48V 400W 50M Tiger Solar Pump

The 48V 400W Tiger Solar Pump is a significant step up from the 24V models. It is designed for farmers and homeowners who need to push water higher or need a much stronger daily flow rate (yield) for larger irrigation setups or deeper boreholes.

By moving up to 48 Volts, the system experiences lower current line losses, allowing you to run longer cables down into deep wells without losing power efficiency.

Technical Specifications

Depending on whether you purchase the Screw (Progressive Cavity) variant or the Centrifugal Impeller variant, the exact flow vs. head ratios will vary slightly, but the standard ratings generally fall into these specs:

Key Advantages of the 48V 400W Setup

• Massive Daily Output: Under strong sunlight, this pump can deliver 20,000 to 30,000 liters of water per day. That is double the output of the smaller 24V versions, making it highly effective for multi-acre drip irrigation or large overhead tank filling.

• Longer Cable Runs: Higher voltage means you can run thinner, less expensive submersible cable down a deep well without suffering heavy voltage drops.

• Advanced Internal Control: Most Tiger 48V models feature modern internal regulators with Automatic Maximum Power Point Tracking (MPPT). This maximizes the pump’s speed even when the sky is partially overcast.

• Dry-Run & Over-Voltage Protection: The smart motor automatically cuts off power if it senses that the water level in your borehole has dropped below the intake level, saving the internal mechanism from burning out.

☀️ Crucial Solar Panel Wiring Guide

Because this is a 48V system, you cannot run it off a single standard 12V or 24V panel. The internal controller requires a high open-circuit voltage ($V_{oc}$) to kick on (usually targeting between 60V and 90V DC from the solar array).

To get the absolute best performance out of the 400W motor, you should aim for 550W to 680W of total solar panel power. Here are the two best ways to wire your panels:

Option A: The Simple Two-Panel Setup (Recommended)

• What to buy: Two 330W to 350W solar panels (standard panels used for home installations).

• How to wire: Connect them in Series (Positive of Panel 1 to Negative of Panel 2). This combines their voltages into the perfect 60V–72V sweet spot for the 48V pump.

Option B: The Four-Panel Setup (For Smaller Panels)

• What to buy: Four 150W to 180W solar panels.

• How to wire: Wire them in a Series-Parallel configuration (two pairs of two panels wired in series, then combined in parallel) to ensure you reach the correct 48V+ operating threshold without overloading the controller’s voltage limits.

Installation Tip: Always mount a simple DC disconnect switch between your solar panels and the pump. This lets you safely turn off the power when clean-up or maintenance is needed, rather than sparking the wires while the sun is blasting hot.