Products from the next smart inverter-charger series
smart inverter-charger
single phase 6500VA 48V
smart inverter-charger
three phase 16kVA 48V with solar
smart inverter-charger
three phase 16kVA 48V with solar
next3,
reduce your dependence on the grid, join the solar autarky!
high-end Swiss-made three phase inverter-charger with integrated solar MPPT for offgrid and grid-tied applications
next3, the allrounder that can do it all
3-phase 16kVA inverter-charger with 2 built-in high-voltage solar MPPT inputs 8 + 8 kW of 900Vdc.
The next3 is the 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…
next3, the allrounder that can do it all
3-phase 16kVA inverter-charger with 2 built-in high-voltage solar MPPT inputs 8 + 8 kW of 900Vdc.
The next3 is the allrounder that can do it all: total control of the production, storage, solar, and distribution of its electrical energy. Management of multiple gensets, 2x surge power in offgrid, different energy management possibilities, AC/DC-coupling, certified with main grid codes and many more…
Join the solar autarky
Achieve true energy independence.
Consume your own production, day and night.
Less electricity purchased from the grid, more long-term savings.
Uninterrupted, stable power supply of 16kVA.
100% off/ongrid
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
10 years warranty
Compact
Save time with quick and easy installation.
3-phase all in one inverter/charger with 2 built-in 900V solar MPPT inputs
One device replaces up to 6 devices in a typical installation.
Transfer switch integrated, no need of external backup setups.
Join the solar autarky
Achieve true energy independence.
Consume your own production, day and night.
Less electricity purchased from the grid, more long-term savings.
Uninterrupted, stable power supply of 16kVA.
100% off/ongrid
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
10 years warranty
Compact
Save time with quick and easy installation.
3-phase all in one inverter/charger with 2 built-in 900V solar MPPT inputs
One device replaces up to 6 devices in a typical installation.
Transfer switch integrated, no need of external backup setups.
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…
What customers think of next3
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Swiss made 
Proudly designed, assembled, and tested in Switzerland, ensuring the highest standards of quality and reliability that Studer Innotec is known for.
Every unit undergoes strict controls to ensure performance, long-term durability, and seamless operation in the most demanding environments.
With Swiss made excellence, you can trust the next3 to deliver reliability for years to come.
Swiss made
Swiss made
Proudly designed, assembled, and tested in Switzerland, ensuring the highest standards of quality and reliability that Studer Innotec is known for.
Every unit undergoes strict controls to ensure performance, long-term durability, and seamless operation in the most demanding environments.
With Swiss made excellence, you can trust the next3 to deliver reliability for years to come.
The King of solar autarky
The next3 is the solution for achieving solar autarky while staying connected to the grid. This powerful 16kVA three-phase inverter-charger seamlessly integrates solar production, battery storage, and grid interaction, giving you the best of both worlds: energy independence with the security of grid backup.
Whether it’s to reduce your reliance on the grid or to secure your energy supply in case of outages, the next3 offers unparalleled flexibility and autonomy. Experience the freedom of solar self-sufficiency (autarky) without compromise.
Full interactive grid inverter
Including an AC source with double disconnection relay from the grid. This input complies with the latest grid-tied regulations in the EU and other regions. The electricity grid is no longer your main source of power, but merely a temporary backup.
16kW of solar power for your PV installation
The next3 incorporates two high-voltage 900Vdc MPPT inputs of the latest generation for a 16kW integrated solar power system. PV can be oversized to 24kW for winter production.
Need more solar power? Discover AC/DC coupling
Do you need more solar power than the 16kW built into the next3?
Thanks to AC and DC coupling, it is possible to increase your solar capacity far beyond the 16 kW integrated into the next3. You can connect additional AC PV inverters on the AC flex input/output, or add more MPPTs on the DC side, allowing you to scale your solar production according to your energy needs.
The next3 can work with our vario series of solar chargers in DC coupling with the xcom 485i-nx accessory.
Choose your strategy regarding the use of your solar energy
Adapt your installation to your priorities with four simple strategies:
- Optimised self-consumption: use your solar energy during the day, store the surplus, and keep a reserve in case of power cuts.
- Full feed to the grid: you sell all your solar production, while keeping a full battery for backup.
- Zero export (Solar priority without injection): consume and store your energy, without ever sending it to the grid. The energy remains 100% local.
