The Soltronic MPPT 7520 Solar Battery Charger Unit with MPP technology is a highly developed MPPT solar charger unit for photovoltaic systems and is used to charge batteries. The unit has an intelligent MPP algorithm maximising the energy generation of solar power generators. With an individually programmable digital output, a dangerous total discharge can be avoided. The MPPT 7520 is perfect for the application in mountain huts, holiday homes, motorhomes, and on boats. The charging process has been optimised to guarantee a long battery life and improved system performance. The robust casing made of steel and aluminium is protecting the charger unit well even in difficult mechanical environments.

The controller can easily be regulated by a pushbutton. All data can be collected on the large display. The separate digital output can be adjusted in an flexible way, and can also be used as a dimmer switch for the night light function.





Maximum Energy Output
High Effieciency of more than 97,5%
Excellent performance when solar radiation is low
Enables the application of solar modules with an idling performance of up to 75 Volts or serial connection of 75 V modules.

Lower System Costs
Almost as cheap as a Voltage Stabilizer, but with better performance
A great alternative for PV systems up to 600 Wp
By using thin film modules, or modules which could normally be used for network supply, more costs can be reduced at higher energy output.

Programmable Total Discharge Protection
Separate and individually programmable digital output to connect an external relay for load shedding.

Robust steel casing with a great cooling effect
To keep your controller working even in a high temperature environment, we included two cooling elements which will easily conduct surplus heat.

Extremely Reliable
Powerful electronics and modern software guarantee a high rate of reliability and long durability.

Easy to Program
Simple adjustment of the pushbuttons directly at the unit with the help of a large display. No further instruments required.

Reserve Energy
The innovative charging system of the MPP7520 guarantees longer reserve energy. The additional service tool for lead acid batteries avoids dangerous layered arrangement of acids.

Status Bar on the Display
The easily readable large LCD display informs you about controller and system data in an easy and quick way.

LCD Display Functions

• Battery Charge State via Bar Display
• Battery Voltage
• Charging Current
• Solar Generator Voltage
• Battery Temperature (external sensor)
• Cooling Element Temperature
• Various Error Messages
• Parameterization
• Service

Electrical Data

• Efficiency: 97,5%
• Nominal Voltage of Battery: 12 or 24V
• Maximum Charging Current: 20A
• Battery Voltage Range: 7-36V
• Max. PV Off-Load Voltage: 75V
• Typical Generator Output: 12V 300W
• 24V 600W
• Digital Output: 100mA
• Consumption of Auxiliaries: 27mA

Ambient Data

• Working Temperature: -20°C to +60°C
• Storage Temperature: -30°C to +70°C
• Humidity: 99% non-condensing

Protective Functions

• PV Input    Kurzschluss, Short, Polarity Reversal, Overload
• Reserve Battery Protection
• Module Input Battery Input
• Overvoltage
• PV-Generator
• Excess Temperature
• Reverse Current

Battery

• Types of Batteries: Lead Acid, AGM, Gel
• IUoU characteristic curve: Main Charging, Trickle Charging, Maintenance Mode
• Temperature Compensation: -3mV/°C / Cell (20°C Temperature)
• Temperature Range: -20°C to +60°C

Mechanical Data

• Measurements LxBxH : 180x180x50mm
• Weight: 2,1kg
• Connecting Terminals: 16mm² / 6AWG
• Casing: Aluminium / Steel

Options

• Ext. Temperature Sensor
• Various Power Relays

Other
CE-conform
RoHS-conform