The VT-80 is recommended for PV capacities up to 5kWp, and charges the battery with a maximum current of 80A.
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 VT-80.
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 VT-80 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 VT-80 and Xtender series is the ideal solution for hybrid systems with several power sources such as solar PV, genset, etc.
Product No. R1040 Model VT-80 Electrical characteristics PV array side At nominal battery voltage 12V / 24V / 48V Maximum solar power recommended (@STC) 1250W @12V / 2500W @ 24V/ 5000W @48V Maximum solar open circuit voltage 80V @12V battery voltage / 150V @24V&48V battery voltage Maximum solar functional circuit voltage 75V @12V battery voltage / 145V @24V&48V battery voltage Minimum solar functional circuit voltage Above battery voltage Electrical characteristics battery side Maximum output current 80A Nominal battery voltages Automatic / manual set to 12, 24 or 48V Operating voltage range 7 - 68V Performances of the device Power conversion efficiency (in a 48V typical-system) >99% Maximum stand-by self-consumption (48V) 25mA > 1.2W Maximum stand-by self-consumption (24V) 30mA > 0.8W Maximum stand-by self-consumption (12V) 35mA > 0.5W 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 Up to -150V Battery reverse polarity Up to -150V Battery overvoltage Up to 150V Over temperature protected Reverse current at night prevented by relays Environment Operating ambient temperature range -20 to 55°C Humidity 100% Ingress protection of enclosures IP54, IEC/EN 60529:2001 Mounting location indoor General data Warranty 5 years ISO Certification 9001:2008 / 14001:2004 Weight 5.5kg Dimensions h/w/l (mm) 120 / 220 / 350 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 EU declaration of conformity Low Voltage Directive (LVD) 2014/35/EU: -EN 50178:1997
Electromagnetic Compliance (EMC) Directive 2014/30/EU: -EN 61000-6-2:2005, -EN 61000-6-4:2007/A1:2011
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 + Cooling Module ECF-01 + Battery temp. sensor BTS-01 (3m) + Communication cable CAB-RJ45-8-2 +