Steca Solsum 0606, 0808, 1010 solar charge controllers


The Steca Solsum continues the huge success of one of the most used SHS controllers. With a power range of up to 10 A at automatically recognized 12 V or 24 V it fits to a system sizes of maximum 240 W.

Full circuit board protection with LED display for simple recognition of battery status. Various connections make it possible to connect easily to solar panels, battery and load. The Steca Solsum F works on PWM as a low loss series controller.

Product features

  • Serial topology with MOSFETs
  • Automatic detection of voltage
  • Voltage regulation
  • PWM control
  • Multistage charging technology
  • Current compensated load disconnection
  • Automatic load reconnection
  • Temperature compensation
  • Negative earthing of one or positive earthing of several terminals possible
  • Monthly equalisation charge

Electronic protection functions

  • Overcharge protection
  • Deep discharge protection
  • Reverse polarity protection of module (≤36 V), 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


  • Multifunction LED display
  • Multi-coloured LED4 LEDs show
  • operating states
  • for operation, state of charge, fault messages


  • Evening or night light function pre-set in the factory or adjustable via Steca PA RC 100
  • Parameterisation of function values via Steca PA RC 100


  • Compliant with European Standards (CE)
  • RoHS compliant
  • Made in EU
  • Manufactured according to ISO 9001 and ISO 14001


  • Steca PA RC100

Technical data

Modells 0606 (6 A) 0808 (8 A) 1010 (10 A)
System voltage [V] 12 V (24 V)
Open circuit voltage solar module (at minimum operating temperature) [V] 47 V
Module current [A] 6 A 8 A 10 A
End-of-charge voltage 13,9 V (27,8 V)
Boost charge voltage [V]* 14,4 V (28,8 V)
Reconnection voltage (SOC / LVR) * > 50% / 12,4 V … 12,7 V
Deep discharge protection (SOC / LVD) * > < 30% / 11,2 V … 11,6 V
Ambient temperature [°C] – 25 °C … +50 °C
Degree of protection [°C] IP 30 / NEMA tipo 1

* Solar charge controller is protected against reverse battery polarity together with
polarity protected loads. Reverse battery polarity combined with short circuited or
polarised load could cause damages in load or regulator
* The reverse-polarity protection of the solar module in a 24 V system is only provided
up to an open-circuit module voltage of 36 V.
* Lower value for nominal current, higher value for lowest current