next1
inverter-charger for offgrid and grid-tied applications
next1
The new smart inverter-charger for offgrid and grid-tied applications a heritage of our 38 years of experience. A single-phase 6500VA or 4500VA inverter-charger with low frequency topology ensuring the highest overload capability, robustness and the minimum standby consumption for a low TCO.
Low TCO
Reliability means less services and urgent emergency interventions.
Good efficiency saves energy.
Advanced battery management protects the most expensive part of the systems.
Durability
IP65 for use in every possible environment.
Designed, assembled, and tested in Switzerland.
Install once profit for a decade, thanks to high-quality components.
10 years warranty
Pure sine wave
Off/ongrid inverter of 6500VA/4500VA.
Full backup power.
Unstoppable peak power 12kVA/10.5kVA for 5sec.
One inverter to rule them all
Each of your applications can be powered by the next1
offgrid and backup application
solar autarky (self-sufficiency) with external solar charger or grid inverter
minigrids application
on board power and limited shore power compensation
mobile application
telecom application
hydro AC/DC power
wind AC/DC power
and more…
One inverter to rule them all
Each of your applications can be powered by the next1
offgrid and backup application
solar autarky (self-sufficiency) with external solar charger or grid inverter
minigrids application
on board power and limited shore power compensation
mobile application
telecom application
hydro AC/DC power
wind AC/DC power
and more…
One inverter to rule them all
Each of your applications can be powered by the next1
offgrid and backup application
solar autarky (self-sufficiency) with external solar charger or grid inverter
minigrids application
on board power and limited shore power compensation
mobile application
telecom application
hydro AC/DC power
wind AC/DC power
and more…
What customers think of next1
“The new next1 inverter surpassed our expectations in many ways. It is the perfect answer to the current problems we face with standard injecting solarsystems reducing power due to overinjected public grids. Placed between the grid and the existing installation, it renders the consumer into an autonomous unit, unaffected by outside factors. It is the real energy independence, that everybody wants. On top of that it protects against blackouts and maximises self-consumption.
The inverter is literally solid as a rock, has an incredible peak performance and is swarmcontrol-ready. It works with any type of battery and has a very clear app-interface to see what’s going on. We noticed that customers want a durable lifelong solution for their energy management at home. With 10 years of warranty and an adaptable, futureproof device the next1 exactly meets up with these expectations adding serious long-term value to any electrical installation”
Sam De Prins, Stafco in Belgium
Zero worry about environmental conditions
Designed to withstand the toughest environments, the next1 performs perfectly, no matter what the conditions:
– intense heat
– extreme cold
– high humidity
The next1 gives 80% of its nominal power at 45°C and even works at 60°C.
Thanks to its IP65 protection, it withstands rain, dust and even 100% humidity, ensuring reliable performance in any environment. Wherever your installation may be, this inverter will keep working, without compromise.
Zero worry about environmental conditions
Designed to withstand the toughest environments, the next1 performs perfectly, no matter what the conditions:
– intense heat
– extreme cold
– high humidity
The next1 gives 90% of its nominal power at 45°C and even works at 60°C.
Thanks to its IP65 protection, it withstands rain, dust and even 100% humidity, ensuring reliable performance in any environment. Wherever your installation may be, this inverter will keep working, without compromise.
Swiss made 
Proudly designed, assembled, and tested in Switzerland, ensuring the highest standards of quality and reliability. Every unit undergoes strict controls to ensure exceptional performance, long-term durability, and seamless operation in the most demanding environments. With Swiss-made excellence, you can trust the next1 to deliver a perfect sinus and reliability for years to come.
Install once profit for a decade
The next1 is designed to stand the test of time, just like our legacy inverters that have powered installations for decades, some even up to 30 years of operation
With Swiss engineering at its core, high-quality components, it ensures long-term reliability, efficiency, and peace of mind. So you can install once and profit for years to come for a great ROI.
Full interactive grid inverter
Including an AC source with double disconnection relay with the grid. This input complies with the latest grid-tied regulations in the UE and other regions.
Perfect and pure sinus
The next1 delivers an exceptionally pure sinusoidal wave, making it ideal for applications that demand a flawless signal.
This level of precision is so high that some of our customers use Studer inverters in offgrid in recording studios to eliminate electrical noise and interference due to a bad grid, ensuring uncompromised audio quality thanks to a great sinus.
Unstoppable peak power 12kVA for the nx1 6500-48 for 5sec
Built to power all your loads, including pumps, compressors and others. Inrush currents and peaks are made imperceptible, perfect for offgrid applications.
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.
A wide range of battery compatibility
The next1 is compatible with all 48V battery chemistries (lithium, lead, salt…), 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 3 decades of expertise in offgrid energy management, we have perfected battery optimisation to ensure a long-lasting performance. The next1 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.
Solar AC/DC
The philosophy we are bringing to our next1 is to work seamlessly with any brand of solar inverters coupled on AC and/or our solar charge controllers coupled on DC for new or retrofitting installations. Giving you greater flexibility and a wide choice of solar inverter/grid inverter brands for your project.
