STECA Solarix 4040 PWM – 40A-12/24V Charge Controller

Solar charge controllers Steca Solarix 2525 and 4040 are newly developed products based on our internationally renowned controller family Steca PR. With increased module and load current, the controllers are now also suitable for even larger systems. The devices also feature an integrated USB charging port for charging smartphones and tablets.

Use of the latest charging technologies combined with state of charge determination enables optimal battery maintenance and module power monitoring. A large display informs the user about all operating modes with the aid of symbols. The state of charge is represented visually as a level meter. Data such as voltage, current, and state of charge can also be displayed digitally as figures on the display. In addition, the controller has an energy meter which can be reset by the user.


Steca Solarix – 4040 PWM Charge Controller

Product features
∙ Hybrid controller
∙ State of charge determination with Steca AtonIC (SOC)
∙ Automatic detection of voltage
∙ PWM control
∙ Multistage charging technology
∙ Load disconnection depending on SOC
∙ Automatic load reconnection
∙ Temperature compensation
∙ Negative earthing of one or positive earthing of several terminals possible
∙ Integrated data logger (energy meter)
∙ Evening, night light and daylight functions
· Integrated self-test

∙ Monthly maintenance charge
· USB charge socket for smartphone and tablets

Electronic protection functions
· Overcharge protection
Deep discharge protection
Reverse polarity protection of module, load, and battery
· Automatic electronic fuse
· Short circuit protection of load and module
Overvoltage protection at module input
· Open circuit protection without battery
Reverse current protection at night
Overtemperature and overload protection
· Load disconnection on battery overvoltage

Graphical LCD display for operating parameter, fault messages, self-test.

· Simple menu-driven operation
· Programming by buttons
· Manual load switch
Optional – Alarm contact

Product DataSheet: Steca Solarix 4040 PWM 12-24V Datasheet