Explore the full range of Studer power electronics products

Hybrid inverters

	next3	next3 19" rack
Type of product	All-in-one with solar MPPT
Power 30min	16kVA
Continuous power	15kVA
Power 5sec	30kVA
Phases delivered	Three-phase
Multi-unit operation	3 (48kVA)
Voltage and frequency	230V/50Hz
Battery voltage	48V
Battery technology	All technologies
Inverter DC to AC	•
Charger AC to DC	•
Solar DC to DC	• 2 MPPT of 8kW 900V
AC coupling	•
DC coupling with our vario solar chargers	• with the xcom 485i-nx
Offgrid	•
Ongrid	• compatible with grid codes
Gridfeeding	•
Grid forming inverter	•
Grid blackout backup	• full power
AC flex programmable second AC input/output	•
IP protection	IP20
Free full monitoring	studer monitoring app / web portal
Integrated communication interface (CAN/BMS/Internet/WIFI/WEB interface/Modbus, etc.)	•
Type of configuration	with nx interface
Mounting format	wall mounted	rack 19"

next3:

Three-phase inverter-charger with integrated solar MPPT. 10-year warranty, operates during blackouts, handles 3× nominal power of overload, and supports on/offgrid use with power sources as solar, genset, wind, hydro, or the grid.

Compatible with all 48V battery technologies and can be scaled with multiple units for more power (48kVA). Every parameter is customizable.

Battery inverters

next1, xtender and aj series

	next1	xts	xtm	xth	aj 275-400	aj 500-700	aj 1000-1300	aj 2100-2400
Type of product	Inverter-charger	Inverter-charger	Pure sine wave inverter
Power 30min**	6500VA	900 to 1400VA	1500 to 4000VA	3000 to 8000VA	275 to 400VA	500 to 700VA	1000 to 1300VA	2100 to 2400VA
Power 5sec**	12kVA	2.3 to 2.8kVa	3.4 to 10.5kVa	7.5 to 21kVa	450VA to 1000VA	1000VA to 1400VA	2200VA to 2800VA	5000VA to 5200VA
Phases delivered	Single-phase	Single-phase	Single-phase
Battery voltage**	48V	12/24/48V	12/24/48V	12/24V
Battery technology	All technologies	All technologies	Lead
Inverter DC to AC	•	•	•
Charger AC to DC	•	•	x
Solar DC to DC	x	x	option PWM
AC coupling	•	•	x
DC coupling with our vario solar chargers	•	•	x
Multi-unit operation**	Parallel/three-phase, up to 6 units (39kVA).	Parallel/three-phase, up to 9 units (72kVA).	x
Voltage and frequency**	230V/50Hz	230V/50Hz or 120V/60Hz	230V/50Hz, optional 120V/60Hz
Offgrid	•	•	•
Ongrid	•	•***	x
Gridfeeding	•	•***	x
Grid forming inverter	•	•	x
Grid blackout backup	• full power	• full power	x
AC flex programmable second AC input/output	•	x	x
IP protection	IP65	IP54	IP20	IP20	IP20
Integrated communication interface (CAN/BMS/Internet/WIFI/WEB interface/Modbus, etc.)	•	x (in option with external accessories)	x
Interface of configuration	nx interface or embedded WIFI gateway	with rcc02/03 remote control	x

next1:

Our new grid codes certified single-phase inverter-charger with 10-year warranty. Operates during blackouts and supports on/offgrid use with power sources as solar, genset, wind, hydro, or the grid.

Built-in connectivity: acess point, wifi and ethernet, web interface, CAN BMS, Modbus RTU/TCP, USB and more.

Compatible with all 48 V battery technologies, multi-units for more power (39kVA). Every parameter is customizable.

xtender series:

The xtender is a multifunctional battery inverter-chargers. Build systems that manage all energy sources found in offgrid, ongrid, and hybrid systems (solar, genset, wind, hydro, grid).

They adapt to all types of applications, with powers ranging from 0.9 kVA to more than 72 kVA in multi-units. The inverter can be tailored to your needs by freely customizing every parameter.

aj series:

The aj series of pure sine wave inverters convert battery power into high-quality 230/120 Vac for all appliances.

Designed for standalone applications, they offer top comfort and reliability. Made in Switzerland and delivered ready to use, they are a true “plug and forget” solution.

Solar chargers

	vt 40-145	vt 65-175	vt80-175	vs 70	vs 120
Type of product	Low voltage solar chargers	High voltage solar chargers
Max solar power**	625W to 2500W	1000W to 4000W	1250W to 5000W	4200W	3500W to 7000W
Maximum curent PV**	35A	60A	75A	13A	13 or 26A
Max. solar open circuit voltage**	80 to 145Vdc	80 to 175Vdc	80 to 175Vdc	600Vdc	600 to 900Vdc
Battery voltage**	12/24/48V	12/24/48V	12/24/48V	48V	48V
Battery technology	All technologies
Max. output current**	40A	65A	80A	70A	60 or 120A
Solar DC to DC	• MPPT
Compatible with our inverter-chargers	• xtender direct communication next with xcom 485i-nx
Multi-unit operation with xtender inverter-chargers**	15 (up to 37.5kW)	15 (up to 60kW)	15 (up to 75kW)	15 (up to 63kW)	15 (up to 105kW)
Multi-unit operation with next inverter-chargers**	5 (up to 12.5kW)	5 (up to 20kW)	5 (up to 25kW)	5 (up to 21kW)	5 (up to 35kW)
Offgrid	•
Ongrid	•
IP protection	IP54	IP54	IP54	IP54	IP20

variotrack (vt) series:

The variotrack low voltage solar charge controllers ensure optimal energy harvesting from solar panels, delivering reliable charging for any 12, 24, or 48 V battery system. The accuracy of the MPPT algorithm, the high peak efficiency and low internal consumption ensure an optimal valorisation of the energy produced by the PV modules.

They are the ideal companion to the next and xtender inverter-chargers.

variostring (vs) series:

The variostring high voltage solar charge controllers ensure optimal energy harvesting from solar panels, delivering reliable charging for 48 V battery system.
Use PV strings up to 900 V for simpler installation and wiring.
The accuracy of the MPPT algorithm, the high peak efficiency and low internal consumption ensure an optimal valorisation of the energy produced by the PV modules.

They are the ideal companion to the next and xtender inverter-chargers.

Integrated ESS solutions

infra nx3:

Complete energy infrastructure for your facility. The infra solar autarky hub secures the energy supply of a building. The integrated next3 hybrid inverter centralizes the management of the solar generation, the storage, the grid and the loads.

You can choose your own infra configuration to match your specific project requirements (choose the number of batteries, the number of next3…) and our team will assemble the cabinet for you.

Hybrid inverters

Battery inverters

Solar chargers

Integrated ESS solution

Hybrid inverters

Battery inverters

Solar chargers

Integrated ESS solution

Hybrid inverters

schematic diagram of the next3

next3:

next3

next3 rack

Battery inverters

schematic diagram of the next1

schematic diagram of xtender series

schematic diagram of aj series

next1:

xtender series:

aj series:

next1

xtender xts

xtender xtm

xtender xth

aj 275/400

aj 500/700

aj 1000/1300

aj 2100/2400

Solar chargers

schematic diagram of the vario series

variotrack (vt) series:

variostring (vs) series:

vt 40-145

vt 65-175

vt 80-175

vs 70

vs 120

Integrated ESS solutions

infra nx3:

infra nx3