The Loads are connected to the DC Load controllers – which provide functions like Dusk to Dawn, Low Voltage Disconnect and Short Circuit protection.
Solar Charge controllers with Load controllers are available for small Street Light applications. When the Current and Voltage requirement becomes higher (e.g 48V and 30A), Electro-Magnetic relays become expensive (DC relay) or unavailable. REhub DC’s have high efficiency Mosfet based switching to control the Loads.
 | |  | |  |  |
|
|---|---|---|---|---|---|---|
| [1] | Battery Voltage detection Auto detects 12/24V | Battery Voltage detection Auto detects 12/24V | Battery Voltage detection Auto detects 12/24V | Battery Voltage detection Auto detects 12/24V | Battery Voltage detection 36V | Battery Voltage detection 48V |
| [2] | Battery System Voltage 12Vnom | Battery System Voltage 24Vnom | Battery System Voltage 12Vnom | Battery System Voltage 24Vnom | Battery System Voltage 36Vnom | Battery System Voltage 48Vnom |
| [3] | Recommended Solar module STC Wp 500W | Recommended Solar module STC Wp 1000W | Recommended Solar module STC Wp 750W | Recommended Solar module STC Wp 1500W | Recommended Solar module STC Wp 1500W | Recommended Solar module STC Wp 2500W |
| [4] | Output Current – Continuous , Max 25A | Output Current – Continuous , Max 25A | Output Current – Continuous , Max 50A | Output Current – Continuous , Max 50A | Output Current – Continuous , Max 35A | Output Current – Continuous , Max 40A |
| [5] | PV Open Circuit Voltage (VOC) 110V | PV Open Circuit Voltage (VOC) 110V | PV Open Circuit Voltage (VOC) 110V | PV Open Circuit Voltage (VOC) 110V | PV Open Circuit Voltage (VOC) 110V | PV Open Circuit Voltage (VOC) 160V |
| [6] | PV MPPT Voltage range > Battery Voltage to VoC limit of charger | PV MPPT Voltage range > Battery Voltage to VoC limit of charger | PV MPPT Voltage range > Battery Voltage to VoC limit of charger | PV MPPT Voltage range > Battery Voltage to VoC limit of charger | PV MPPT Voltage range > Battery Voltage to VoC limit of charger | PV MPPT Voltage range > Battery Voltage to VoC limit of charger |
| [7] | Power Conversion Efficiency (typical) 91% typ | Power Conversion Efficiency (typical) 95% typ | Power Conversion Efficiency (typical) 91% typ | Power Conversion Efficiency (typical) 95% typ | Power Conversion Efficiency (typical) 95% typ | Power Conversion Efficiency (typical) 95% typ |
| [8] | Full load output voltage Same as battery voltage | Full load output voltage Same as battery voltage | Full load output voltage Same as battery voltage | Full load output voltage Same as battery voltage | Full load output voltage Same as battery voltage | Full load output voltage Same as battery voltage |
| [9] | Float Mode Charge Voltage (Configurable)1 13.5V | Float Mode Charge Voltage (Configurable)1 27V | Float Mode Charge Voltage (Configurable)1 13.5V | Float Mode Charge Voltage (Configurable)1 27V | Float Mode Charge Voltage (Configurable)1 40.5V | Float Mode Charge Voltage (Configurable)1 54V |
| [10] | Bulk Mode Charge Voltage 14.4V | Bulk Mode Charge Voltage 28.8V | Bulk Mode Charge Voltage 14.4V | Bulk Mode Charge Voltage 28.8V | Bulk Mode Charge Voltage 43.2V | Bulk Mode Charge Voltage 57.6V |
| [11] | Battery Charging states 3 Stage for Lead acid. Configurable for other chemistries like LiFePo4 | Battery Charging states 3 Stage for Lead acid. Configurable for other chemistries like LiFePo4 | Battery Charging states 3 Stage for Lead acid. Configurable for other chemistries like LiFePo4 | Battery Charging states 3 Stage for Lead acid. Configurable for other chemistries like LiFePo4 | Battery Charging states 3 Stage for Lead acid. Configurable for other chemistries like LiFePo4 | Battery Charging states 3 Stage for Lead acid. Configurable for other chemistries like LiFePo4 |
| [12] | Ambient temperature range -10°C to 60°C | Ambient temperature range -10°C to 60°C | Ambient temperature range -10°C to 60°C | Ambient temperature range -10°C to 60°C | Ambient temperature range -10°C to 60°C | Ambient temperature range -10°C to 60°C |
| [13] | Ports Solar +Ve, Solar -Ve. Battery +Ve, Battery -Ve, Load +Ve, Load -Ve, Data Port2 | Ports Solar +Ve, Solar -Ve. Battery +Ve, Battery -Ve, Load +Ve, Load -Ve, Data Port3 | Ports Solar +Ve, Solar -Ve. Battery +Ve, Battery -Ve, Load +Ve, Load -Ve, Data Port3 | Ports Solar +Ve, Solar -Ve. Battery +Ve, Battery -Ve, Load +Ve, Load -Ve, Data Port4 | Ports Solar +Ve, Solar -Ve. Battery +Ve, Battery -Ve, Load +Ve, Load -Ve, Data Port5 | Ports Solar +Ve, Solar -Ve. Battery +Ve, Battery -Ve, Load +Ve, Load -Ve, Data Port6 |
