Description
VarioString series MPPT
The VarioString high voltage MPPT solar charge controller ensures an optimal charge of the battery maximizing the solar production. First of its kind, the VarioString achieves the highest conversion efficiency in the world from high voltage solar power (900V) to 48V battery voltage, including a galvanic isolation between the PV and battery.
The VarioString solar charge controller maximizes the energy generated from solar panels in any solar installation. It contains an MPPT (Maximum Power Point Tracking) algorithm that continuously tracks the maximum power of the PV generator and automatically charges the batteries in an optimal way with all the available solar power.
VarioString-70 is an IP54 solar charge controller,PV Input 200 (min) to 600 Voc Maximize the energy generated from solar panels by adding a VarioString solar charge controller with maximum power point tracker (MPPT) to any solar installation.
An exceptional device
∙ Reduces Balance of System costs (eliminates expensive wiring for parallel strings)
∙ Safe, simple and trouble-free connection with SUNCLIX™ (Phoenix Contact “tool free”) PV connector
∙ Safety guaranteed, thanks to the reinforced isolation between the PV generator and battery,allowing for independent earthing of the battery and/or solar modules
∙ World champion for efficiency in isolated converter with >98 %
∙ Up to 15 VarioString in parallel on the same communication bus (105kW)
∙ 4 step charger fully programmable for longer battery life
∙ Low self-consumption: <1W in night time mode
∙ Display with 9 LEDs showing status and current
∙ Suitable for any solar and battery system
∙ Use with Bolanmu battery charger/inverter to synchronize battery management for optimal efficiency
Combine with a range of accessories
∙ Display, programming and data logging remote control (RCC-03)
∙ Communication sets (Wifi model)
∙ Communication module (Xcom-232i/XcomCAN)
∙ Battery temperature sensor (BTS-01)
∙ Battery Status Processor (BSP)
∙ Communication with lithium battery BMS (Xcom-CAN)
∙ 2 additional auxiliary contacts (ARM-02)
| VarioString-70 | VarioString-120 | |||
| Electrical characteristics PV array side | MPPT | MPPT 1/2 | 1+2 in parallel | 1+2 in series |
| Maximum solar power recommended(@STC) |
4200 W | 3500W | 7000W | 7000 W |
| Maximum current | 13 A | 13 A | 26 A | 13 A |
| Maximum solar open circuit voltage | 600V | 600V | 600V | 900V |
| Minimum solar functional circuit voltage | 100V | 100V | 100V | 200V |
| Recommended MPPT voltage | 250-500V | 250-500V | 250-500V | 500-750V |
| Electrical characteristics battery side | ||||
| Maximum output current | 70 A | 60 A | 120 A | |
| Nominal battery voltages | 48 V | |||
| Operating voltage range | 38 – 68V | |||
| Battery grounding possibility | Battery + or battery – | |||
| Performances of the device | ||||
| Maximum efficiency | >98% | |||
| MPPT efficiency | >98% | |||
| Maximum stand-by self-consumption | < 20 mA(1W) | <25 mA(1.25 W) | ||
| Charging stages | 4 stages: Bulk,Absorption,Floating,Equalization Number of steps, thresholds, end current and times adjustable with the RCC-02/-03 |
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| Battery temperature compensation (with accessory BTS-01/BSP) |
–3 mV /°C / cell (25°C ref) default value adjustable -8 to 0 mV /°C |
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| Electronic protections | ||||
| PV reverse polarity | √ | |||
| Over temperature | √ | |||
| Reverse current at night | √ | |||
| Galvanic isolation | √ | |||
| PV grounding possibility | PV +, PV -, floating | |||
| Ground fault Protection | Programmable | |||
| Environment | ||||
| Operating ambient temperature range | –20 to 55°C | |||
| Humidity | 100% | maximum 95 %, non-condensing | ||
| Ingress protection of enclosures | IP54 | IP20 | ||
| Mounting location | indoor | |||
| General data | ||||
| Weight | 5.51 kg | 7.5 kg | ||
| Dimensions h/w/l[mm] | 120 / 220 / 350 | 133 / 322 / 466 | ||
| Solar generation connection(6mm²) | SUNCLIX™ (Phoenix Contact Tool Free) | |||
| Parallel operation (separated PV arrays) |
Up to 15 devices | |||
| Max wire size | 35 mm² | 70 mm² | ||
| Glands | M 20 × 1,5 | 2 x PG21 | ||
| Communication | ||||
| Network cabling | Bolanmu communication BUS (included) | |||
| Configuration | RCC-02/-03, Internal DIP switches for basic settings | |||
| Data logging | With RCC-02/03, Xcom-232i on SD card · One point every minute | |||
| Accordance to standards | ||||
| Conformity | Low Voltage Directive (LVD) 2014/35/EU: EN/IEC 62109-1 Electromagnetic Compliance (EMC) Directive 2014/30/EU: EN/IEC 61000-6-2, 61000-6-4 |
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Application
Home Off-Grid & Back-Up Power Solutions
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