REhub

REhubs Provide the Ideal Way to Add Solar To Existing Inverters

REhub (pronounced REE- hub or ARR- EE – hub) range of products bring Solar and conventional battery backup (that use Inverters) into a Solar dominant hub (controlled by REhub), upgrading existing back up to one with Solar.

REhub MPPT Eco	REhub MPPT 12/24V	REhub MPPT 36V	REhub MPPT 48V
Battery System Voltage : 12/24V – Auto detect	Battery System Voltage : 12/24V – Auto detect	Battery System Voltage : 36V	Battery System Voltage : 36V /48V – must be selected at first time start
Rated Output Current : 25A	Rated Output Current : 50A	Rated Output Current : 35A	Rated Output Current : 40A
Array Voc: 110V	Array Voc: 110V	Array Voc: 110V	Array Voc: 160V
Typical Array Size : 1. 100 – 500Wp for 12V batt 2. 300 – 1000Wp for 24V batt	Typical Array Size : 1. 300 – 700Wp for 12V batt 2. 300 – 1400Wp for 24V batt	Typical Array Size : 1. 600 – 1500 Wp	Typical Array Size : 1. 1500 – 2000Wp for 36V batt 2. 1500 – 2700 Wp for 48V batt
Typical Array Configuration: 1. Single 72 Cell for both 12/24V batt output 2. Multiple panels can be connected in series up to 110Voc	Typical Array Configuration: 1. Multiple panels can be connected in series up to 110Voc. Connect in series-parallel when Voc of array exceeds 110V	Typical Array Configuration: 1. Minimum TWO 72 cell panel or equivalent in series. Connect in series-parallel when Voc of array exceeds 110V	Typical Array Configuration: 1. Three 72 cell panels in series and multiple such strings in series-parallel arrangement
Typical Inverter Size to pair with: 1. 800VA/12V 2. 1500VA /24V	Typical Inverter Size to pair with: 1. 800VA/12V 2. 1500VA /24V	Typical Inverter Size to pair with: 1. 2500VA/36V	Typical Inverter Size to pair with: 1. 2500VA/36V 2. 3500VA/48V