| [14] | Display 16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV | Display 16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV | Display 16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV | Display 16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV | Display 16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV | Display 16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV |
| [15] | Dimension 200X120X95mm | Dimension 200X120X95mm | Dimension 135X270X115mm | Dimension 135X270X115mm | Dimension 135X270X115mm | Dimension 307X185X107mm |
| [16] | Weight 2 Kgs | Weight 2 Kgs | Weight 3 Kgs | Weight 3 Kgs | Weight 3 Kgs | Weight 4 Kgs |
| [17] | Protection Electronically protected | Protection Electronically protected | Protection Electronically protected | Protection Electronically protected | Protection Electronically protected | Protection Electronically protected |
| [18] | PV Reverse and Short circuit Protection Electronically protected | PV Reverse and Short circuit Protection Electronically protected | PV Reverse and Short circuit Protection Electronically protected | PV Reverse and Short circuit Protection Electronically protected | PV Reverse and Short circuit Protection Electronically protected | PV Reverse and Short circuit Protection Electronically protected |
| [19] | Over current Protection System shutdown, recovers with a timeout | Over current Protection System shutdown, recovers with a timeout | Over current Protection System shutdown, recovers with a timeout | Over current Protection System shutdown, recovers with a timeout | Over current Protection System shutdown, recovers with a timeout | Over current Protection System shutdown, recovers with a timeout |
| [20] | Over temperature Protection System shutdown, recovers with a timeout | Over temperature Protection System shutdown, recovers with a timeout | Over temperature Protection System shutdown, recovers with a timeout | Over temperature Protection System shutdown, recovers with a timeout | Over temperature Protection System shutdown, recovers with a timeout | Over temperature Protection System shutdown, recovers with a timeout |
| | |
|---|---|---|
| Battery System Voltage : 12/24V – Auto detect | Battery System Voltage : 12/24V – Auto detect | Battery System Voltage : 36V /48V – must be selected at first time start |
| Rated SOLAR Output Current : 25A | Rated SOLAR Output Current : 50A | Rated DC Load Current : 35A |
| Rated DC Load Current : 15A | Rated DC Load Current : 30A | Rated DC Load Current : 30A |
| Typical Array Size : 1. 100 – 500Wp for 12V batt 2. 300 – 1000Wp for 24V batt | Typical Array Size : 1.300 – 750Wp for 12V batt 2. 300 – 1500Wp for 24V batt | 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. Three 72 cell panels in series and multiple such strings in series-parallel arrangement upto 160Voc |
| DC Load controller functions : 1. Loads are provided Battery Voltage 2. Low Voltage Disconnect of Loads from Batteries 3 Usage modes ( Dusk to Dawn control of Loads or Always on control of Loads) 4. Short circuit protection | DC Load controller functions : 1. Low Voltage Disconnect of Loads from Batteries 2. Usage modes ( Dusk to Dawn control of Loads or Always on control of Loads) 3. Short circuit protection | DC Load controller functions : 1. Low Voltage Disconnect of Loads from Batteries 2. Usage modes ( Dusk to Dawn control of Loads or Always on control of Loads) 3. Short circuit protection |
Key Specifications
Battery System Voltage : 12/24V – Auto detect
Rated SOLAR Output Current : 25A
Rated DC Load Current : 15A
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
DC Load controller functions :
Loads are provided Battery Voltage
Low Voltage Disconnect of Loads from Batteries
Usage modes ( Dusk to Dawn control of Loads or Always on control of Loads)
Short circuit protection
User Manual
Key Specifications
Battery System Voltage : 12/24V – Auto detect
Rated SOLAR Output Current : 40A
Rated DC Load Current : 30A
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
DC Load controller functions :
Low Voltage Disconnect of Loads from Batteries
