Steca Charge Controllers

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A range of cost effective solar charge controllers for off-grid photovoltaic systems. Steca solar charge controllers control the entire energy flow ensuring optimal battery maintenance.

Includes:

  • 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
  • Five year warranty
  • Made in Germany/EU
Steca Charge Controllers Steca Premium Partner Wind & Sun 948

Steca Solsum F

Easy to use PWM charge controller ideal for small systems with up to 10A charge/load current.

  • Includes multifunction LED display to show battery status.
  • Automatic 12/24V battery voltage detection.
  • Current compensated load disconnection
  • Automatic load reconnection
  • Temperature compensation
  • Low self consumption of <4mA
  • Terminals take up to 4 sq mm cable

 

Steca Solsum F Solar PV Charge Controller Front
Steca Solsum F Solar PV Charge Controller Angle Steca Solsum F Solar PV Charge Controller Technical Drawing
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Product Code Description Retail Price
(ex VAT)
ST-SM6.6F Steca Solsum 6.6F charge controller 12/24V, 6A with LEDs £17.43
ST-SM8.8F Steca Solsum 8.8F charge controller 12/24V, 8A with LEDs £23.39
ST-SM10.10F Steca Solsum 10.10F charge controller 12/24V, 10A with LEDs £31.19

Steca Solarix PRS

Simple high performance PWM solar charge controllers with modern design and a convenient LED display.

  • Several LEDs in various colours give information on the battery‘s state of charge.
  • Automatic 12/24 V battery voltage detection
  • Current compensated load disconnection
  • Automatic load reconnection
  • Temperature compensation
  • Terminals take up to 16 sq mm cables
Steca Solarix PRS Solar PV Charge Controller Front
Steca Solarix PRS Solar PV Charge Controller Angle Steca Solarix PRS Solar PV Charge Controller Technical Drawing
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Product Code Description Retail Price
(ex VAT)
ST-SXPRS1515 Steca Solarix PRS charge controller 12/24V, 15A, with LEDs £44.82
ST-SXPRS2020 Steca Solarix PRS charge controller 12/24V, 20A, with LEDs £53.21

Steca Solarix MPPT

MPPT Maxi­mum Power Point Tracking solar charge controller designed to work with all established module technologies and optimised for solar systems with module voltages higher than the battery voltage.to ensure that the maximum available power of the solar array is available to the batteries. 

  • High efficiency maximum power point tracker
  • Wide input voltage range (up to 100 VDC)
  • LED display
  • Automatic 12/24V battery voltage detection
  • Load disconnection based upon SOC
  • Automatic load reconnection
  • Temperature compensation
  • Terminals take up to 16 sq mm cables
Steca Solarix MPPT Solar PV Charge Controller Front
Steca Solarix MPPT Solar PV Charge Controller Angle Steca Solarix MPPT Solar PV Charge Controller Front Technical Drawing
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Product Code Description Retail Price
(ex VAT)
ST-SXMPPT2010 Steca Solarix MPPT charge controller 12/24V,20A with LEDs £196.41

Steca PR

A range of PWM solar charge regulators rated from 10-30A, ideal for any small to medium size system which adapts automatically for use in either 12 or 24 V systems.  Includes automatic low voltage disconnection and a manual load switch.  Protection features include an automatically re-settable electronic fuse for maintenance free operation. Includes large self explanatory LCD display showing voltage, charge & discharge current. 

Built in Ah counter.  System settings are configurable by means of buttons on the front of the unit. Operation from - 10 to + 50°C. Terminals take up to 16 sq  mm cables. 