Specifications

REhub Variant
REhub Variant	REhub MPPT 48	REhub MPPT 36	REhub MPPT 12/24	REhub MPPT 12/24	REhub MPPT Eco
Battery System Voltage	48V	36V	36V	Auto detect 12/24V	Auto detect 12/24V
Recommended Solar module STC Wp	1500Wp – 2700Wp	1500Wp – 2000Wp	600Wp – 1500Wp	300Wp – 700Wp for 12V batt 300Wp – 1400Wp for 24V batt	100Wp – 500Wp for 12V batt 300Wp – 1000Wp for 24V batt
Output Current – Continuous , Max	40A	40A	35A	50A	25A
PV Open Circuit Voltage (VOC)	160V	160V	110V	110V	110V
PV MPPT Voltage range	> Batt V to 160V	> Batt V to 160V	> Batt V to 110V	> Batt V to 110V	> Batt V to 110V
Power Conversion Efficiency (typical)	95% Typ	95% Typ	95% Typ	95% Typ	95% Typ
Full load output voltage	Same as battery voltage	Same as battery voltage	Same as battery voltage	Same as battery voltage	Same as battery voltage
Float Mode Charge Voltage (Factory Configurable)	54V	40.5V	40.5V	13.5V/27V	13.5V/27V
Bulk Mode Charge Voltage (Factory Configurable)	57.6V	43.2V	43.2V	14.4V/28.8V	14.4V/28.8V
Ambient temperature range	'-10°C to 50°C	'-10°C to 50°C	'-10°C to 50°C	'-10°C to 50°C	'-10°C to 50°C
Ports	1 PV -Ve input 1 PV +Ve Input 1 +Ve BatteryTerminal output 1 -Ve terminal for current monitoring 1 -Ve Battery Terminal output 1 Numbers of 3 Port AC Terminal for Input and Output AC Live and Neutral 1 External Temperature Sensor connector 1 RS485 Port	1 PV -Ve input 1 PV +Ve Input 1 +Ve BatteryTerminal output 1 -Ve terminal for current monitoring 1 -Ve Battery Terminal output 1 Numbers of 3 Port AC Terminal for Input and Output AC Live and Neutral 1 External Temperature Sensor connector 1 MODBUS - RS485 Port ( RJ45 Interface)	1 PV -Ve input 1 PV +Ve Input 1 +Ve BatteryTerminal output 1 -Ve terminal for current monitoring 1 -Ve Battery Terminal output 1 Numbers of 3 Port AC Terminal for Input and Output AC Live and Neutral 1 External Temperature Sensor connector 1 MODBUS - RS485 Port ( RJ45 Interface)	1 PV -Ve input 1 PV +Ve Input 1 +Ve BatteryTerminal output 1 -Ve terminal for current monitoring 1 -Ve Battery Terminal output 1 15A and 6A 3 Pin Socket 1 15A 1 Meter long wire with 3 Pin Plug 1 MODBUS - RS485 Port ( RJ45 Interface)	1PV -Ve input 1PV +Ve input 1Battery -Ve Input 1Battery +Ve 1 15A and 6A 3 Pin Socket 1 6A 1 Meter long wire with 3 Pin Plug 1 MODBUS - RS485 Port ( RJ45 Interface)
Display	16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV	16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV	16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV	16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV	16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV
Dimension	307X182X107mm	307X182X107mm	253X134X106mm	253X134X106mm	200X120X95mm
Modes	Auto (Solar à Mains à Battery) Offgrid (Solar à Battery à Mains) On1Day/OnAlways ( Mains + Solar )	Auto (Solar à Mains à Battery) Offgrid (Solar à Battery à Mains) On1Day/OnAlways ( Mains + Solar )	Auto (Solar à Mains à Battery) Offgrid (Solar à Battery à Mains) On1Day/OnAlways ( Mains + Solar )	Auto (Solar à Mains à Battery) Offgrid (Solar à Battery à Mains) On1Day/OnAlways ( Mains + Solar )	Auto (Solar à Mains à Battery) Offgrid (Solar à Battery à Mains) On1Day/OnAlways ( Mains + Solar )
Changing Modes	Mode and Select Switch to navigate through an heirarchical Menu	Mode and Select Switch to navigate through an heirarchical Menu	Press and Hold Mode Switch, Release to Select Mode Option	Press and Hold Mode Switch, Release to Select Mode Option	Press and Hold Mode Switch, Release to Select Mode Option
Weight	~4 Kgs	~4 Kgs	~3 Kgs	~3 Kgs	~2 Kgs
Cooling	2 Fans, PWM controlled based on Temperature	2 Fans, PWM controlled based on Temperature	1 Fans, PWM controlled based on Temperature	1 Fans, PWM controlled based on Temperature	1 Fans, PWM controlled based on Temperature
Battery Reverse polarity protection	Electronically protected	Electronically protected	Electronically protected	Electronically protected	Electronically protected
PV Reverse and Short circuit protection	Electronically protected	Electronically protected	Electronically protected	Electronically protected	Electronically protected
Over current protection protection	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout
Over temperature protection protection	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout

REhub MPPT Eco

Key Specifications

Battery System Voltage : 12/24V – Auto detect
Rated Output Current : 25A
Array Voc: 90V
Typical Array Size :
- 100 – 500Wp for 12V batt
- 300 – 1000Wp for 24V batt
Typical Array Configuration:
- Single 72 Cell for both 12/24V batt output
- Multiple panels can be connected in series up to 90Voc
Typical Inverter Size to pair with:
- 800VA/12V
- 1500VA /24V
Specifications
User Manual

REhub MPPT 12/24V

Key Specifications

Battery System Voltage : 12/24V – Auto detect
Rated Output Current : 40A
Array Voc: 90V
Typical Array Size :
- 300 – 700Wp for 12V batt
- 300 – 1400Wp for 24V batt
Typical Array Configuration:
- Multiple panels can be connected in series up to 90Voc. Connect in series-parallel when Voc of array exceeds 90V
Typical Inverter Size to pair with:
- 800VA/12V
- 1500VA /24V
Specifications
User Manual

REhub MPPT 36V

Key Specifications

Battery System Voltage : 36V
Rated Output Current : 30A
Array Voc: 90V
Typical Array Size :
- 600 – 1500 Wp
Typical Array Configuration:
- Minimum TWO 72 cell panel or equivalent in series. Connect in series-parallel when Voc of array exceeds 90V
Typical Inverter Size to pair with:
- 2500VA/36V
Specifications
User Manual

REhub MPPT 48V

Key Specifications

Battery System Voltage : 36V /48V – must be selected at first time start
Rated Output Current : 40A
Array Voc: 150V
Typical Array Size :
- 1500 – 2000Wp for 36V batt
- 1500 – 2700 Wp for 48V batt
Typical Array Configuration:
- Three 72 cell panels in series and multiple such strings in series-parallel arrangement
Typical Inverter Size to pair with:
- 2500VA/36V
- 3500VA/48V

REhub MPPT enables the addition of Solar PV to existing power back up solutions

With REhub MPPT add Solar PV to existing back up solutions without the expense of replacing the UPS/Inverter and Batteries and upgrade to Solar!

