Offgridtec mppt pro-x 20a charge controller 12v/24v

The mppt pro-x solar charge controller 20a (mpn: 017375) from Offgridtec sets new standards for your solar supply. The latest generation controller from Offgridtec impresses with high efficiency and flexibility, as well as reliable performance, combined with comprehensive protection and simple monitoring options. The advanced mppt technology and ultra-fast tracking speeds ensure an impressive minimum efficiency of 99.5% for maximum yields. This makes the innovative high-end solar controller ideal for use in household systems, field monitoring, UPS, emergency power supply, telecommunications or lighting, as well as for use in mobile homes or on boats.

Highlights of the mppt pro-x 20a

• Highly developed mppt technology with 99.5 % minimum efficiency
• Max. dc/dc transfer efficiency of up to 98.2%, full load efficiency of up to 96.2%
• Advanced mppt control algorithm to minimize MPP loss rate and loss time
• Precise detection and tracking of the Multiple Peak Maximum Power Point
• Max. 20a charging current, suitable for 12v and 24v systems
• Supports lead-acid and modern lithium-ion batteries
• Alternatively also available with 10a, 30a and 40a charging current
• Battery temperature compensation function
• Automatic limitation of charging power and charging current
• Real-time energy statistics function
• Full load operation without capacity reduction in the operating temperature range
• overheating protection function, multiple load mode and extensive electronics protection
• RS-485 communication bus interface with 5VDC power supply and professional protection chip incl. Modbus communication protocol, overcurrent and short-circuit protection
• Protection class IP33
• Integrated LCD display

Reliable, flexible and safe

The Offgridtec mppt pro-x solar charge controller is a versatile powerhouse. It is compatible with lead-acid and lithium-ion batteries and enables local adjustment of the voltage parameters for bcv, fcv, lvd and lvr. The charging power and charging current limiting function and the automatic reduction of the charging power ensure stability, even with oversized PV modules or high temperatures. In addition, it ensures stable performance within the operating temperature range at full load without loss of capacity. The IP33 protection standard and the isolated RS485 design improve the reliability and safety of the controller. The multiple load mode and extensive electronic and overheating protection functions provide protection against damage to the solar controller and connected devices.

High quality and advanced

The solar charge controller of the pro-x series is equipped with high-quality st and IR components from renowned brands, which guarantees a long service life and high reliability. The 3-stage charging mode based on a digital control circuit effectively extends battery life, significantly increases system performance and offers comprehensive protection against system or installation errors that could cause damage to components. This leads to increased operational safety and a longer service life for the entire solar power supply system. In addition, the intuitive control via PC software or mobile apps enables simple remote monitoring and control of the system.

Ultra-fast maximum power point tracking

Especially under changing light conditions, such as overcast skies, an extremely fast mppt controller significantly increases the energy yield and ensures a minimum efficiency of 99.5%. With the optimized mppt control algorithm, the Offgridtec controllers from the pro-x series minimize the MPP loss rate as well as the MPP loss time and precisely track the maximum power point (Multiple Peaks Maximum Power Point) of the PV system. This guarantees the optimum use of solar energy under all conditions and increases the energy utilization ratio by 10-30 % compared to the PWM charging method.

Technical data

• System nominal voltage: 12/24vDC Auto
• Nominal charging current: 20a
• Nominal discharge current: 20a
• Battery voltage: 8 ~32V
• max. PV open-circuit voltage: 100V/92V
• MPP voltage range: ~72v / battery voltage +2V
• Nominal charging power: 260W/12v 520W/24v
• max. conversion efficiency: 98.3%
• Full load efficiency: 96.4%
• Self-consumption: ≤30mA(12v) ≤16mA(24v)
• Voltage drop in the discharge circuit: ≤0.23V
• RS485 interface: 5VDC/200mA (RJ45)
• Temperature compensation coefficient: -3mV/?/2V
• Grounding: standard negative earthing
• Connection: 6AWG(16mm²) recomm. Cable: 10AWG(6mm²)
• Dimensions: 217×158×56.5 mm
• Weight: 0.96 kg

Scope of delivery:

1× Offgridtec 1-01-017375 mppt pro-x 20a
1× operating instructions