Choosing the right submersible pump wire gauge is a critical step for a successful well installation. An undersized cable can cause a voltage drop, leading to your pump motor overheating, running inefficiently, and ultimately failing prematurely. This guide will help you select the correct size to ensure your system runs reliably for years.
Understanding the Key Factors
To calculate the right wire gauge, you need to consider three main factors:
- Pump Horsepower (HP): Higher horsepower pumps require more current, which means a larger wire size is needed.
- Voltage: The voltage of your system (115V or 230V) affects the current draw. Lower voltage systems draw more current and will need a thicker wire.
- Total Distance: This is the distance from the power source (typically the control box) down to the pump motor. The longer the distance, the greater the voltage drop, so you'll need a larger gauge to compensate.
Quick Sizing Chart
Use this simplified chart as a quick reference for common residential installations. For more precise calculations, consult the National Electrical Code (NEC) tables or use a dedicated online calculator.
Why Trust Our Submersible Pump Cable?
Sizing your cable is only half the battle. You also need a high-quality product that won’t fail under pressure. Our submersible pump wire is UL Listed for direct burial and wet environments, ensuring it can handle the demanding conditions of a deep well. Our robust jacket and high-quality copper conductors are designed to prevent voltage drop and protect your pump.
