STUDER next3: The Next Generation of Battery-Based Systems

The STUDER next3 is a versatile 3-phase smart inverter charger featuring built-in solar MPPT inputs. It is designed to deliver outstanding performance for both off-grid and on-grid applications, bringing battery-based systems to the next level with Swiss quality.

Key Features and Capabilities

Versatile Application: Suitable for grid-tied, 100% off-grid, and backup power applications, providing peak power to any type of loads.
All-in-One Solution: Compact and versatile, customized to project needs.
Energy Source Integration: Outstanding performance and integration of solar, grid, and generator energy sources.
3-Phase Power: Features 3-phase input (AC source), 3-phase output (AC loads), and a 3-phase AC flex configurable as a second input or controlled output.
Flexible Installation: Available in wall-mounted or 19" rack versions for professional integration.
Smart Energy Management: AI models offer smooth operation with all battery technologies, including lithium batteries via CAN communication (BMS).
Multi-Unit System: Up to three next3 units can be paralleled for increased power, supporting up to 48 kVA.
Remote Monitoring: Enables remote monitoring and control via the STUDER professional portal and the easy monitoring App.

Options and Accessories

next3 st: Standard model.
next3 rack st: Standard model in a 19" rack version.
next3 full option: Includes advanced features.
next3 full option + interface: Full option with the next3 user interface.
nx tempSensor: Battery temperature sensor for optimal charging.
nx bypass box: AC cabinet with bypass for 25, 40, 60, 80A configurations.
nx wifidongle: Dongle for Wi-Fi connectivity.

Technical Specifications

Inverter + Battery Charger

Continuous Power (25°C): 15000 VA
Power (30 min, 25°C): 16000 VA
Power (5 sec, 25°C): 30000/24000/10000 VA (Solar/Inverter/1-phase)
Nominal Output Voltage: Pure sine wave 220/230/240 Vac (±1%) (line to neutral), 380/400/415 Vac (±1%) (line to line)
Nominal Output Frequency: 50/60 Hz (±0.02%)
Nominal Battery Voltage: 48 Vdc (36-68 Vdc range)
Maximum Charging Current/Power: 300 Adc / 15000 W
Charge Characteristic: 6 steps (bulk, absorption, floating, equalization, reduced floating, periodic absorption)
Temperature Compensation: Supported with nx tempsensor (not included)

Solar PV

Number of MPPT Inputs: 2
Max PV Short Circuit Current per Input: 27 Adc
Maximum PV Open Voltage (Voc): 900 Vdc
Start up Voltage: 200 Vdc
Shut off Voltage: 100 Vdc
Maximum Solar Power Produced: 2 x 8000 W
Maximum Solar Power Recommended (@STC): 2 x 12000 W
MPP Voltage Range Recommended: 300-700 Vdc
Max Efficiency (Solar to Grid/EU/CEC): 97%/92%/93%
MPP Efficiency (Static/Dynamic): >99%
Max Efficiency (Solar to Battery): 95%

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 Vac / 380-400-415 Vac
Nominal Frequency: 50/60 Hz
Overvoltage Category (OVC): 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 (2nd Source or Load)

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 Vac / 380-400-415 Vac
Nominal Frequency: 50/60 Hz

AC Loads (Output)

Maximum Output Current: 3 x 102 Aac

General Data

Product Dimensions (H/W/L) and Weight: Wall-mounted: 320/450/760 mm, 58 kg; Rack 19": 350(8U)/485/675 mm, 58 kg
Transport Dimensions (H/W/L) and Weight: 600/800/720 mm, 72 kg
Self-consumption: OFF: 6 W, Standby: 7 W, ON: 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 (16 A rating 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: 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

Certifications and Compliance

Factory Certification: ISO 9001:2015, ISO 14001:2015
Product Compliance: Meets various standards including EU Commission Regulation 2016/631 (NC RfG), EN 50549-1:2019, VDE-AR-N 4105:2018, IEC 62116, IEC 61727, EU Low Voltage Directive (LVD) 2014/35/EU, and EU Electromagnetic Compliance (EMC) 2014/30/EU.

Warranty Information

For detailed warranty conditions, please visit studer-innotec.com/studer-care.

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