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Studer VarioString VS-120

Product information "Studer VarioString VS-120"

Studer VarioString VS-120

The VarioString responds to the toughest requirements in efficiency in solar installations. It also reduces the system costs by accepting PV strings up to 600 or 900Vdc. This allows for a more simple installation and reduces the installation time and material costs: reduction in cable cross-section and length, absence of junction box and string fuses. The two isolated MPPT inputs allow for the integration of PV strings with different electrical characteristics and orientations. The reinforced isolation between the PV modules and the battery allows for any combination of grounding schemes and an optimised system security.

VS-120-80 MPPT 1 MPPT 2 1 + 2 in parallel 1 + 2 in serie
Max. solar power 3500 W 3500 W 7000 W 7000 W
Max. current 13 A 13 A 26 A 13 A
Max. open Circuit Voltage 600 Vdc 600 Vdc 600 Vdc 900 Vdc
Min. functional voltage 200 Vdc 200 Vdc 200 Vdc 400 Vdc
Recommended MPPT voltage 250-500 Vdc 250-500 Vdc 250-500 Vdc 500-750 Vdc
Max. output current 60 A 60 A 120 A 120 A
Battery voltage 48 V nom. (38 - 68 Vdc)

 

Features and performances

  • Reduces Balance of System costs ( Eliminates expensive wiring for parallel strings, saving wires, connectors, junction boxes, fuses, space, time etc.)
  • Safe, simple and trouble free connection with SUNCLIXTM (Phoenix Contact "tool free") PV connector.
  • Fully protected against wrong wiring 
  • Simplified safety rules by full isolation between PV and battery and between MPPT inputs
  • Any grounding strategy applicable thanks to isolated MPPT inputs. Grounding system fault detection 
  • Fast precise best in class tracking algorithm brings MPPT efficiency >99%
  • World champion for efficiency in isolated converter with >98% conversion efficiency
  • 7kW per unit and up to 15 units in parallel: 105kW
  • Low self-consumption: <1.2W in night mode 
  • 4 step charger fully programmable for longer battery life
  • 9 LEDs to monitor status and current
  • Optimal usage in an Xtender system with a synchronized battery management
  • Comprehensive display, programming and data logging with the RCC-02/-03 SUNCLIXTM (Phoenix Contact "tool free") 2 pairs supplied with unit

 

Properties "Studer VarioString VS-120"
Betriebstemperatur (°C): -20° - +55°
Eigenverbrauch (mA): 25
Garantie (Jahre):: 5
Gewicht (kg): 7,5
Länge / Breite (Tiefe) / Höhe (mm): 133 / 322 / 466
Max. Eingangsspannung DC (V): 900
Maximaler Ausgangsstrom (A): 2 x 60
Modulstrom (A): 26
Nenn-Batterie Spannung (V): 48
Schutzart (IP): 20
Datasheets
Datenblatt Studer VS 120

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