REhub MPPT controls the charging of the batteries from from two sources – the grid (charging by the existing UPS/ Inverter) and the installed Solar PV.

Adding Solar PV is the logical way to extend the back up hours and reduce electricity bills- but must be done the right way. Add too little PV Watts-the Solar addition does not really serve the purpose of long back up. Size up your day time loads and add at least enough Solar PV to take care of day time loads. However, here is the nub, if you add enough Solar PV to take care of day time loads, the power available from the PV panels can exceed the safe charge rate to the batteries. The charge rate to the Lead acid batteries MUST be limited to 10-15% of the battery AH and REhub does this while providing sufficient power to the loads.

REhub MPPT provides the right combination for adding Solar PV. REhub MPPT intelligently controls the charging process in a way that keeps the batteries safe and therefore extends their life. They allow the maximal use of Solar power.

The unit is based on an high efficiency MPPT charge controller that maximizes the extraction of energy from the PV panel.

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It has survived not only five centuries. Lorem Ipsum is simply dummy text of the new design printng and type setting Ipsum take a look at our round.

When an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.

REhub MPPT enables the addition of Solar PV to existing power back up solutions

With REhub MPPT add Solar PV to existing back up solutions without the expense of replacing the UPS/Inverter and Batteries and upgrade to Solar! REhub MPPT controls the charging of the batteries from from two sources – the grid (charging by the existing UPS/ Inverter) and the installed Solar PV. Adding Solar PV is the logical way to extend the back up hours and reduce electricity bills- but must be done the right way. Add too little PV Watts-the Solar addition does not really serve the purpose of long back up. Size up your day time loads and add at least enough Solar PV to take care of day time loads. However, here is the nub, if you add enough Solar PV to take care of day time loads, the power available from the PV panels can exceed the safe charge rate to the batteries. The charge rate to the Lead acid batteries MUST be limited to 10-15% of the battery AH and REhub does this while providing sufficient power to the loads. REhub MPPT provides the right combination for adding Solar PV. REhub MPPT intelligently controls the charging process in a way that keeps the batteries safe and therefore extends their life. They allow the maximal use of Solar power. The unit is based on an high efficiency MPPT charge controller that maximizes the extraction of energy from the PV panel.

REhub Keeps Batteries Safe

When the energy from the Solar panels are servicing the loads or when both the sources of energy (Solar and Grid through the Inverter) are charging the batteries, the charge current to the batteries can be higher than what is safe for the batteries. With its unique NET CURRENT to battery monitoring and control REhub MPPT ensures that the charge rate to the batteries is maintained at all times within its safe limits, preventing premature failure of the batteries.

REhub MPPT Maximizes Solar PV Without Excessively Cycling The Batteries

REHub MPPT provides a hub like interface for the connected PV panels, the existing Inverter, the utility grid and the batteries.

REHub MPPT controls the flow of power from the available sources to the connected loads through the inverter. REHub MPPT exercises this control to maximize the usage of Solar energy while making sure the back up needs are not compromised.

Its easy to maximize Solar Power utilization by drawing power from the batteries even when the grid is available. The issue is that the batteries are ‘cycled’ and the life of the batteries are compromised. Further, back up may not be available when its really needed.

REhub MPPT minimizes the cycling of the batteries and gives priority to keeping the batteries charged to make sure back up is available when needed.

REhub MPPT Solar Charging is High efficiency MPPT Based

MPPT stands for Maximum Power Point Tracking. Extracting power from the panels using MPPT can deliver up to 30% more energy compared to PWM chargers. Using MPPT also allows for the use of economical larger PV panels which are produced in volumes for MW plants on rooftops. REhub’s power electronics design also does power conversion at better than 95% efficiency.

REhub MPPT Lowers System Costs

REhub MPPT’s innovative Power electronics design allows for a very high Input to Output ratio of Voltages without loss of efficiency. This translates into the ability to wire the PV panels in an all series arrangement for 12V systems and a Series parallel arrangement for 24V systems- reducing system costs.

