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Steca PRS2020 Charge Controller

The simplicity and high performance of the Steca Solarix PRS solar charge controller make it particularly appealing. At the same time, it offers a modern design and a convenient display, all at an extremely attractive price.Several LEDs in various colours emulate a tank display, which gives information on the battery's state of charge. Here, Steca’s latest algorithms are employed, resulting in optimal battery maintenance.

The Solarix PRS charge controllers are equipped with an electronic fuse, thus making optimal protection possible. They operate on the serial principle, and separate the solar module from the battery in order to protect it against overcharging.For larger projects, the charge controllers can also be equipped with special functions: e.g. with night light function and selectable charging plateau and deep-discharge protection voltages

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Excl. Tax: R 1,284.21 Incl. Tax: R 1,464.00

Product Description


Product features:

Series controller
Automatic detection of voltage
Voltage and current regulation
PWM control
Multistage charging technology
Current compensated load disconnection
Automatic load reconnection
Temperature compensation
Common positive grounding or negative grounding on one terminal
Integrated self test
Monthly maintenance charge

Electronic protection functions:

Overcharge protection
Deep discharge protection
Reverse polarity protection of load, module 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
Overheating and overload protection
Battery overvoltage shutdown

Technical Specification

Characterisation of the operating performance

System voltage : 12V ( 24V )
Own consumtion : < 4mA

DC input side

Open circuit voltage solar module : < 47V
Module current : 20A

DC output side

Battery voltage : 9V ... 17V ( 17.1V ... 34V )
Load Current : 20A
End of charge voltage : 13.9V ( 27.8V )
Boost charge voltage : 14.4V ( 28.8V )
Equalisation charge : 14.7V
Reconnection voltage ( LVR ) : 12.4V ... 12.7 V ( 24.8V ... 25.4V )
Deep discharge protection ( LVD) : 11.2V ... 11.6V ( 22.4V ... 23.2V )

Operating conditions

Ambient temperature : -25 degrees celcius .... + 50 degrees celcius

Fitting and construction

Terminal (fine / single wire) : 16 mm2 / 25 mm2 - AWG 6 / 4
Degree of protection : IP 32
Dimensions (X x Y x Z) : 187 x 96 x 45 mm
Weight approx. : 345 g

Please note that stock availability is subject to prior sales. Prices exclude delivery.

Additional Information

Additional Information

Disclaimer Please note that stock availability is subject to prior sales. Prices exclude delivery. The image serves as an example of what the product looks like and may differ slightly in appearance.
Guarantee/ Warranty 12 month product warranty
Charge Controller Type PWM
Charge Controller Amps 20 Amps
Maximum Input Voltage Open Circuit <47Vdc
Output Voltage 12Vdc, 24Vdc
Product Dimensions 18.7 x 9.6 x 4.5cm
Weight 0.35 Kg


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