rutan

KSh14,500.00

Here are the short, essential specifications for the Rutan 400W 50M Submersible Solar Pump:

Core Specifications

Power: 400W
Max Head (Vertical Lift): 50 meters
Max Flow Rate: Up to 2,000–3,000 Liters per hour (varies by operational depth)
Operating Voltage: 24V DC
Outlet Diameter: 1 inch (25mm)
Pump Diameter: 3-inch (standard size for 4-inch or larger boreholes)
Material: Stainless Steel body

Recommended Solar Setup

Solar Panel Requirement: 500W to 600W of total solar capacity.
Typical Configuration: 2 x 300W panels connected in parallel.

The Rutan 400W 50-Meter Submersible Solar Pump is a highly popular, budget-friendly DC-powered pump designed primarily for shallow boreholes, wells, and water transfer.

The core technical breakdown, what you need to run it, and its typical performance estimates are detailed below.

Solar Panel Matching Guide

Because solar panels don’t always operate at 100% efficiency due to heat and dust, you should always oversize your solar array relative to the pump’s wattage.

To get the best performance out of a 400W pump, the following setups are recommended:

Option A (Direct Solar Setup): 2 x 250W to 300W solar panels connected in parallel (if it’s a 24V pump) to ensure you are supplying a steady 500W–600W of solar capacity.
Option B (Battery Setup): Two 12V solar batteries connected in series to create a 24V bank, paired with a solar charge controller to keep the pump running consistently even during temporary cloud cover.

Real-World Performance

It is important to remember the inverse relationship between depth and water flow. If your well is deep, your hourly yield will decrease:

At 10–20 meters depth: Expect maximum water output (closer to 2,500+ liters per hour). Great for rapid tank filling or overhead irrigation.
At 35–45 meters depth: The flow will slow down significantly (closer to 500–1,000 liters per hour) because the motor is working