When a distributor or system integrator is sourcing a PWM solar charge controller for several low-voltage battery configurations, the useful starting point is a clear match between rated charging current, system voltage and the intended battery chemistry. The GERIXI SS-A Series provides the SS4820A and SS4830A models with 20A / 30A charging options for 12V, 24V, 36V and 48V systems. This makes the series a practical candidate for compact off-grid solar kits, service replacements and small commercial backup packages that do not require a higher-current controller.
SS-A specifications for a purchase comparison
The database specifications for the series identify the controller type as PWM and list 20A / 30A rated charging current. The controller supports automatic voltage recognition across 12V, 24V, 36V and 48V systems, with a maximum PV open-circuit voltage of 100V. Battery support is listed as lead-acid, LiFePO4 and lithium-ion. The enclosure dimensions are 215 × 105 × 50 mm, which is useful when a buyer is checking a replacement position or planning a compact control panel.
Additional recorded features include a 5V/2A USB output, a load timer with manual override, and MOSFET over-temperature protection above 85°C. These details should be checked against the required installation and battery-management arrangement before an order is finalized. The SS4820A and SS4830A model choice should follow the required charging-current band rather than being selected only by the nominal system voltage.
Where this PWM controller fits
The 12V and 24V configurations can suit small solar charging assemblies, backup battery kits and field service equipment where a 20A or 30A controller is appropriate. The 36V and 48V settings extend the same series to other low-voltage battery-system designs. The USB output may be useful for small auxiliary loads, while the timer and manual override can help when the load schedule is part of the project specification.
This product should not be treated as a whole-building power-management device or sized for a system that needs more than the recorded 20A / 30A charging range. Buyers should also confirm the PV array open-circuit voltage, battery chemistry, operating voltage and load requirements with their installer or engineering team before selecting the model.
Information to prepare for a supplier quotation
For a wholesale or bulk-order enquiry, provide the preferred model (SS4820A or SS4830A), battery-system voltage, battery type, expected quantity and the required USB, timer and manual-override functions. It is also useful to state the PV open-circuit voltage and the enclosure space available. GERIXI can then review the product selection and the project requirements; MOQ, packaging, documentation, delivery timing and any private-label or OEM service should be confirmed for the specific order rather than assumed.
Review the SS-A Series product details for the recorded specifications. For model selection, distributor supply or a bulk-order quotation, use the GERIXI contact page and include the battery voltage, chemistry, PV data, quantity and destination requirements.
