infra with next3 19" rack,
complete energy storage system in a cabinet
professional high-end rack integration for a clean, all-in-one energy architecture
Plug-and-play rack integration
Pre-wired and factory-tested cabinet for quick installation.
Integrated next3 rack inverter, rack batteries, bypass, ventilation, and protections.
Tested EN61439-1, EN61439-2, 2014/35/UE, CH – OMBT 734.26 Ed.2015
Complete energy autonomy
The grid is optional not mandatory.
A grid-tied solution, able to work 100% offgrid.
Full backup capabilities.
Peak power supplying any type of loads.
New grid codes compliant.
We build your concept
We build your modular concept with single or multiple next3 inverter-charger 16kVA units.
From one to six batteries of 5kWh in the same cabinet as the next3, or up to ten additional batteries in a battery cabinet.
Choose whether you want to integrate a bypass, add a heater for use in cold temperatures, and many more options.
Professional look
Professional finish, hidden cable management, hidden internal protection and inverter charger. Everything is in the cabinet for an elegant installation with IP54 protection.
Ideal for professional environments and demanding clients.
All equipment is enclosed in a robust, lockable cabinet.
Minimalist aesthetic, maximum functionality.
Plug-and-play rack integration
Pre-wired and factory-tested cabinet for quick installation.
Integrated next3 rack inverter, rack batteries, bypass, ventilation, and protections.
Tested EN61439-1, EN61439-2, 2014/35/UE, CH – OMBT 734.26 Ed.2015
Complete energy autonomy
The grid is optional not mandatory.
A grid-tied solution, able to work 100% offgrid.
Full backup capabilities.
Peak power supplying any type of loads.
New grid codes compliant.
We build your concept
We build your modular concept with single or multiple next3 inverter-charger 16kVA units.
From one to six batteries of 5kWh in the same cabinet as the next3, or up to ten additional batteries in a battery cabinet.
Choose whether you want to integrate a bypass, add a heater for use in cold temperatures, and many more options.
Professional look
Professional finish, hidden cable management, hidden internal protection and inverter charger. Everything is in the cabinet for an elegant installation with IP54 protection.
Ideal for professional environments and demanding clients.
All equipment is enclosed in a robust, lockable cabinet.
Minimalist aesthetic, maximum functionality.
Designed for a wide range of uses
Flexibility of use for your applications
offgrid and backup application
solar autarky (self-sufficiency)
minigrids application
hydro or wind AC/DC power
and more…
Configuration example
The infra solar autarky hub secures the energy supply of a building, the integrated inverter-charger next3 rack centralizes the management of the solar generation, the storage, the grid and the loads. Dive into the infra concept and explore all the options that we can assemble for you.
one next3 rack inverter-charger of 16kVA, bypass, three batteries of 5kWh (total storage of 15kWh)
one next3 rack inverter-charger of 16kVA, bypass, up to six batteries of 5kWh (total storage of 30kWh)
up to three next3 rack inverter-charger of 16kVA (total power of 48kVA) with bypass in one cabinet
batteries must be added in a second cabinet
infra battery, up to ten batteries (total storage of 50kWh)
up to three next3 rack inverter-charger of 16kVA (total power of 48kVA) with bypass and batteries each in a cabinet
up to six batteries of 5kWh (total storage of 30kWh) in each cabinet
Find out more about the functions of the next3 rack inverter-charger integrated in the infra cabinet
The next3 rack is the next3 device in 19″ rack version an allrounder that can do it all: total control of the production, storage, solar, and distribution of its electrical energy. Multi-units flexibility for more powerful systems up to 48kVA. Management of multiple gensets, 2x surge power in offgrid, different energy management possibilities, AC/DC-coupling, certified with main grid codes and many more…
Ready to be installed in a rack cabinet in combination with rack batteries and electrical protections for a full professional solution.
What customers think of the infra solution
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Swiss made 
At our factory in Sion we manufacture the next3 19″ rack inverter-charger. We assemble the infra cabinet and install the inverter-charger, batteries and accessories according to the selected items. Studer technicians cable all the elements and the full infra cabinet is tested before shipment.
Swiss made
Swiss made
At our factory in Sion we manufacture the next3 19″ rack inverter-charger. We assemble the infra cabinet and install the inverter-charger, batteries and accessories according to the selected items. Studer technicians cable all the elements and the full infra cabinet is tested before shipment.
One single and central user interface
The next interface is the new gateway to the next ecosystem powered by nextOS, an intuitive smart platform to configure, control and analyse your system. Making life easier for both professional installers and final users.
