Franklin Electric Duplex Grinder Pump Control Panels

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Franklin Electric Duplex Grinder Pump Control Panels are engineered to manage two IGP grinder pumps inside a single wet well or lift station, providing reliable alternating pump operation, high-water alarming, and full monitoring for residential and commercial sewage pump stations. At Ken’s Distributing Company, we supply the complete range of Franklin Electric duplex control panels in both single phase and three phase configurations, sized to match your pump FLA ratings and site electrical service. Whether you are installing a new duplex grinder pump system or replacing an existing panel, Kendisco has the right model in stock with full technical support available.

What Are Duplex Grinder Pump Control Panels?

A duplex grinder pump control panel is a dedicated electrical control enclosure that manages two grinder pumps inside a single wet well or sewage pump station. Unlike a simplex panel that runs one pump, a duplex panel alternates between two pumps, running them in rotation to balance wear and provide built-in redundancy. If one pump fails or the liquid level rises beyond normal operating range, the panel activates the second pump and triggers an alarm to alert the property owner or service technician.

The Franklin Electric duplex grinder pump control panel is specifically designed to work with the IGP Series grinder pump, making it the natural companion panel for simplex-to-duplex upgrades, new duplex lift station installations, and commercial sewage pump stations where a single pump cannot be the only line of defense against system failure.

Ken’s Distributing Company recommends duplex control panels for multi-family housing, commercial properties, HOA lift stations, and any application where continuous sewage transfer is critical and pump downtime is not an option.

Duplex Grinder Pump Control Panel Technical Specifications

Specification	Detail
Panel Type	Duplex (Two-Pump) Grinder Pump Control
Enclosure Rating	NEMA 4X Fiberglass (Waterproof, Corrosion-Resistant)
Available Phase	Single Phase and Three Phase
Voltage Options	208V, 230V, 240V, 480V
Motor Contactor Type	IEC Motor Contactor
Float Switch Compatibility	Four Float Switches (Sold Separately)
Operation Modes	Hand, Off, Auto (HOA Switch)
Circuit Protection	Separate Control and Power Circuit Breakers
Alarm Type	Audible and Visual High-Water Alarm
Alarm Switch	Alarm ON/OFF Switch Included
Wiring	Color-Coded Terminal Strip
Security	Padlock Provision on Enclosure
Single Phase Note	Includes Start/Run Capacitors and Relay for Motor Operation
Compatible Pump	Franklin Electric IGP Series Grinder Pump

Order Information

Single Phase Control Panels

Three Phase Control Panels

Item	Model	Description
515285	3221W401H17A	Duplex Control Panel, 3PH
515287	3221W511X6A19B	Duplex Control Panel, 3PH
515308	3221W301H17A	Duplex Control Panel, 208/240/480V, 3PH, FLA 4.0-6.3

Applications and Industries

Franklin Electric Duplex Grinder Pump Control Panels are used wherever two-pump sewage stations are required for redundancy, high usage, or regulatory compliance. Kendisco supplies these panels to contractors, municipalities, and property managers across a wide range of applications.

Duplex grinder pump lift stations for residential subdivisions and HOAs
Multi-family housing complexes requiring continuous sewage transfer
Commercial properties where a single pump failure would cause immediate system backup
Municipal low-pressure sewer systems with duplex pump stations
Replacement panels for existing duplex grinder pump basins
New construction where dual-pump redundancy is specified by local code
Sewage ejector basins serving multiple units or buildings
Light industrial facilities with wastewater transfer requirements

Features and Benefits of the Franklin Electric Duplex Grinder Pump Control Panel

NEMA 4X fiberglass enclosure provides full waterproof and corrosion-resistant protection in outdoor and below-grade installations, extending panel life in wet environments
Separate control and power circuit breakers keep the control circuit isolated from the power circuit, improving safety and simplifying troubleshooting during service calls
IEC motor contactor provides reliable, rated switching for the grinder pump motors across all approved voltage and FLA configurations
HOA (Hand-Off-Auto) switch gives operators the ability to run either pump manually, shut a pump off for service, or return it to automatic operation without rewiring or panel modification
Compatible with four float switches allows the panel to manage separate start, stop, and alarm levels for a two-pump wet well with full liquid level control
High-water alarm with both audible and visual signals ensures that rising liquid levels are detected immediately, reducing the risk of sewage backup or overflow
Alarm ON/OFF switch gives the operator control over alarm output without affecting pump operation
Color-coded terminal strip simplifies field wiring, reduces installation errors, and speeds up commissioning for installers
Padlock provision on the enclosure secures the panel against unauthorized access in shared or public areas
Single phase models include start/run capacitors and relay built into the panel, eliminating the need for separate capacitor kits and ensuring compliance with Franklin Electric requirements

Installation and Compatibility

Franklin Electric Duplex Grinder Pump Control Panels are designed for use with the Franklin Electric IGP Series Grinder Pump in duplex wet well configurations. Before selecting a panel, confirm the following installation details to ensure proper compatibility.