Usage modes ( Dusk to Dawn control of Loads or Always on control of Loads)
Short circuit protection
Specifications
User Manual
Key Specifications
Battery System Voltage : 36V /48V – must be selected at first time start
Rated SOLAR Output Current : 40A
Rated DC Load Current : 30A
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
DC Load controller functions :
Low Voltage Disconnect of Loads from Batteries
Usage modes ( Dusk to Dawn control of Loads or Always on control of Loads)
Short circuit protection
Specifications
User Manual
Going completely Direct Current (DC) for loads makes it far more efficient compared to using Loads running on Alternating Current (AC) specially when the source of power is Solar. Most of our appliances such as LED lamps, TV ultimately run on DC. Further most of electronic devices and even home appliance motors can be DC. With Solar Photo Voltaic as a source of Power – in a DC system the following Voltage conversions happen :
Solar PV Panel at Maximum Power Point Voltage –> Battery Bus Voltage –> DC Load . Alternately and additional step of DC -DC conversion to Load Voltage if the Load Voltage is different from Battery Voltage or the Load requires a regulated Voltage output.
Whereas with AC loads the following Voltage conversions happen :
Solar PV Panel at Maximum Power Point Voltage –> Battery Bus Voltage –> DC -AC inversion to 230VAC –> 230VAC to DC Load Voltage.
There is a loss of 10% to 20% when DC power is converted to AC power. and a loss of 5% to 20% when AC power is converted to DC power. Going all DC is thus quite advantageous, but practical issues around the availability of home appliances that work on DC, lack of standards around DC bus Voltage, home wiring etc. prevent adoption of DC for homes.
Yet, many of Amberroot’s customers have adopted Solar DC for lighting and DC fans, and a few appliances in their homes, using Amberroot’s REhub MPPT DC to efficiently extract power from Solar panels and power the DC loads safety from the Batteries.
Others have used REhub MPPT DC in innovative applications including DC light masts deployed in Airports, Road construction etc.
REhub DCs are also being used in Industrial applications include powering Flowmeters in water supply boards, powering earthquake monitoring equipment etc.
These applications require regulated DC output – with sensitive equipment requiring Voltages within a narrow band . Do write to us for solutions for your DC load requirements !
Load controllers protect the batteries and system from Load Short circuit.
The Load controller detects the rising current under short circuit conditions and disconnects the Loads from the batteries. After a suitable timeout (Factory configurable) the connection is re-attempted – and if the short circuit conditions persist, the Loads are disconnected again. This rapid disconnection protects the circuits from high currents, and potential burning out of the wires etc. Because the Load disconnection is using Mosfets, the action is very fast and self-correcting once the short circuit conditions are resolved.
The Load Controller protects the batteries from deep discharge
The Load controllers disconnect the Loads from the batteries at a pre-set (factory configurable) Voltage.
This protects the battery from deep discharge. The Load controllers automatically re-connect the Loads at a Pre-set reconnect Voltage.
Some Loads require regulated Voltage input and cannot directly use the Battery Voltage range. Regulated output options are available with buck boost Load controllers that limit the Voltage to the Loads within a tight tolerance. ( E.g 12V +/- 5% from a 12V battery or 24V +/- 5% from a 24V battery) .
In Dusk to Dawn mode REhub DC uses Solar Voltage to determine dusk or daylight availability. This Voltage is Field Select-able from REhub Menu and it is used to Switch ON and Switch OFF the Loads. For example, if the Voltage selected is say 30V and the Voltage from the Solar panel drops below 30V (Indicating Dusk), the Load is automatically switched on after a Time Out.
When the Voltage from the Solar Panels is greater than the Battery Voltage, the Load is switched off Automatically after a time out.
Application example:
Light Masts: Using Solar energy to charge the batteries through the day and using the stored Solar energy to power the Lamps in the night in lieu of Diesel generators.
