The VS-70 is recommended for PV capacities up to 4.2kWp, and charges the battery with a maximum current of 70A. The solar modules are connected in series to form one single string (up to 600V) connected to the VS-70, 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-70.
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-70 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-70 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-70 Electrical characteristics PV array side Maximum solar power recommended (@STC) 4000W Maximum current 13A Maximum solar open circuit voltage 600V Minimum solar functional circuit voltage 200V Recommended MPPT voltage 250-500V Electrical characteristics battery side Maximum output current 70A 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) 20mA > 1W 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 max 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 100% Ingress protection of enclosures IP54 Mounting location indoor General data Warranty 5 years ISO Certification 9001:2008 / 14001:2004 Weight 5.51kg Dimensions h/w/l (mm) 120 / 220 / 350 Solar generation connection (6mm2) SUNCLIX (Phoenix Contact Tool Free) Parrallel operation (separated PV arrays) up to 15 devices Max wire size 35 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 +