There are savings in

Wiring costs: Input Voltage can be much higher than the battery system Voltage and therefore the size of the wire can be smaller = Lower costs in wiring.
PV Panel costs :On a per Watt-Peak (Wp) basis larger PV panels (More cells- more commonly used in MW installations) cost lesser than Smaller PV Panels ( Lesser cells).
Lesser BoS – BoS : Balance of systems like lesser connectors, lesser civil works, lesser structures because of smaller Panels, simpler wiring result in lower costs.

Remotely Monitor and Configure the REhubs

All REhubs natively integrate Modbus over RS 485. The data is accessible through a data port in RJ45 form factor. A wired (Amberlink USB) and wireless accessory (Amberlink WiFi) is available for purchase separately from Amberroot.

Amberlink USB : Amberlink USB provides an electrically isolated interface to REhubs to a Windows PC through the USB port. With our proprietary Windows software, it is possible to monitor, configure and log the output of the REhubs.
Amberlink WiFi : Amberlink WiFi enables converting your REhub into an IOT ( Internet of Things) device for remote monitoring and configuration of the REhubs. Amberlink WiFi connects to your home WiFi network and stores live data on the cloud for monitoring and analysis.

Extensive configurability and customization of various parameters

Setpoints in REhubs are parameterized and can be configured based on individual requirements using Amberlink USB or Amberlink WiFi.

Example of the parameters that are configurable include the various Voltage setpoints for Bulk / Float charging, selecting Voltages based on LiFePO4 vs Lead acid chemistries, the Voltages to disconnect or reconnect the mains, the Current values like maximum bulk charging current, the minimum absorb current to exit to Float, the maximum output current etc. These parameters can be changed to suit custom requirements based on field conditions.

Panels / array configuration for your installation

REhubs support a high Voc for a given output Battery Voltage – and does an efficient job converting the input power at a high Voltage to output power at Battery Voltage. This gives the installer enormous flexibility in wiring the panels.

When there is a shadow free area on your rooftop, go for Series – Parallel connection, with as many panels in series as the Voc of the charger will allow. For example, for REhub 12/24V – the Voc supported is 110V and the installer can therefore connect two 72 cell panels in series with output Battery Vnom as 12V. With more panels in series, the installer saves on connector costs, wire cross section. For the same cross section of the wires , compared to a parallel connection, the I2R losses are lesser.
Since REhubs safely limit the output of the charger to the rated output current, the installer can oversize the array – to deliver more output from the array at every instance . It is also now possible to bias the different panels in the array towards East or West to spread the energy generation through the day.

Frequently Asked Questions on Product Selection

1. Can 24V Panel be connected with 12V battery?

72 cell panels (sometimes 60 Cell Panels) in market parlance are called 24V panel. These panels typically have Open Circuit Voltage of 44V. Since REhub MPPTs support 90Voc of array, you can even be connecting two of these panels in series for a 12V battery output.

2. What happens if Output current from the Solar array is more than the rated output of REhub?

REhubs are designed to safely limit the output as per the rated Current. So, if you installed Solar panels that can deliver output that is higher than the rated current of REhub – REhub will deliver the full rated output current longer – the rated output of REhub is the continuous rated output. With Solar installations, it is a good idea to oversize the panels because the Solar output varies through the day and will peak in the afternoon.

3. How to determine which REhub is right variant?

Designing the system for your Solar addition is easy and details are available here. If you already have the batteries for your existing back up – that variable is already fixed à Determine the Load and therefore the Solar array size à based on the expected output of the array – select the REhub with the Current rating and the appropriate battery Voltage.

4. Does using MPPT chargers for Offgrid Rooftop Solar installation worth the extra money compared to ‘PWM’ chargers?

When using Solar energy for powering daytime loads, the Mains Input to the Inverter is switched off and Solar + Battery is used to power the loads. When the Load is on the battery (and Solar) the battery Voltage drops, moving away from the Voltage at which maximum power is available. In a PWM charger, this results in lower power extraction just when more power is required to sustain the load and the battery Voltage. With MPPT chargers however, the maximum power available is extracted and the system has a chance to ‘refill’ the batteries with Solar energy.

More questions and answers are available in the Learn Section.

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Frequently Asked Questions on Product Selection

1. Can 24V Panel be connected with 12V battery?

72 cell panels (sometimes 60 Cell Panels) in market parlance are called 24V panel. These panels typically have Open Circuit Voltage of 44V. Since REhub MPPTs support 110Voc of array, you can even be connecting two of these panels in series for a 12V battery output.