- Offgrid or weak grid mode: the battery recharges as soon as a source (generator or grid) is available, to guarantee autonomy in all circumstances.
A wide range of battery compatibility
The next3 is compatible with all 48V battery chemistries (lithium, lead, Na+…), either communicating or not. An integrated CAN-BMS interface ensures a plug and play solution with communicating lithium batteries. There is a very flexible battery profile configuration to help you to adapt to each technology.
Adaptative management of batteries
With more than three decades of expertise in offgrid energy management, we have perfected battery optimisation to ensure long-lasting performance. The next3 features our Battery Lifetime Optimizer (BLO), which intelligently adapts charge cycles to preserve battery health and extend its lifespan.
Thanks to precise charge control and advanced management algorithms, your batteries operate efficiently, reliably, and for the long run.
Power flow dispatcher®
System-oriented, the Power flow dispatcher® is our AI algorithm that coordinates the energy management of the entire system. Offering you the best possible management of your energy production.
Redistributing power between phases
In a three-phase electrical system, each phase ideally carries the same load. But in reality, some phases can be overloaded while others are underused. The power flow dispatcher helps adapt to the source limitations using the battery in the most versatile way, it can even perform phase balancing.
Unstoppable peak power and peak shaving
Built to power all your loads, including pumps, compressors and others peak power with 30kVA for 5sec. All loads can be powered in offgrid.
With peak shaving you can reduce the amount of electricity drawn from the grid (or generator) during high-demand periods by using stored energy from your batteries to supply the extra power. Peak power is reduced, and so are the associated costs.
AC flex, a second source or an extra controlled load
The unique AC flex connection can be configured to use a second AC source or an extra controlled load.
For loads, it offers you a fully monitored connection for open possibilities: solar AC, genset, wind+hydro, V2L, load management and shedding… The programming is done independently for each phase: L1, L2, and L3. This means that for a multi-unit system with 3 next3 units, there can be up to 9 single-phase controllable loads.
Multi-units flexibility for more powerful systems up to 48kVA
Up to three next3 units can be used to create a high-power inverter-charger system, allowing you to customize the installation according to customer needs. It is also possible to combine multi-units and multi-battery systems, even allowing different battery technologies.
The three next3 work as one system, but the PV inputs are independent. The AC flex input/output, the AUX relays and CMD IN of each device can be programmed independently.
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.
Full backup power without loss warranty
Designed to counter grid blackouts by providing full-power backup, the next3 ensures energy availability at all times. Our warranty policy doesn’t include limits on operating time without a grid connection, so you can enjoy your electricity whenever you need it.
Uninterrupted power, seamless genset integration
Gensets can be connected to our next3 inverter/charger to provide emergency power for your installation when the battery is low or when the sun isn’t shining enough. The inverter is also capable of automatically starting the genset with contacts.
19" rack ready
The next3 is also available in a 19” rack version for a smooth professional integration.
Enjoy the versatility of rack installations with our next3 rack. You can include it in a complete professional solution integrating rack batteries, high index protection, controlled temperature among others. The rack environment for a limitless potential.