In Always ON mode, the Power is available to the Loads unless there is a Load Short circuit or conditions for Low Voltage Disconnect.
Application: Running DC loads that are expected to run even in daytime with Solar energy – DC light, DC air conditioners, DC fans etc.
Select Solar charger based on Load requirements and battery requirements.
For example, if the Solar PV sizing is 600Wp and battery size is 12V, you will need REhub MPPT 40A 12/24V charger.
If the Battery Voltage is however 24V , and the Panel sizing is still 600Wp, then REhub MPPT ECO 25A 12/24V is sufficient.
Select the Load controller based on Load current requirements
Let us say the Load current is 10A . In this case if the Solar charger requirement is REhub MPPT 40A 12/24V – then the option is only REhub MPPT 40A 12/24V paired with 30A Load controller.
If the Loads need regulated Voltage – DC regulated Load controller is required.
Contact us for the selection of Regulated Load controller. Based on the Battery Voltage (Input to the Load controller) and the Output Voltage (which is the input to the Load ) , a Buck-boost regulator or a buck regulator or a boost regulator is required.
The Load controller are available paired with different REhub MPPT chargers. When done so the MPPT chargers can be used to run DC loads with Solar energy. The Mode of operation depends on the application and is a factory setting.
In Dusk to Dawn mode REhub DC uses Solar Voltage (This Voltage is Field Selectable from REhub Menu) to Switch ON and Switch OFF the Loads. For example, if the Voltage selected is say 30V and the Voltage from the Solar panel drops below 30V (Indicating Dusk) , the Load is automatically switched on after a Time Out.
When the Voltage from the Solar Panels is greater than the Battery Voltage, the Load is switched off Automatically after a time out.
Application example:
Light Masts: Using Solar energy to charge the batteries through the day and using the stored Solar energy to power the Lamps in the night in lieu of Diesel generators.
In Always ON mode, the Power is available to the Loads unless there is a Load Short circuit or conditions
for Low Voltage Disconnect.
Application:
Running DC loads that are expected to run even in daytime with Solar energy.
| | | | | |
|
|---|---|---|---|---|---|---|
| [1] | Battery Voltage detection Auto detects 12/24V | Battery Voltage detection Auto detects 12/24V | Battery Voltage detection Auto detects 12/24V | Battery Voltage detection Auto detects 12/24V | Battery Voltage detection 36V | Battery Voltage detection 48V |
| [2] | Battery System Voltage 12Vnom | Battery System Voltage 24Vnom | Battery System Voltage 12Vnom | Battery System Voltage 24Vnom | Battery System Voltage 36Vnom | Battery System Voltage 48Vnom |
| [3] | Recommended Solar module STC Wp 500W | Recommended Solar module STC Wp 1000W | Recommended Solar module STC Wp 750W | Recommended Solar module STC Wp 1500W | Recommended Solar module STC Wp 1500W | Recommended Solar module STC Wp 2500W |
| [4] | Output Current – Continuous , Max 25A | Output Current – Continuous , Max 25A | Output Current – Continuous , Max 50A | Output Current – Continuous , Max 50A | Output Current – Continuous , Max 35A | Output Current – Continuous , Max 40A |
| [5] | PV Open Circuit Voltage (VOC) 110V | PV Open Circuit Voltage (VOC) 110V | PV Open Circuit Voltage (VOC) 110V | PV Open Circuit Voltage (VOC) 110V | PV Open Circuit Voltage (VOC) 110V | PV Open Circuit Voltage (VOC) 160V |
| [6] | PV MPPT Voltage range > Battery Voltage to VoC limit of charger | PV MPPT Voltage range > Battery Voltage to VoC limit of charger | PV MPPT Voltage range > Battery Voltage to VoC limit of charger | PV MPPT Voltage range > Battery Voltage to VoC limit of charger | PV MPPT Voltage range > Battery Voltage to VoC limit of charger | PV MPPT Voltage range > Battery Voltage to VoC limit of charger |
| [7] | Power Conversion Efficiency (typical) 91% typ | Power Conversion Efficiency (typical) 95% typ | Power Conversion Efficiency (typical) 91% typ | Power Conversion Efficiency (typical) 95% typ | Power Conversion Efficiency (typical) 95% typ | Power Conversion Efficiency (typical) 95% typ |