2. What happens if Output current from the Solar array is more than the rated output of REhub?

3. How to determine which REhub is right variant?

4. Does using MPPT chargers for Offgrid Rooftop Solar installation worth the extra money compared to ‘PWM’ chargers?

More questions and answers are available in the Learn Section.

Installation

Adding Solar PV to existing power back up solutions is now easy with REhub MPPT.

REhub stands for renewable energy hub – and will function as the back up hub in your home or office.

Connect the incoming grid, the output of the UPS inverter, battery terminals and Solar PV to REhub MPPT and you are ready to enjoy long and a safe back up supplemented with Solar energy

Access the cable compartment after removing the L Plate.

Cable entry is through the slot provided. Close the L Plate after the terminals are sufficiently tightened and all the connections are checked for correctness

Panels / array configuration for your installation

When there is a shadow free area on your rooftop, go for Series – Parallel connection, with as many panels in series as the Voc of the charger will allow. For example, for REhub 12/24V – the Voc supported is 110V and the installer can therefore connect two 72 cell panels in series with output Battery Vnom as 12V. With more panels in series, the installer saves on connector costs, wire cross section. For the same cross section of the wires , compared to a parallel connection, the I2R losses are lesser.
Since REhubs safely limit the output of the charger to the rated output current, the installer can oversize the array – to deliver more output from the array at every instance . It is also now possible to bias the different panels in the array towards East or West to spread the energy generation through the day.

REhub MPPT Wiring diagram

Double check with a multimeter the Voc of the array before connecting the wires: The Voc must be below the specified maximum Voc of the Solar MPPT charger ( 110Voc for REhub MPPT Eco and REhub MPPT 12/24V / 36V units and 160Voc for REhub MPPT 48). The unit starts up as soon as the battery connections are made. Unlike other charge controllers, the battery negative of the Inverter is connected to REhub( in the models supporting Battery Net Current Monitoring and Control) . At the battery positive terminal, there would be two wires, one from REhub and the other from the Inverter. The battery negative terminal however will have only one wire, from REhub.6

Wire Panels in an ALL SERIES arrangement or a Series Parallel arrangement.
Note the input Voc (Open circuit Voltage of the PV panels) limit
Make sure Battery Voltage Matches REhub MPPT output
Check the installed Battery Voltage.
Make the wiring connections
Carefully check the polarity before connecting the wires. Connect the wires in the appropriate ports as show in the picture.
- Disconnect the AC input ‘Live’ from the Inverter. Connect to AC Socket of REhub MPPT. Now connect the AC wire with Plug from REhub to the Mains supply. CAUTION : Do not connect the AC wire to any of the DC ports. REhub MPPT WILL be destroyed beyond repair if you do so. DO NOT SWITCH ON MAINS TILL REHub does the Auto detection if Battery Voltage
- Disconnect from the battery terminal the NEGATIVE output of the Inverter and connect to the Battery monitoring port of REhub MPPT. Connect one more wire of similar cross section to the battery terminal from the other terminal available on REhub MPPT ( in the models supporting Battery Net Current Monitoring and Control)
- Connect the PV wires to the PV ports of REhub MPPT
- Connect to common +Ve terminal the Solar + Ve and Battery +Ve wires.

Check to make sure REhub MPPT has been installed correctly
If REhub MPPT is installed correctly the LCD will switch on, and will auto detect the Battery system Voltage and start functioning. Make sure the correct Battery Voltage is detected
Now Switch on the Mains.