  • State of charge determination with Steca AtonIC (SOC)
  • Automatic detection of voltage
  • Graphical LCD display for operating parameters, fault messages
  • 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 equalisation charge
  • Simple menu-driven operation
  • Programming by buttons
  • Manual load switch
Steca PR 3030 Solar PV Charge Controller Front
Steca PR 3030 Solar PV Charge Controller Angle Steca PR 3030 Solar PV Charge Controller Technical Drawing
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Product Code Description Retail Price
(ex VAT)
ST-PR1010 Steca PR charge controller 12/24V, 10A with LCD display £65.77
ST-PR1515 Steca PR charge controller 12/24V, 15A with LCD display £80.73
ST-PR2020 Steca PR charge controller 12/24V, 20A with LCD display £93.57
ST-PR3030 Steca PR charge controller 12/24V, 30A with LCD display £119.25

Steca Solarix

PWM solar charge controllers using the latest charging technologies combined with state of charge determination to enable optimal battery charging. A large display informs the user about all operating modes with the aid of symbols. State of charge is shown as a level meter and data such as voltage, current and state of charge can be displayed digitally as figures on the display.

  • State of charge determination with Steca AtonIC (SOC)
  • Automatic 12/24V detection of battery voltage
  • PWM control
  • 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 equalisation charge
  • USB charge socket for smartphones and tablets
Steca Solarix Solar PV Charge Controller Front
Steca Solarix Solar PV Charge Controller Angle Steca Solarix Solar PV Charge Controller Technical Drawing
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Product Code Description Retail Price
(ex VAT)
ST-SX2525 Steca Solarix 12/24V,25A, with USB charger and LCD display £100.91

Steca Solarix 2020-x2

State-of-the-art dual battery PWM charge controller that is ideal for use in leisure applications such as boats and motor homes

  • Solar module input suitable 36-cell solar modules.
  • Both main battery and starter battery are charged simultaneously and continuously by the solar module.
  • 90 percent of the available power flows into the main battery while 10 percent of the power is retained to keep the auxiliary battery fully-charged.

Charging power split can be adapted using the optional Steca PA LCD1 remote display. The charge controller is equipped with a high-power load output fed by the main battery only. 

  • Two different battery types can be connected
  • 12 V or 24 V voltage can be combined for main and auxiliary battery
  • Extremely low self consumption (22mA)
  • Extensive programming and display options with optional graphical remote display 
  • Automatic 12/24V detection of battery voltage
  • Multistage charging technology
  • Current compensated load disconnection
  • Automatic load reconnection
  • Temperature compensation
  • USB charge socket for smartphones and tablets
Steca Solarix 2020 X2 Solar PV Dual Battery Charge Controller Front
Steca Solarix 2020 X2 Solar PV Dual Battery Charge Controller Angle Steca Solarix 2020 X2 Solar PV Dual Battery Charge Controller Technical Drawing
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Product Code Description Retail Price
(ex VAT)
ST-SX2020-X2 Steca dual battery controller 12/24V 20A with USB charger £119.25

Steca Solarix MPPT 3020 and 5020

These controllers use maximum power point tracking and are optimally suited for solar systems with module voltages higher than the battery voltage. In particular, they enable PV modules that are used for grid-connected systems to also be used off-grid.

Steca‘s efficient MPP tracking algorithm always provides the maximum usable power of the module, significantly increasing energy yield, especially in poor weather conditions (cloud cover, winter, diffused light).

The Steca Solarix MPPT charge controllers combine state-ofthe-art charging technology with high efficiency, professional battery care with numerous programming options, modern design, excellent protection functions and an intuitive LCD display with menu guidance.

Electronic protection functions

  • Overcharge protection
  • Deep discharge protection
  • Reverse polarity protection of module, load and battery
  • Automatic electronic fuse
  • Short circuit protection
  • Open circuit protection without battery
  • Reverse current protection at night
  • Overtemperature and overload protection
  • Load disconnection on battery overvoltage
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Product Code Description Retail Price
(ex VAT)
ST-SXMPPT3020 Steca Solarix MPPT controller 12/24V 30A charge 20A load LCD £177.66
ST-SXMPPT5020 Steca Solarix MPPT controller 12/24V 50A charge 20A load LCD £401.75

Steca Tarom

The Steca Tarom sets new standards in this power class. A graphic display informs the user about all important system data and enables configuration and adjustment of the controller to the specific requirements of the individual system for optimal control and battery protection.

Integrated data logger stores all important system data which can then be read by the minute via an open Steca UART interface. 
Two additional switching contacts can be freely configured as a timer, a night light function, to start generators or as surplus management. Up to six devices can be connected in parallel and communicate with one another via the StecaLink bus.

