The SA-B Series is a practical PWM solar charge controller family for off-grid battery systems using 12 V, 24 V, 36 V or 48 V batteries. The SA4860B provides a 60 A charging-current option, automatic system-voltage recognition and a compact enclosure for solar charging and DC lighting projects.
Where the SA-B controller fits
The SA-B range is useful when a project needs a straightforward PWM controller with basic display functions, load control and a higher current option. It can be considered for residential off-grid systems, rural installations, DC lighting and distributor supply programs where the panel and battery configuration is already known.
Main points to check before choosing SA4860B
- 60 A rated charging current for the SA4860B configuration.
- 12 V, 24 V, 36 V and 48 V battery-system support with automatic recognition.
- 100 V maximum PV open-circuit voltage.
- Lead-acid, LiFePO4 and lithium-ion battery applications listed in the product information.
- 5 V/2 A USB output and light/timer control for compatible DC load applications.
The 100 V PV figure is an open-circuit limit, not a recommendation to use every panel arrangement below that number without further checking. Panel voltage can rise in cold conditions. Confirm the array voltage, battery charging settings and expected load current against the exact installation instructions before commissioning.
PWM selection and load-control considerations
PWM controllers are often selected for simpler systems where panel voltage and battery voltage are closely matched. The SA-B model also includes light and timer functions, which can be useful for DC lighting schedules. The connected load, schedule and battery protection settings should be checked together so that the timer function does not create an unexpected overnight battery demand.
Installation and wholesale order checks
- Confirm the battery chemistry and charging profile before wiring.
- Check maximum PV open-circuit voltage in the expected installation temperature range.
- Connect the battery first, then the PV array, and then the DC load.
- Select cable size, fuse or breaker and ventilation for the actual current.
- For a quotation, provide the required voltage, PV configuration, quantity and destination market.
For distributors, the SA-B Series offers a clear 60 A option for multi-voltage battery systems while keeping the product discussion focused on the actual panel, battery and DC-load requirements. Ask Gerixi to confirm the exact supplied version, documentation, customization scope, minimum order quantity and warranty terms before placing an order.