AC flex, a second source or an extra controlled load
The unique AC flex interface can be configured as a second source or an extra controlled load. Offering you a fully monitored connection for open possibilities: solar AC, genset, wind+hydro, V2L, load management and shedding…
Multi-units flexibility
Single-phase, bi-phase, three-phase, up to 3 units per phase for more powerful systems up to 58kVA. So that you can customize each system to your customer’s needs.
From now on, everything is included in next1.
nextOS, our operating system to configure, control and analyse your system, has been integrated directly into the device, so there’s no need for an external control screen. The nx interface is still available as an optional accessory, if your customer wants a physical display interface.
The user interface is accessible over the internet.
Built-in connectivity: acess point, wifi and ethernet, webinterface, CAN BMS, Modbus RTU/TCP, USB and more.
From now on, everything is included in next1.
nextOS, our operating system to configure, control and analyse your system, has been integrated directly into the device, so there’s no need for an external control screen. The nx interface is still available as an optional accessory, if your customer wants a physical display interface.
The user interface is accessible over the internet.
Built-in connectivity: acess point, wifi and ethernet, webinterface, CAN BMS, Modbus RTU/TCP, USB and more.
Easy monitoring and configuration via the app
Designed to monitor your system’s data, the Studer monitoring application is perfect for obtaining information about your system at a glance. It allows you to connect directly to the next1 web interface from your phone over your wifi network. All data are stored on European servers.
This app makes it easy for installers to set up and configure the next1 using their phone. By following the application’s built-in wizard, you will be guided through the entire procedure, from connection to the device’s wifi access point to final commissioning.
Unlock the potential of home automation integration
I/O: the potential of mini-domotics without additional hardware. These physical contacts on the next1 allow you to start up 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 next1 devices in complex and customized system architectures.
Unlock the potential of home automation integration
I/O: the potential of mini-domotics without additional hardware. These physical contacts on the next1 allow you to start up 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 next1 devices in complex and customized system architectures.
Full backup power with no warranty compromises
Designed to counter grid blackouts by providing a full-power backup. Our warranty policy has no maximum operating time without connection to the grid, so you can enjoy your electricity at all times. The grid is optional not mandatory.
Uninterrupted power, seamless genset integration
A genset can be connected to our next1 inverter/charger to provide emergency power for your installation when the battery is low or when the sun doesn’t shine enough. The inverter is also capable of automatically starting the genset.
Rack your wall-mounted version
The wall-mounted inverter/charger next1 can be inserted into a 19’ rack using an adapter plate.
So you can enjoy the versatility of rack installations with our next1 including complete professional solution integrating rack batteries, high index protection, controlled temperature among others. The rack environment for a limitless potential.
Options & accessories
nx1 rack plate
adaptation mouting plate for 19’’ rack
nx interface
next user interface
nx tempSensor
battery temperature sensor
nx pm
power meter with Modbus RTU
xcom 485i-nx
communication with vario solar charge controller
Technical data
next1
| nx1 6500-48 | nx1 4500-48 |
Inverter
| Continuous power @25°C | 4 500 VA | 3 500 VA |
| Power 30 min. @25°C | 6 500 VA | 4 500 VA |
| Power 5 sec. @25°C | 12 000 VA | 10 500 VA |
| Nominal line to neutral output voltage | pure sine wave 220/230/240 Vac (±1%) | Pure sine wave 110/120/130 Vac (±1%) |
| Nominal output frequency | 50/60 Hz (±0.02%) | 50/60 Hz (±0.02%) |
| Loads cosφ range | 0.1 – 1 | |
| Harmonic distortion (THD) | < 1% | |
Battery charger
| Nominal battery voltage (Input range) | 48 Vdc (38 – 68 Vdc) | 48 Vdc (38 – 68 Vdc) |
| Maximum charging current/power* | 125 Adc | 87 Adc |
| Charge characteristic | 6 steps: bulk, absorption, floating, equalization, reduced floating, periodic absorption |
| Temperature compensation | with nx tempsensor (included) |
AC source (*Grid or Genset)
| Maximum rated current | 80 Aac | 80 Aac |
| Operating line to neutral voltage range | 176 – 288 Vac | 176 – 288 Vac |
| Nominal line to neutral voltage | 220 / 230 / 240 Vac | 220 / 230 / 240 Vac |
| Nominal frequency* | 50 / 60 Hz | 50 / 60 Hz |
| Overvoltage category (OVC) | III | III |
| Grid code compliance* | 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 | 50 Aac | 50 Aac |
| Operating line to neutral voltage range | 176 – 288 Vac | 176 – 288 Vac |
| Nominal line to neutral voltage | 220 / 230 / 240 Vac | 220 / 230 / 240 Vac |
| Nominal frequency | 50 / 60 Hz | 50 / 60 Hz |
General data
5 to 95 % (non condensing)
| Product dimensions h/w/l and weight | 182 / 439 / 580 mm 39 kg | 182 / 439 / 580 mm 36 kg |
| Transport dimensions h/w/l and weight | 275 / 495 / 630 mm 42kg | 275 / 495 / 630 mm 39kg |
| Selfconsumption OFF / Standby / ON | 3 / 7 / 28 W | 3 / 6 / 26 W |
| 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 digital Input, 2 x analogical Input, 2 x Aux output rating 16 A each | |
| Interfaces | nx interface, datalogger USB 1-min resolution, 1 x RS485i, 1 x LAN, 2 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 | IP 65 | |