Specifications

REhub Variant
REhub Variant	REhub MPPT 48	REhub MPPT 36	REhub MPPT 12/24	REhub MPPT 12/24	REhub MPPT Eco
Battery System Voltage	48V	36V	36V	Auto detect 12/24V	Auto detect 12/24V
Recommended Solar module STC Wp	1500Wp – 2700Wp	1500Wp – 2000Wp	600Wp – 1500Wp	300Wp – 700Wp for 12V batt 300Wp – 1400Wp for 24V batt	100Wp – 500Wp for 12V batt 300Wp – 1000Wp for 24V batt
Output Current – Continuous , Max	40A	40A	35A	50A	25A
PV Open Circuit Voltage (VOC)	160V	160V	110V	110V	110V
PV MPPT Voltage range	> Batt V to 160V	> Batt V to 160V	> Batt V to 110V	> Batt V to 110V	> Batt V to 110V
Power Conversion Efficiency (typical)	95% Typ	95% Typ	95% Typ	95% Typ	95% Typ
Full load output voltage	Same as battery voltage	Same as battery voltage	Same as battery voltage	Same as battery voltage	Same as battery voltage
Float Mode Charge Voltage (Factory Configurable)	54V	40.5V	40.5V	13.5V/27V	13.5V/27V
Bulk Mode Charge Voltage (Factory Configurable)	57.6V	43.2V	43.2V	14.4V/28.8V	14.4V/28.8V
Ambient temperature range	'-10°C to 50°C	'-10°C to 50°C	'-10°C to 50°C	'-10°C to 50°C	'-10°C to 50°C
Ports	1 PV -Ve input 1 PV +Ve Input 1 +Ve BatteryTerminal output 1 -Ve terminal for current monitoring 1 -Ve Battery Terminal output 1 Numbers of 3 Port AC Terminal for Input and Output AC Live and Neutral 1 External Temperature Sensor connector 1 RS485 Port	1 PV -Ve input 1 PV +Ve Input 1 +Ve BatteryTerminal output 1 -Ve terminal for current monitoring 1 -Ve Battery Terminal output 1 Numbers of 3 Port AC Terminal for Input and Output AC Live and Neutral 1 External Temperature Sensor connector 1 MODBUS - RS485 Port ( RJ45 Interface)	1 PV -Ve input 1 PV +Ve Input 1 +Ve BatteryTerminal output 1 -Ve terminal for current monitoring 1 -Ve Battery Terminal output 1 Numbers of 3 Port AC Terminal for Input and Output AC Live and Neutral 1 External Temperature Sensor connector 1 MODBUS - RS485 Port ( RJ45 Interface)	1 PV -Ve input 1 PV +Ve Input 1 +Ve BatteryTerminal output 1 -Ve terminal for current monitoring 1 -Ve Battery Terminal output 1 15A and 6A 3 Pin Socket 1 15A 1 Meter long wire with 3 Pin Plug 1 MODBUS - RS485 Port ( RJ45 Interface)	1PV -Ve input 1PV +Ve input 1Battery -Ve Input 1Battery +Ve 1 15A and 6A 3 Pin Socket 1 6A 1 Meter long wire with 3 Pin Plug 1 MODBUS - RS485 Port ( RJ45 Interface)
Display	16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV	16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV	16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV	16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV	16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV
Dimension	307X182X107mm	307X182X107mm	253X134X106mm	253X134X106mm	200X120X95mm
Modes	Auto (Solar à Mains à Battery) Offgrid (Solar à Battery à Mains) On1Day/OnAlways ( Mains + Solar )	Auto (Solar à Mains à Battery) Offgrid (Solar à Battery à Mains) On1Day/OnAlways ( Mains + Solar )	Auto (Solar à Mains à Battery) Offgrid (Solar à Battery à Mains) On1Day/OnAlways ( Mains + Solar )	Auto (Solar à Mains à Battery) Offgrid (Solar à Battery à Mains) On1Day/OnAlways ( Mains + Solar )	Auto (Solar à Mains à Battery) Offgrid (Solar à Battery à Mains) On1Day/OnAlways ( Mains + Solar )
Changing Modes	Mode and Select Switch to navigate through an heirarchical Menu	Mode and Select Switch to navigate through an heirarchical Menu	Press and Hold Mode Switch, Release to Select Mode Option	Press and Hold Mode Switch, Release to Select Mode Option	Press and Hold Mode Switch, Release to Select Mode Option
Weight	~4 Kgs	~4 Kgs	~3 Kgs	~3 Kgs	~2 Kgs
Cooling	2 Fans, PWM controlled based on Temperature	2 Fans, PWM controlled based on Temperature	1 Fans, PWM controlled based on Temperature	1 Fans, PWM controlled based on Temperature	1 Fans, PWM controlled based on Temperature
Battery Reverse polarity protection	Electronically protected	Electronically protected	Electronically protected	Electronically protected	Electronically protected
PV Reverse and Short circuit protection	Electronically protected	Electronically protected	Electronically protected	Electronically protected	Electronically protected
Over current protection protection	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout
Over temperature protection protection	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout	System shutdown, recovers with a timeout

From the blog post

Location Of Our
Company

ADDRESS

251/252 , 3rd Main,

3rd Cross Road,

3rd Phase, JP Nagar,

Bengaluru, Karnataka 560078

CONTACTS

Email: info@www.amberroot.com

Phone: +91 78993 96778

REhubs Provide the Ideal Way to Add Solar To Existing Inverters

Specifications