Thanks to this physical screen, you can :
- View solar production, consumption, battery charge status, and energy flows in real time
- Easily configure the inverter’s operating modes and parameters (self-consumption, backup, injection, etc.)
- Monitor the system remotely via an integrated web interface and a monitoring application, all without subscription.
Easy monitoring via the app and the web portal
Designed to monitor your system’s data, the Studer monitoring application is perfect for obtaining information about your system at a glance.
We offer our monitoring tools completely free of charge, both the Studer monitoring app for end-users and the Studer web portal for installers, because we believe that reliable, professional, and complete monitoring should be a standard, not an option. All data is stored on European servers.
Unlock the potential of home automation integration
I/O: mini-domotics without additional hardware. The potential free contacts on the next3 allow you to start certain appliances according to the conditions specified in the inverter configuration, without the need for an external home automation system.
For more complex systems, you can use our open modbus/API “open studer” to fully integrate the next3 devices into complex and customized system architectures.
Options & accessories
nx bypass
optional rack 80A bypass
batteries
1 to 6 battery 5kWh unit in one infra (min 3 units recommended)
infra battery
1 to 10 additional 5kWh battery units in a separate cabinet
Options & accessories
nx bypass
optional rack 80A bypass
batteries
1 to 6 battery 5kWh unit in one infra (min 3 units recommended)
infra battery
1 to 10 additional 5kWh battery units in a separate cabinet
Technical specifications
infra nx3
In case of technical data change, this bloc below needs to update, it is use for pc, tablets and phone display of technical data
System (specific data per inverter)
| Continuous power 25°C | 15000 VA |
| Power 30 min. 25°C | 16000 VA |
| Power 5 sec. 25°C with solar / inverter / 1-phase | 30000 / 24000 / 10000 VA |
| Nominal battery voltage (Input range) | 48 Vdc (36 – 68 Vdc) |
| Maximum charging current / power* | 300 Adc / 15000 W |
AC source (Grid or genset)
| Max rated current | 3 x 80 Aac |
| Operating voltage range, line to neutral | 176 – 288 Vac |
| Nominal voltage, line to neutral / line to line* | 220 – 230 – 240 / 380 – 400 – 415 Vac |
| Nominal frequency* | 50 / 60 Hz |
Solar PV (specific data per inverter)
| Number of MPPT inputs | 2 |
| Maximum PV short circuit current per PV input | 27 Adc |
| Maximum PV open voltage (Voc) | 900 Vdc |
| Start up voltage / Shut off voltage | 200 / 100 Vdc |
| Maximum solar power produced (electronic limitation) | 2 x 8000 W |
| Maximum solar power recommended (@STC) | 2 x 12000 W |
AC flex (*Controlled 2nd AC load or Genset) (specific data per inverter)
| Max rated current | 3 x 80 Aac |
Battery (from 1 to 6 modules, min 3 modules recommended)
| Manufacturer, model | Weco, 5k3-xp rack LV / ZYC SIMPO LV |
| Module capacity | 5.3 kWh / 5.12kWh |
| Single module nominal voltage | 51.2 Vdc / 51.2 Vdc |
| Usable capacity | 100 Ah / 100 Ah |
| Dimension | 550x430x155 mm / 480x440x134 mm |
| Weight | 57.3 kg / 46 kg |
Weco battery capacity 3 units 15.9 kWh, 4 units 21.2 kWh, 5 units 26.5 kWh, 6 units 31.8 kWh
ZYC battery capacity 3 units 15.36 kWh, 4 units 20.48 kWh, 5 units 25.6 kWh, 6 units 30.72 kWh
General data
| Product dimensions h/w/l and weight | 1990±30 / 605 / 1050 mm – 816 kg (with 6 battery units) |
| Selfconsumption OFF / Standby / ON | 6 / 7 / 41 W (+5 W with nx interface) |
| Multifunction I/O contacts | 2 x Input, 2 x Output, rating 16 A each |
| Interfaces | nx interface, datalogger USB 1-min resolution, 1 x RS485i, 1 x CANi, 1 x LAN, 4 x USB, nx wifidongle, studer portal + easy monitoring App |
| Safety+EMC conformity (CE marking) | EU Low Voltage Directive (LVD) 2014/35/EU, EU Electromagnetic Compliance (EMC) 2014/30/EU |
| Ingress Protection | IP54 |
| Temperature control | air cooling |
Operating ambient temperature range -20 to 55°C | Relative humidity operation range 0 to 100 % | Mounting location Indoor, unconditioned.