The VS-120 is recommended for PV capacities up to 7kWp, and charges the battery with a maximum current of 120A. Its two MPPT inputs offer very flexible connections of the PV modules. The inputs can be connected in parallel, in series or independently. With the inputs connected in series, the string of PV modules can have a voltage up to 900V, all this without special tools and with reusable connectors.
The battery management parameters can be adjusted on the inside of the device. On the outside, an LED display indicates the battery charge current and state of the VS-120.
Given the specific system needs, several accessories can be added such as the Remote Control and Programming Centre RCC-02/03, a module with 2 auxiliary contacts ARM-02, a battery temperature sensor BTS-01, a battery status processor BSP-500/1200, or one of the communication sets Xcom-LAN/GSM/SMS.
The VS-120 has a remote entry which provides the option to control the system from several parameters that can be programmed with the RCC-02/03.
The combination of the VS-120 and Xtender series is the ideal solution for hybrid systems with several power sources such as solar PV, genset, etc.
Product No. R1040 Model VS-120 Electrical characteristics PV array side MPPT1 MPPT2 1+2 in parallel 1+2 in series Maximum solar power recommended (@STC) 3500W 3500W 7000W 7000W Maximum current 13A 13A 26A 13A Maximum solar open circuit voltage 600V 600V 600V 900V Minimum solar functional circuit voltage 200V 200V 200V 400V Recommended MPPT voltage 250-500V 250-500V 250-500V 500-750V Electrical characteristics battery side Maximum output current 60A 60A 120A 120A Nominal battery voltages 48V Operating voltage range 38 - 68V Battery grounding possibility Battery + or battery - Performances of the device Maximum efficiency >98% MPPT efficiency >99.8% Maximum stand-by self-consumption (48V) 1.25W Charging stages 4 stages: Bulk, Absorption, Float, Equalization Battery temperature compensation (available with accessory BTS-01) -3mV/°C/cell (25°C ref) default value adjustable -8 to 0 mV/°C Electronic protections PV reverse polarity + + Battery overvoltage Up to 80V Over temperature + Reverse current at night + Galvanic isolation + PV grounding possibility PV+, PV-, floating GroundFaultProtection Programmable Environment Operating ambient temperature range -20 to 55°C Humidity maximum 95%, non-condensing Ingress protection of enclosures IP20 Mounting location indoor General data Warranty 5 years ISO Certification 9001:2008 / 14001:2004 Weight 7.5kg Dimensions h/w/l (mm) 133 / 322 / 466 Solar generation connection (6mm2) SUNCLIX (Phoenix Contact Tool Free) Parrallel operation (separated PV arrays) up to 15 devices Max wire size 70 mm2 Glands M 20 x 1.5 Communication Networking cabling Studer communication BUS Remote control & Communication RCC-02/03, Xcom-232i / Xcom-LAN / Xcom-GSM / Xcom-SMS Menu languages English / French / German / Spanish Data logging With RCC -02/03, Xcom-232i on SD card - One point every minute Accordance to standards CE compliant EMC 2004/108/EC - LV 2006/95/EC - RoHS 2011/65/EU Safety IEC/EN 62109-1:2010 EMC (Electro Magnetic Compatibility) IEC/EN 61000-6-3:2011 - IEC/EN 61000-6-1:2005 Accessories Remote control RCC-02 or RCC-03 + Module Xcom-232i + Communication sets Xcom-LAN / Xcom-GSM / Xcom-SMS + Battery Status Processor BSP + 2 aux. contacts module ARM-02 + Battery temp. sensor BTS-01 (3m) + Communication cable CAB-RJ45-8-2 +