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Steca Solsum 6A Charge Controller (SOLSUM6.6F)

£22.75 inc VAT

Steca Solsum 6.6F 12/24v 6A Charge Controller - SOLSUM6.6F

The 6 Amp Solsum is one of the most popular charge controllers available for small solar systems. Depending on battery voltage (see below), it will prevent solar panels of 30-60 watts from overcharging your battery.

The Solsum 6.6F charge controller is highly featured with automatic voltage regulation and battery gassing functions, temperature compensation, reverse polarity protection and a multi-color LED that indicates the battery voltage. The controller uses Pulse Width Modulation (PWM) for optimum battery charging and provides reliable protection for both 12v and 24v systems. The circuit board is completely electronically protected and with the LED user interface it is easy to check the battery state of charge at any time. The large terminals guarantee a simple connection of solar panels, battery and load.

Features & Benefits

  • Suitable for solar panels up to 72 Watts at 12 Volts, or 144 Watts at 24 Volts with auto switching.
  • Automatic selection of voltage (12 V / 24 V).
  • Pulse Width Modulation (PWM) series battery charging.
  • Temperature compensation and gassing regulation allows a more effective use of the battery capacity.
  • Fused fault protection.
  • Automatic load reconnection.
  • Built-in status LED indicates battery voltage.
  • Positive grounding, or negative grounding on one terminal.
  • Reduces system maintenance.
  • Easily installed.


Nominal System Voltage: 12 / 24v DC (automatic system voltage recognition)
Maximum Module Input, open circuit voltage: <47 volts
Maximum Module Input, short circuit current: 6 amps
Maximum Load, output current: 6 amps
Low Voltage Disconnect (LVD): Yes
Maximum Self Consumption: 4mA
End of Charge Voltage (float): 13.9 V / (27.8 V)
Boost Charge Voltage: 14.4 V/ (28.8 V)
Reconnection Setpoint (LVR): 12.6 V / (25.2 V)
Deep Discharge Protection (LVD): 11.1 V / (22.2 V)
Ambient Temperature Allowed: -25 °C...+50 °C
Terminal Size (fine / single wire): 4 mm² / 6 mm²
Enclosure Protection Class: IP 32
Weight: 150g
Dimensions L x Wx H: 145 x 100 x 30 mm
Warranty: 1 year

Delivery Charges

• Free Delivery 2-3 day service.
• Next Day Delivery - £4.95. Order placed before 2pm for next day service.
• Saturday Delivery - £14.95 Order placed before 2pm for Saturday delivery.
• Next Day orders placed after 2pm will be shipped the following day on a next day service.
• Next Day orders placed on a Friday before 2pm will be delivered on the following Monday.

Delivery costs outside of the UK are quoted in your shopping cart and differs depending on the delivery address.

Delivery Information

All goods are sold subject to availability. Your shopping basket displays the goods you have purchased and an indication of the delivery timescale. We will notify you if your goods are not able to be despatched within this timescale. Where goods are temporarily out of stock we will contact you so that you may choose between a refund on the item, having it shipped when it is back in stock or selecting an alternative product.

The delivery costs are shown depending on the shipping destination and the delivery service selected. Any delivery times quoted are estimates, based on availability and normal delivery time, in working days. Additional time should be allowed where payment is made by cheque, as we will not despatch goods until the cheque has cleared.