PR / PRS / Solsum — PWM solar charge controller 6–30 A
Country: Netherlands · Model: PR / PRS / Solsum
PR, PRS and Solsum are simple PWM solar charge controllers rated 6–30 A for home solar systems, RVs and marine vessels. The controller detects 12 or 24 V system voltage automatically when the battery is connected. They suit small solar setups where one or two panels charge a battery for lighting, communications or a fridge.
- Type
- PWM
- Current
- 6–30 A
- System voltage
- 12/24 V automatic
- Functions
- boost, equalization and float charging, load disconnect (LVD), temperature compensation
Technical specifications
| Type | PWM |
|---|---|
| Current | 6–30 A |
| System voltage | 12/24 V automatic |
| Functions | boost, equalization and float charging, load disconnect (LVD), temperature compensation |
| Indication | LED display (PRS) |
| Customs codes (for reference) | |
| HS code | 8504.40 |
| UKTZED code (Ukraine) | 8504405500 |
| CN code (EU) | 85044060 |
Specifications are taken from the manufacturer’s technical documentation. Updated . Customs codes are for reference only; the final code is determined at customs declaration for the specific model.
Description
A PWM controller connects the panel to the battery in pulses, so panel operating voltage has to suit the battery, with panels made for 12 V systems on a 12 V battery rather than high-voltage modules from grid-tied plants. The controller runs boost, equalization and float charging. On deep discharge the LVD function disconnects the load wired to the controller output, so the battery does not go into irreversible discharge. Charge voltage is temperature compensated, rising in winter and dropping in summer, so the battery is not undercharged in the cold or gassing in the heat. The PRS model has an LED display. The series covers 6–30 A on 12 and 24 V systems.
How to choose
Size the controller with margin above the combined short-circuit current of all panels in parallel, within the 6–30 A range. Choose the PRS when you want to read voltage and charge mode on a display without a multimeter. The LVD load output suits lighting and small DC loads, while an inverter, such as a 12/24 V PS or SWI, goes straight to the battery because its current is too high for the controller output. With more panels or high-voltage modules, PWM no longer fits and an MPPT controller is needed.
Request a price and lead time
PR / PRS / Solsum — PWM solar charge controller 6–30 A. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What battery voltage do PR controllers work with?
12 and 24 V systems, detected automatically.
What is the maximum current of the PR / PRS / Solsum PWM controllers?
The series covers 6 to 30 A.
Does the controller have a load disconnect?
Yes, the LVD function cuts the load on deep battery discharge.
Can a grid-tie solar panel be used with a PR controller?
It is a poor match, since a PWM controller does not step panel voltage down and much of the panel power is wasted. Choose panels for a 12 or 24 V battery.
Why does the controller use temperature compensation?
It raises charge voltage in the cold and lowers it in the heat, so the battery charges fully without overheating.
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