DOYIN DC Controller 1100W (DYS-120)

The DOYIN DYS-120 is a 1100W 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 1100W pump systems, the DYS-120 is matched to DOYIN's 1.5HP DC submersible pump models — specifically the 4SDS5-1100W (1.5HP) pump, which runs on a DC voltage range of 130–200V and pairs with a 3 x 550W 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 domestic boreholes and small farm water points where solar is the sole power source and grid backup isn't required or available.

CoastalSolar Africa supplies and installs the DYS-120 DC controller, matched correctly to your DOYIN pump model and solar array, across the coastal region.

Specifications:

• Model: DYS-120
• Type: DC-only Pump Controller (solar power, no grid switching)
• Rated power: 1100W
• Compatible with: DOYIN 4SDS5-1100W (1.5HP) DC pump, voltage range DC 130–200V
• Matched solar array: 3 x 550W panels (per pump's ideal power rating)
• Application: Domestic and small farm borehole pump systems (solar-only)

FAQs:

Is there a hybrid version of the DYS-120?
DOYIN's listed AD (hybrid) controller range starts at 800W and steps up from 1500W, so a DYS-120AD is not part of the standard catalog lineup — CoastalSolar Africa can confirm current hybrid options if you need grid backup at this power level.

Which DOYIN pump uses the DYS-120 controller?
It's matched to the 4SDS5-1100W (1.5HP) DC pump model in the DOYIN range, which requires a 130–200V DC input from roughly 3 x 550W solar panels.

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.

Can this controller run without batteries?
Yes, it's designed for direct solar-to-pump operation during daylight hours, with no batteries required.

Do you supply and fit this controller in Kilifi and Malindi?
Yes, CoastalSolar Africa supplies and installs the DYS-120 controller, correctly matched to your pump model and solar array, across Mombasa, Malindi, Diani, Kilifi, Lamu, and the wider coastal region.