DOYIN DC Controller 3000W (DYS-280)

The DOYIN DYS-280 is a 3000W DC controller built specifically for solar-only submersible water pumps, managing power delivery from your solar array directly to the pump motor without any grid-power switching capability. It's a dependable, lower-cost control option for off-grid coastal properties in Mombasa, Malindi, Diani, Kilifi, and Lamu where the pump will run purely on solar throughout its operating life.

Rated for 3000W pump systems, the DYS-280 is matched to DOYIN's higher-capacity DC submersible pump models — specifically the 4SDS5-3000W (4.0HP) pump, which runs on a DC voltage range of 280–400V and pairs with a 7 x 600W solar array. Always confirm your specific pump model's wattage and voltage match this controller before installation, as running a pump with a mismatched controller can damage the motor.

This controller suits larger domestic boreholes, small farm irrigation systems, and community water points where solar is the sole power source and grid backup isn't required or available.

CoastalSolar Africa supplies and installs the DYS-280 DC controller, matched correctly to your DOYIN pump model and solar array, across the coastal region.

Specifications:

• Model: DYS-280
• Type: DC-only Pump Controller (solar power, no grid switching)
• Rated power: 3000W
• Compatible with: DOYIN 4SDS5-3000W (4.0HP) DC pump, voltage range DC 280–400V
• Matched solar array: 7 x 600W panels (per pump's ideal power rating)
• Application: Domestic, farm, and community borehole pump systems (solar-only)

FAQs:

What's the difference between the DYS-280 and DYS-280AD?
The DYS-280 is DC-only and works with solar power alone. The DYS-280AD is a hybrid version that can also switch to grid (AC) power as backup.

Which DOYIN pump uses the DYS-280 controller?
It's matched to the 4SDS5-3000W (4.0HP) DC pump model in the DOYIN range, which requires a 280–400V DC input from roughly 7 x 600W solar panels.

Can I add grid backup later with this controller?
No — the DYS-280 is DC-only. If you may need grid backup in future, the hybrid DYS-280AD is the better choice from the outset.

Do I need to match the exact voltage range?
Yes, correct voltage matching between panels, controller, and pump is essential — CoastalSolar Africa can confirm your array configuration before installation.

Do you supply and fit this controller in Kilifi and Malindi?
Yes, CoastalSolar Africa supplies and installs the DYS-280 controller, correctly matched to your pump model and solar array, across Mombasa, Malindi, Diani, Kilifi, Lamu, and the wider coastal region.