Solar Power Regulators

Solar power regulators are used to prevent the battery bank connected to your solar panels from becoming overcharged.

How do solar panel regulators work?

Solar panel regulators monitor the flow of power between the solar panels and the connected battery. Some regulators may simply disconnect the flow of power when the battery is in danger of overcharging. Others monitor the flow and, when the battery voltage rises to the regulation point, they regulate the flow to hold the voltage at this point for a period of time. This is called the 'absorption' period, and generally allows the battery to become fully charged. The regulator then controls the charge to keep the battery at close to full charge, also known as the 'float' point.

Types of solar power regulators

Solar panel regulators come in different sizes depending on the amp rating of your solar panels. They usually have some kind of display to tell you which stage the regulator is in, which can be simple system of lights or a full LED display.


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Description Price Solar Panel Voltage Maximum Power Rating for 12 V Panels Maximum Current Rating for 12 V Panels Maximum Power Rating for 24 V Panels Maximum Current Rating for 24 V Panels Dimensions Depth Length Width
RS Stock No. 905-4532
Mfr. Part No.STCC10
£30.78
Each
Units
12 V, 24 V 150W 10A 150W 10A 135 x 70 x 35mm 35mm 135mm 70mm
RS Stock No. 905-4536
Mfr. Part No.STCC20
£48.38
Each
Units
12 V, 24 V 300W 20A 300W 20A 135 x 70 x 35mm 35mm 135mm 70mm
RS Stock No. 860-2887
Mfr. Part No.PR 2020
BrandSteca
£126.13
Each
Units
12 V, 24 V 900W 20A 900W 20A 187 x 96 x 44mm 44mm 187mm 96mm
RS Stock No. 860-2881
Mfr. Part No.PR3030
BrandSteca
£151.34
Each
Units
12 V, 24 V 900W 30A 900W 30A 187 x 96 x 44mm 44mm 187mm 96mm
RS Stock No. 860-2884
Mfr. Part No.PR 1515
BrandSteca
£124.84
Each
Units
12 V, 24 V 900W 15A 900W 15A 187 x 96 x 44mm 44mm 187mm 96mm
RS Stock No. 860-2875
Mfr. Part No.PR 1010
BrandSteca
£91.82
Each
Units
12 V, 24 V 900W 10A 900W 10A 187 x 96 x 44mm 44mm 187mm 96mm
RS Stock No. 913-2415
Mfr. Part No.TS-60
£319.58
Each
Units
125V 31W 2.1A 125W 4.2A 260.4 x 127 x 71mm 71mm 260.4mm 127mm
RS Stock No. 509-7122
Mfr. Part No.SS-10L-12
£113.01
Each
Units
12V dc - 10A - - 152 x 55 x 34mm 34mm 152mm 55mm
RS Stock No. 194-082
Mfr. Part No.SG-4
£63.06
Each
Units
12V - 4.5A - - - 38mm - 51mm
RS Stock No. 918-6437
Mfr. Part No.4040
BrandSteca
£152.72
Each
Units
12V - 40A - 40A 187 x 45 x 97mm 97mm 187mm 45mm
RS Stock No. 913-2418
Mfr. Part No.TS-MPPT-60
£980.66
Each
Units
150V dc 800W 60A 1600W 60A 291 x 130 x 142mm 142mm 291mm 130mm
RS Stock No. 913-2412
Mfr. Part No.SSD-25
£181.60
Each
Units
30V - - - - 168.78 x 55.12 x 34.52mm 34.52mm 168.78mm 55.12mm
RS Stock No. 509-7116
Mfr. Part No.SL-10L-12
£184.11
Each
Units
12V dc - 10A - - 168 x 55 x 34mm 34mm 168mm 55mm
RS Stock No. 913-2406
Mfr. Part No.TS-MPPT-45
£491.84
Each
Units
150V dc 600W 45A 1200W 45A 291 x 130 x 142mm 142mm 291mm 130mm
RS Stock No. 913-2402
Mfr. Part No.TS-45
£172.77
Each
Units
125V 31W 2.1A 125W 4.2A 260.4 x 127 x 71mm 71mm 260.4mm 127mm
RS Stock No. 913-2421
Mfr. Part No.SSD-25RM
£153.86
Each
Units
30V - - - - 168.78 x 55.12 x 34.52mm 34.52mm 168.78mm 55.12mm
RS Stock No. 913-2399
Mfr. Part No.SS-20L 12V
£157.39
Each
Units
30 V, 60 V - - - - 152 x 55 x 32mm 32mm 152mm 55mm
RS Stock No. 173-5594
Mfr. Part No.PS-30M
£264.84
Each
Units
12/24V dc - 30A - 30A 153 x 105 x 55mm 55mm 153mm 105mm
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