
|Earth Fault Protection
||Type A (AC) 30mA and RDC-DD / DC-RCM module 6mA|
|Charging Standards||IEC 61851-1, Mode 3|
|Operating Temperatures||-25°C - 40°C|
|Measurements||H 40,1cm x W 25,1cm x D 11cm|
|Security/Protection Class||IP54 - intended for outdoor use|
|Installation||Wall mounted. Simple and quick installation. Pre-wired cables.|
Questions and Answers
Do I have to have earth fault protection Type B on the current course if I install Ratio Home Box with DC-RCM? No, you do not need to install an earth fault protection Type B on the current course in the fuse box to meet the requirements (NEK 400:2018-722 norm). It will do with a normal circuit breaker/ combi circuit breaker with Type A on the course.
What does an electrician need for dynamic charging and load balancing to work at 32A? 1) Suitable cable and course for 32A 2) 4- wire signal cable between sensor box and charging station. If several charging stations are to be connected, just pull the signal cable between the first one and others following.
What is a supply cable?
A supply cable is a short cable where one end is mounted in the charging station and the other end is an industrial plug. It allows you to connect this directly to an industrial socket.
We are proud of our products and it is important for us that you, as a customer, are satisfied. That's why we give you a 2 year warranty on the vast majority of our products- with the exception of consumer goods. Look for the warranty logo to see what applies to this particular product. Our warranty means that this product should function as expected through it's entire warranty time. (In addition to your rights under the Consumer Goods Act). Read more about this warranty in our purchase conditions kjøpsbetingelser.