| [8] | Full load output voltage Same as battery voltage | Full load output voltage Same as battery voltage | Full load output voltage Same as battery voltage | Full load output voltage Same as battery voltage | Full load output voltage Same as battery voltage | Full load output voltage Same as battery voltage |
| [9] | Float Mode Charge Voltage (Configurable)1 13.5V | Float Mode Charge Voltage (Configurable)1 27V | Float Mode Charge Voltage (Configurable)1 13.5V | Float Mode Charge Voltage (Configurable)1 27V | Float Mode Charge Voltage (Configurable)1 40.5V | Float Mode Charge Voltage (Configurable)1 54V |
| [10] | Bulk Mode Charge Voltage 14.4V | Bulk Mode Charge Voltage 28.8V | Bulk Mode Charge Voltage 14.4V | Bulk Mode Charge Voltage 28.8V | Bulk Mode Charge Voltage 43.2V | Bulk Mode Charge Voltage 57.6V |
| [11] | Battery Charging states 3 Stage for Lead acid. Configurable for other chemistries like LiFePo4 | Battery Charging states 3 Stage for Lead acid. Configurable for other chemistries like LiFePo4 | Battery Charging states 3 Stage for Lead acid. Configurable for other chemistries like LiFePo4 | Battery Charging states 3 Stage for Lead acid. Configurable for other chemistries like LiFePo4 | Battery Charging states 3 Stage for Lead acid. Configurable for other chemistries like LiFePo4 | Battery Charging states 3 Stage for Lead acid. Configurable for other chemistries like LiFePo4 |
| [12] | Ambient temperature range -10°C to 60°C | Ambient temperature range -10°C to 60°C | Ambient temperature range -10°C to 60°C | Ambient temperature range -10°C to 60°C | Ambient temperature range -10°C to 60°C | Ambient temperature range -10°C to 60°C |
| [13] | Ports Solar +Ve, Solar -Ve. Battery +Ve, Battery -Ve, Load +Ve, Load -Ve, Data Port2 | Ports Solar +Ve, Solar -Ve. Battery +Ve, Battery -Ve, Load +Ve, Load -Ve, Data Port3 | Ports Solar +Ve, Solar -Ve. Battery +Ve, Battery -Ve, Load +Ve, Load -Ve, Data Port3 | Ports Solar +Ve, Solar -Ve. Battery +Ve, Battery -Ve, Load +Ve, Load -Ve, Data Port4 | Ports Solar +Ve, Solar -Ve. Battery +Ve, Battery -Ve, Load +Ve, Load -Ve, Data Port5 | Ports Solar +Ve, Solar -Ve. Battery +Ve, Battery -Ve, Load +Ve, Load -Ve, Data Port6 |
| [14] | Display 16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV | Display 16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV | Display 16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV | Display 16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV | Display 16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV | Display 16 X2 Backlit character LCD to display system state, Instantaneous Power and cumulative energy generated from Solar PV |
| [15] | Dimension 200X120X95mm | Dimension 200X120X95mm | Dimension 135X270X115mm | Dimension 135X270X115mm | Dimension 135X270X115mm | Dimension 307X185X107mm |
| [16] | Weight 2 Kgs | Weight 2 Kgs | Weight 3 Kgs | Weight 3 Kgs | Weight 3 Kgs | Weight 4 Kgs |
| [17] | Protection Electronically protected | Protection Electronically protected | Protection Electronically protected | Protection Electronically protected | Protection Electronically protected | Protection Electronically protected |
| [18] | PV Reverse and Short circuit Protection Electronically protected | PV Reverse and Short circuit Protection Electronically protected | PV Reverse and Short circuit Protection Electronically protected | PV Reverse and Short circuit Protection Electronically protected | PV Reverse and Short circuit Protection Electronically protected | PV Reverse and Short circuit Protection Electronically protected |
| [19] | Over current Protection System shutdown, recovers with a timeout | Over current Protection System shutdown, recovers with a timeout | Over current Protection System shutdown, recovers with a timeout | Over current Protection System shutdown, recovers with a timeout | Over current Protection System shutdown, recovers with a timeout | Over current Protection System shutdown, recovers with a timeout |
| [20] | Over temperature Protection System shutdown, recovers with a timeout | Over temperature Protection System shutdown, recovers with a timeout | Over temperature Protection System shutdown, recovers with a timeout | Over temperature Protection System shutdown, recovers with a timeout | Over temperature Protection System shutdown, recovers with a timeout | Over temperature Protection System shutdown, recovers with a timeout |
