Franklin Electric FS Series 1.5 HP Submersible Well Pump – Model 10FS15S4-3W230

Stainless Steel 1.5 HP Submersible Pump for Residential Potable Water Wells

Product Overview

The Franklin Electric 10FS15S4-3W230 is a 1.5 HP submersible well pump intended for residential and light commercial potable water applications. This 4-inch pump features a 3-wire, single-phase motor operating at 230V, capable of delivering a constant flow rate of 10 GPM. It utilizes floating stage hydraulics to improve efficiency and minimize wear when pumping water containing abrasives.

The pump is constructed with a stainless steel shell for corrosion resistance in standard well environments. Franklin Electric pumps are widely recognized for their reliable performance in private water systems.

Key Benefits of the Franklin 1.5 HP Submersible Well Pump

• Floating stage hydraulics improve sand handling and overall efficiency.
• Stainless steel discharge and motor bracket resist corrosion in aggressive water.
• The built-in check valve prevents backflow and system pressure loss.
• Encapsulated motor design protects electrical components from moisture.
• Heavy-duty discharge connection withstands piping stress.
• NSF 61 certification ensures safety for drinking water applications.
• Serviceability is straightforward, with a detachable lead and standard 4-inch NEMA mounting.

Franklin Submersible Pump Specifications

What’s Included

• Franklin Electric 10FS15S4-3W230 Pump End
• Franklin Electric 1.5 HP Encapsulated Motor

Available Options

You can choose from two purchase options to best suit your installation needs:

• Pump + Motor Only
  This package includes just the submersible pump and the factory-installed motor for systems where a compatible control box is already in place.
• Pump + Motor with Control Box
  This option provides the complete set: pump, motor, and a matching control box (Part Number 2801074915) for 3-wire operation.

Key Features – Franklin FS Series Pumps

Floating Stage Design

This hydraulic design allows impellers to float independently, reducing the downthrust load on the motor bearing and improving tolerance to sand.

Stainless Steel Construction

The shell, discharge, and motor bracket are made from corrosion-resistant stainless steel to extend the lifespan of the Franklin 1.5 hp submersible well pump in harsh groundwater conditions.

Built-In Check Valve

An integrated check valve in the discharge head maintains system pressure and protects the pump internals from water hammer damage.

Encapsulated Motor

The motor windings are hermetically sealed in a resin to prevent water intrusion, ensuring consistent operation for this 3-wire submersible pump.

Acetal Impellers

Impellers are molded from high-performance acetal, offering a smooth surface for efficient water flow and resistance to mineral buildup.

NEMA Standard Mounting

The pump end and motor utilize industry-standard NEMA mounting dimensions, making replacement and service simple for technicians.

Performance Overview

This Franklin submersible pump 1.5 hp model is optimized for deep well applications requiring a steady 10 GPM flow. With a shut-off head of 680 feet, it provides significant lift capacity for deeper static water levels or systems requiring higher surface pressure. The 17-stage configuration ensures consistent pressure generation across the operating curve. For exact performance data at specific depths, refer to the manufacturer's curve.

Common Applications

• Residential potable water supply
• Farm and agricultural irrigation
• Light commercial water systems
• Pressure boosting applications
• Deep well water extraction
• Cistern water transfer

Critical Installation Notes

• This unit requires a compatible control box for operation (sold separately).
• Ensure the well casing diameter is at least 4 inches to accommodate the pump.
• Users wondering how much a well pump to replace should factor in the cost of a control box and wire if upgrading from a 2-wire system.
• Installation must adhere to local electrical and plumbing codes.
• Do not exceed the maximum fluid temperature of 120 °F.

Get the Franklin 1.5 HP Submersible Well Pump from Cleanflow

Cleanflow supplies the Franklin Electric 10FS15S4-3W230, a Franklin submersible pump 1.5 HP, and other water system components throughout Canada and the USA. We stock a wide range of Submersible Well Pumps to meet various depth and flow requirements. Our inventory ensures quick availability for critical replacements.

Frequently Asked Questions

Why can’t I see an intake screen on this pump?

The intake screen on Franklin Electric FS Series submersible well pumps is internal, not an external wrap-around screen. This internal design helps protect the pump and supports efficient operation.

Because the intake screen is built into the motor bracket, it is not visible from the outside unless the pump is partially disassembled. The image below shows where the internal intake screen is located.

What control box do I need for this pump?

This pump requires a standard Franklin Electric control box designed for a 230V, single-phase, 3-wire submersible motor.

Is this pump compatible with a pressure tank?

Yes. This pump operates efficiently with standard bladder or diaphragm pressure tanks to automate water delivery in residential and light commercial water systems.

Does this pump come with a warranty?

Franklin FS Series pumps typically include a manufacturer warranty of 12 months from installation or 24 months from the date of manufacture, whichever occurs first.

Can I replace my existing 2-wire pump with this model?

Yes. Replacing a 2-wire pump with this 3-wire model requires installing a compatible control box and ensuring three power wires plus a ground are run to the pump.

What is the discharge size?

The pump features a 1.25-inch FNPT threaded discharge connection.

Do I need a pitless adapter for installation?

In colder climates, pitless adapters are commonly used to provide freeze protection by connecting the vertical drop pipe to the horizontal service line below the frost line.

Where can I find more Franklin Electric products?

Additional Franklin Electric pumps, motors, and control equipment are available through the Franklin Electric product collection.