Versions for 12/24 or 48 V. Optional external temperature sensor.

  • Large graphical display
  • Extensively programmable
  • Optimal state of charge determination
  • Innovative, comprehensive data logger with energy meter
  • Best choice for system sizes up to 2,700 Wp
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Product Code Description Retail Price
(ex VAT)
ST-TRM4545 Steca Tarom charge controller 12/24V 45A charge 45A load LCD £249.98
ST-TRM4545-48 Steca Tarom charge controller 48V 45A charge 45 load LCD £276.76

Steca PA RC100 programming unit

The programming unit Steca PA RC100 allows to program Steca solar charge controllers. The values can be adjusted with the help of switches. After a restart of the charge controller the new settings can be activated by pressing the program-button on the Steca PA RC100. An LED will transfer the values to the controller.

Steca PA RC100 Programming Unit Angle
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Product Code Description Retail Price
(ex VAT)
ST-PARC100 Steca Remote programming unit £88.88

Steca Tarom MPPT

Sophisticated 60A 12/24/48V MPPT charge controllers with 180VDC maximum input voltage

  • Two independent maximum power point trackers (MPP trackers)
  • Two inputs (connected in parallel or used separately for two different module arrays)
  • Robust metal casing
  • Comprehensive data logging of energy values for up to 20 years
  • MicroSD slot for data logging of all minute values (6000-M only)
  • Voltage and current regulation
  • Temperature compensation
  • Monthly equalisation charge
  • Three configurable multifunctional contacts (6000-M only)
  • Adjustable cut-off voltages
  • Battery type: gel/liquid lead battery (for 6000-M also Li and NiCd batteries)
  • Integrated, automatic module switch
  • 36 V and 60 V batteries can be charged with special settings in expert menu level
  • Parallel connectable
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Product Code Description Retail Price
(ex VAT)
ST-TRM-MPPT6000S Steca Tarom 60A MPPT charge controller with disp. 12/24/48V £758.85
ST-TRM-MPPT6000M Steca Tarom 60A MPPT chg contr.with comms& display 12/24/48V £1,142.74

Steca PA LCD1 Remote Display

Remote graphical display for the Steca Solarix 2020-x2 solar charge controller. Energy flow is displayed as a graphic, making it intuitively understandable. Includes comprehensive data logger enabling full monitoring of the entire system. Virtually all charge controller parameters can be set and modified which allows the distribution of charge power between the two batteries to be adjusted. For the load output, all automatic time and battery voltage functions are fully programmable.

Includes a USB charge socket for smartphones and tablets.

  • Can only be used in conjunction with the Steca Solarix 2020-x2
  • Multifunction graphical LCD display with backlighting
  • for operating parameters, voltage, current, fault messages
  • Simple installation
  • Fully-fledged integrated data logger
  • Four freely programmable timers with week day function
  • Evening, night light and daylight functions
  • Generator manager
  • Surplus manager
  • Automatic shutdown when not in use for more than week
  • USB charge socket for smartphones and tablet
Steca PA LCD1 Remote Display For Steca Solarix 2020 X2 Front
Steca PA LCD1 Remote Display For Steca Solarix 2020 X2 Angle
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Product Code Description Retail Price
(ex VAT)
ST-PALCD1 Steca graphical rem. display for Solarix 2020-x2, 5m cable £168.87

Steca Temperature Sensor

All Steca solar charge controllers have an integrated temperature sensor that makes them capable of adjusting the charging to suit temperature conditions. However, if the battery is installed in a different room to the controller a n additional external temperature sensor should be used.

  • Suitable for use with Solarix, Solarix MPPT and PR series controillers.
  • Supplied with plug for connection to the charge controller and a ring eyelet for connection to battery terminal.
Steca PA TS10 | PA TS20IP10 | PA TS S External Temperature Sensor
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Product Code Description Retail Price
(ex VAT)
ST-PATS10 Steca Ext. temp sensor for PR, Solarix, Solarix MPPT, 2.8m £22.22