WATTSTUNDE® 40A 150V MPPT Solar Charge Controller WSL40.150 MPPT 24/48V

MPPT solar charge controller WSL 40.150 with LCD from WATTSTUNDE®

Effective and fast battery charging for motorhomes, caravans, boats and other self-sufficient solar systems!

A charge controller is the heart of every solar island system. It charges the battery in a controlled manner using solar energy.

The WSL 40.150 charge controller from the MPPT series was manufactured with all of our know-how to develop a cost-effective but powerful model . In particular, the commissioning and wide range of solar modules that are compatible with this charge controller make our WSL 40.150 a beginner-friendly product in the area of ​​large solar island systems.

Our solar charge controller offers you ultra-fast MPPT charging and can therefore increase the yield of your solar system. Especially when the sky is overcast and the light intensity is constantly changing, a fast MPPT controller improves the energy yield by up to 30% compared to PWM charge controllers.

LCD display

The WSL 40.150 from the MPPT series has a built-in LC display that gives you easy access to a wide range of information about your solar system. This makes it easy to read the battery charge level or load current without any accessories. Precise measurements allow you to keep an overview of your solar system. The energy flows are displayed in real time and a statistics function allows you to view the total solar yields over a longer period of time.

Temperature sensor – internal and external

The internal temperature sensor in the WSL 40.150 balances constant and float charge voltages based on the temperature. The included external temperature sensor can be easily connected to your WSL as required. The external sensor allows the charging voltage to be automatically adjusted depending on the ambient temperature.

Maximum yields thanks to intelligent MPPT technology

The WSL-MPPT series from WATTSTUNDE® works with the maximum power point tracking principle .
With MPPT technology, the controller determines the optimal operating point of the solar modules several times per second.
The WSL 40.150 can therefore transform the excess voltage of the solar modules into an increased charging current for the battery. This increase in charging current ensures shorter charging times and the best possible performance utilization of the solar system.

System voltage

The WSL 40.150 has automatic detection of the system voltage . It can be operated between 24 V or 48 V. There is also a day and night time control and the light insulation option.

Comprehensive electronic protection

To avoid problems when operating the charge controller, our device offers:
- Overheating protection and load reduction at high temperatures
- Protection against PV short circuit and PV reverse polarity
- PV reverse current protection
- automatic load shutdown in case of impending battery undervoltage (deep discharge protection)

Cooling by metal fins

The WSL 40.150 impresses with its solid metal housing with integrated cooling fins . The cooling back enables easy installation and is made of high-quality material according to industry standards.

Intelligent load shedding

The WSL charges the battery reliably and gently and protects it from dangerous deep discharge by automatically disconnecting its consumers with the help of intelligent load disconnection when the battery reaches a critical charge level.

Conclusion: Our WSL 40.150 is the all-rounder among charge controllers for large solar island systems.

Technical data WSL 40.150 MPPT