15A | 30A |
||
|---|---|---|---|
| 1 | MOSFET Based [Solid State Switching] | MOSFET Based [Solid State Switching] | |
| 2 | 15A | 30A | |
| 3 | 110% of rated Load Current for small duration | 110% of rated Load Current for small duration | |
| 4 | Zero | Zero | |
| 5 | Same as Battery Voltage | Same as Battery Voltage | |
| 6 | Load Current and Voltage. Shown in the LCD display of the paired Solar Charger | Load Current and Voltage. Shown in the LCD display of the paired Solar Charger | |
| 7 | Controlled from the Paired Solar charger | Controlled from the Paired Solar charger | |
| 8 | Load Always ON Mode. Dusk to Dawn Mode. | Load Always ON Mode. Dusk to Dawn Mode. |
|
| 9 | Disconnects Load from Batteries at pre-set Voltage of battery: Voltage value is factory configurable. Default Value is 11.5V. (For 12Vnom. Multiply by 2 for 24V, 3 for 36V and 4 for 48V) | Disconnects Load from Batteries at pre-set Voltage of battery: Voltage value is factory configurable. Default Value is 11.5V. (For 12Vnom. Multiply by 2 for 24V, 3 for 36V and 4 for 48V) | |
| 10 | Load Reconnect Voltage is factory configurable. Default value is 12V. (For 12Vnom. Multiply by 2 for 24V, 3 for 36V and 4 for 48V) | Load Reconnect Voltage is factory configurable. Default value is 12V. (For 12Vnom. Multiply by 2 for 24V, 3 for 36V and 4 for 48V) | |
| 11 | Disconnects Load from Batteries and does reattempt after a time out | Disconnects Load from Batteries and does reattempt after a time out | |
| 12 | Fan cooled with FAN from Solar charger | Fan cooled with FAN from Solar charger | |
| 13 | Load +Ve, Load -Ve | Load +Ve, Load -Ve |
| [1] | Battery Voltage range | 12Vnom. 10V to 15V | 24Vnom. 20V to 30V |
| [2] | Nominal voltage | 12V +/- 5% 50ppm/deg C | 24V +/- 3% 50ppm/deg C |
| [3] | Continuous current | 15A | 15A |
| [4] | Peak Current | 20A, 10 Seconds | 20A, 10 Seconds |
| [5] | Ripple voltage | 200mVp-p max with steady load | 200mVp-p max with steady load |
| [6] | Short circuit protection | Protected | Protected |
| [7] | Efficiency | > 87% | > 87% |
| [8] | Low voltage cutoff | 11V (Configurable) | 21V (Configurable) |
Still have question?
Yes, the REhub DC MPPT solar charge controller is equipped with DC load controllers that are specifically designed to protect the batteries from overloading and short circuits. In the event of an overload or short circuit on the load side, the DC load controller is designed to cut off power to the load, thereby preventing any damage to the battery.
Yes, the REhub DC solar charge controller can be used for such applications. It supports Dusk to Dawn switching, allowing the loads to be switched on automatically during low light conditions and switched off during daylight hours. This makes it a suitable choice for high curren streetlight and lightmast applications where automatic control is required.
REhub DC solar charge controllers by default are manufactured without USB output but some specially customized REhub chargers have USB charging output. Contact us for more details
Yes, the REhub solar charger supports running AC loads from the battery through an inverter. However, there won’t be any AC input terminals in the REhub itself, and the mains input to the inverter cannot be controlled by the REhub.
The REhub DC solar MPPT controller is equipped with a low voltage disconnect (LVD) function, which helps prevent over-discharging of the battery and ensures its safety. When the battery voltage reaches a predetermined set value for discharging, the REhub DC cuts off the power supply to the load, keeping it off until the batteries are charged again and the battery voltage rises up to the load reconnect voltage. This ensures that the battery is not over-discharged, protecting it from damage and prolonging its lifespan.
The fuse in the REhub DC solar MPPT charger provides additional protection against accidental polarity reversal during the installation process. It acts as a safety measure by preventing any damage to the charger or connected devices in case of a short circuit or overload.