Single phase models are rated for 208/230V service and are available in FLA 16 max and FLA 22 max versions. Match the panel FLA rating to the full load amp draw of your installed IGP pump model. The IGP Series single phase pump draws 13.9A at 230V, which is compatible with both single phase panel options listed above.

Three phase models cover 208V, 240V, and 480V service with FLA ranges from 4.0 to 6.3 amps for 460V three phase applications. Select the three phase panel that matches your site voltage and the IGP three phase model installed in the wet well.

The panel requires four float switches to manage dual pump operation. Float switches are sold separately and must be installed at the correct elevations inside the wet well to control pump lead/lag sequencing, pump off level, and high-water alarm activation. Ken’s Distributing Company can help you select the correct float switch configuration for your wet well depth and design.

The NEMA 4X enclosure is suitable for outdoor wall mounting, indoor mounting in wet or humid locations, and surface mounting adjacent to the wet well riser. The padlock provision allows the panel to be secured in shared or publicly accessible locations.

For single phase installations, the panel includes start/run capacitors and the relay required for IGP Manual Series pump motor starting. This eliminates the need for a separate capacitor kit and ensures that the system meets Franklin Electric and third-party approval requirements.

Duplex Grinder Pump Control Panel Replacement Parts and Accessories

If you need replacement components for an existing Franklin Electric duplex grinder pump control panel, Ken’s Distributing Company carries genuine Franklin Electric replacement parts and accessories through Kendisco. This includes compatible float switches, contactors, and repair components for maintaining your duplex panel in proper working order.

Visit our Franklin Electric replacement parts and repair kits page to browse available service components. Contact our team at Ken’s Distributing Company for help identifying the correct replacement part for your specific panel model number.

Frequently Asked Questions About Franklin Electric Duplex Grinder Pump Control Panels

Does a duplex grinder pump system need a special control panel?

Yes. A duplex grinder pump system requires a duplex-rated control panel specifically designed to manage two pumps. A standard simplex panel can only control one pump and does not include the pump alternation logic, dual motor contactors, or four-float switch inputs required for proper duplex pump station operation. Using the wrong panel can result in both pumps running simultaneously, improper lead/lag sequencing, or loss of alarm capability.

What features does a Franklin Electric duplex grinder pump control panel include?

The Franklin Electric duplex grinder pump control panel includes an IEC motor contactor for each pump, separate control and power circuit breakers, a Hand-Off-Auto (HOA) switch for each pump, a high-water alarm with audible and visual output, an alarm ON/OFF switch, a color-coded terminal strip for field wiring, and a NEMA 4X fiberglass enclosure with padlock provision. Single phase models also include built-in start/run capacitors and relay for IGP Manual Series pump compatibility.

What float switches does the duplex panel work with?

The Franklin Electric duplex grinder pump control panel is compatible with four float switches, which are sold separately. The four floats manage the pump off level, pump lead (first pump on) level, pump lag (second pump on) level, and high-water alarm level inside the wet well. Kendisco can help you select the correct float switches for your wet well diameter and installation depth.

Is the duplex panel NEMA rated for outdoor installation?

Yes. The Franklin Electric duplex grinder pump control panel uses a NEMA 4X rated fiberglass enclosure, which provides protection against rain, splashing water, windblown dust, and corrosion. This rating makes it suitable for outdoor wall mounting, installation near a wet well riser, or any location where moisture and weather exposure are a concern.

What is the difference between the single phase and three phase duplex panels?

Single phase duplex panels are rated for 208/230V service and include built-in start/run capacitors and relay for single phase IGP grinder pump motor starting. Three phase panels are available for 208V, 240V, and 480V service and do not require capacitors since three phase motors do not need them for starting. Select the panel that matches both the voltage available at your site and the electrical configuration of your installed IGP pump models.

Can I use the duplex panel with pumps other than the IGP Series?

The Franklin Electric duplex grinder pump control panel is designed and rated for use with the Franklin Electric IGP Series Grinder Pump. Using the panel with other pump brands or models may void compliance ratings and is not recommended. If you are working with a non-IGP pump installation, contact Ken’s Distributing Company to discuss compatible panel options for your specific pump brand and FLA rating.

How do I choose between the FLA 16 and FLA 22 single phase panel models?

The full load amp (FLA) rating of your panel must be equal to or greater than the FLA of the grinder pump it controls. The Franklin Electric IGP Series single phase pump draws 13.9A at 230V. Both the FLA 16 and FLA 22 single phase panels are compatible with the IGP Series at that FLA rating. The FLA 22 panel provides additional capacity headroom and is the preferred choice for installations where future pump upgrades or higher FLA motors may be considered.

Item	Model	Description
515362	1052444	Duplex Control Panel, 208/230V, 1PH, FLA 22 max
515355	1026540	Duplex Control Panel, 208/230V, 1PH, FLA 16 max