Options & accessories
nx3 st
next3 full option (standard)
nx3 sti
next3 full option + interface
nx3 rack st
next3 full option (standard)
nx3 rack sti
next3 full option + interface
nx interface
next user interface
xcom 485i-nx
communication with vario solar charge controller
nx pm
power meter with Modbus RTU
nx wifidongle
wifidongle for wireless internet
nx bypass box
bypass box for redundancy
nx tempSensor
battery temperature sensor
Options & accessories
nx3 st
next3 full option (standard)
nx3 sti
next3 full option + interface
nx3 rack st
next3 full option (standard)
nx3 rack sti
next3 full option + interface
nx interface
next user interface
xcom 485i-nx
communication with vario solar charge controller
nx pm
power meter with Modbus RTU
nx wifidongle
wifidongle for wireless internet
nx bypass box
bypass box for redundancy
nx tempSensor
battery temperature sensor
Technical specifications
next3 hybrid inverter-charger
In case of technical data change, this bloc below needs to update, it is use for mobile display of technical data
Inverter
| Power 30 min. @25°C | 16000 VA |
| Continuous power @25°C | 15000 VA |
| Power 5 sec. 25°C with solar / inverter / 1-phase | 30000 / 24000 / 10000 VA |
| Nominal output voltage, line to neutral* | pure sine wave 220/230/240 Vac (±1%) |
| Nominal output voltage, line to line* | pure sine wave 380/400/415 Vac (±1%) |
| Nominal output frequency* | 50/60 Hz (±0.02%) |
| Nominal battery voltage (Input range) | 48 Vdc (36 – 68 Vdc) |
| Maximum charging current / power* | 300 Adc / 15000 W |
Solar PV
| Number of MPPT inputs | 2 |
| Maximum PV short circuit current per PV input / nominal current | 27 Adc / 20 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 |
| MPP voltage range recommended | 300 – 700 Vdc |
Transfer
AC source (*Grid or Genset)
| Maximum 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 |
| Overvoltage category (OVC), Grid code compliance* | CAT III, EU Commission Regulation 2016/631 (NC RfG), EN 50549-1:2019, VDE-AR-N 4105:2018, IEC 62116, IEC 61727 |
AC flex (*Controlled 2nd AC load or Genset)
| Maximum 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 |
AC loads AC output
| Maximum output current | 3 x 102 Aac |
General data
| Product dimensions h/w/l and weight | 320 / 450 / 760 mm, 58 kg |
| Transport dimensions h/w/l and weight | 600 / 800 / 720 mm, 75 kg |
| Selfconsumption OFF / Standby / ON | 6 / 7 / 41 W (+5 W with nx interface) |
| I/O Communications | 2 x nx communication bus RJ45/8, 1 x CAN BMS, 1 x RS485i (Modbus), 1 x nx tempSensor |
| 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 + Studer monitoring app |
| Safety+EMC conformity (CE marking) | EU Low Voltage Directive (LVD) 2014/35/EU, EU Electromagnetic Compliance (EMC) 2014/30/EU |
Ingress Protection according to IEC60529 IP20 | Operating ambient temperature range -20 to 55°C | Relative humidity operation range 5 to 95% (non-condensing) | Mounting location: Indoor, unconditioned
In case of technical data change, this bloc below needs to update, it is use for pc display of technical data
Inverter
| Power 30 min. @25°C | 16000 VA |
| Continuous power @25°C | 15000 VA |
| Power 5 sec. 25°C with solar / inverter / 1-phase | 30000 / 24000 / 10000 VA |
| Nominal output voltage, line to neutral* | pure sine wave 220/230/240 Vac (±1%) |
| Nominal output voltage, line to line* | pure sine wave 380/400/415 Vac (±1%) |
| Nominal output frequency* | 50/60 Hz (±0.02%) |
| Nominal battery voltage (Input range) | 48 Vdc (36 – 68 Vdc) |
| Maximum charging current / power* | 300 Adc / 15000 W |
Solar PV
| Number of MPPT inputs | 2 |
| Maximum PV short circuit current per PV input / nominal current | 27 Adc / 20 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 |
| MPP voltage range recommended | 300 – 700 Vdc |
Transfer
AC source (*Grid or Genset)
| Maximum 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 |
| Overvoltage category (OVC), Grid code compliance* | CAT III, EU Commission Regulation 2016/631 (NC RfG), EN 50549-1:2019, VDE-AR-N 4105:2018, IEC 62116, IEC 61727 |
AC flex (*Controlled 2nd AC load or Genset)
| Maximum 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 |
AC loads AC output
| Maximum output current | 3 x 102 Aac |
General data
| Product dimensions h/w/l and weight | 320 / 450 / 760 mm, 58 kg |
| Transport dimensions h/w/l and weight | 600 / 800 / 720 mm, 75 kg |
| Selfconsumption OFF / Standby / ON | 6 / 7 / 41 W (+5 W with nx interface) |
| I/O Communications | 2 x nx communication bus RJ45/8, 1 x CAN BMS, 1 x RS485i (Modbus), 1 x nx tempSensor |
| 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 + Studer monitoring app |
| Safety+EMC conformity (CE marking) | EU Low Voltage Directive (LVD) 2014/35/EU, EU Electromagnetic Compliance (EMC) 2014/30/EU |
Ingress Protection according to IEC60529 IP20 | Operating ambient temperature range -20 to 55°C | Relative humidity operation range 5 to 95% (non-condensing) | Mounting location: Indoor, unconditioned