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LIBERTY PUMPS Multi-Purpose Pump Control Panel - Multi-Purpose Pump Control Panels
LIBERTY PUMPSMulti-Purpose Pump Control Panels

LIBERTY PUMPS Multi-Purpose Pump Control Panel

The LIBERTY PUMPS Duplex Control Panel is a multi-purpose pump control panel designed for single-phase operation at 120/208/240V AC, supporting a current range of 0 to 14.9 A. It features a demand dose dosing…

SKU 3G-OTH-93188

Also listed as: AE21L4 · AE21L 4 · AE21L-4

Brand
LIBERTY PUMPS
Item
Multi-Purpose Pump Control Panel
Category
Multi-Purpose Pump Control Panels
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

LIBERTY PUMPS
Manufacturer Part Number
AE21L=4
Type
Single Phase, 0 to 14.9 A, Tether Float
AC
120/208/240V
Current
0 to 14.9 A
Alert Output
Audio
Rated Voltage
120/208/240V AC
Dosing Schedule
Demand Dose
Intrinsic Safety
Not Specified Intrinsically Safe
Includes Reversing
Non-Reversing

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LIBERTY PUMPS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The LIBERTY PUMPS Duplex Control Panel is a multi-purpose pump control panel designed for single-phase operation at 120/208/240V AC, supporting a current range of 0 to 14.9 A. It features a demand dose dosing schedule and an audio alert output, and is classified as non-reversing and not specified intrinsically safe.

Frequently Asked Questions

What is the LIBERTY PUMPS Duplex Control Panel used for?

The LIBERTY PUMPS Duplex Control Panel is used to manage two pumps in single-phase wastewater or effluent systems. It operates on a demand dose schedule, activating pumps based on liquid level via a tether float. Common applications include sewage lift stations, sump basins, and commercial dewatering where redundant pump operation is required.

What are the specifications of the LIBERTY PUMPS Duplex Control Panel?

The LIBERTY PUMPS Duplex Control Panel (MPN AE21L=4) supports single-phase 120/208/240V AC input and a current range of 0 to 14.9 A. It features a demand dose dosing schedule, audio alert output, and is non-reversing. The panel is not specified as intrinsically safe and uses a tether float for level sensing.

Where to buy the LIBERTY PUMPS Duplex Control Panel worldwide?

3G Electric supplies the LIBERTY PUMPS Duplex Control Panel worldwide. As a global industrial equipment distributor established in 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this panel to any international destination.

How to install the LIBERTY PUMPS Duplex Control Panel?

Install the LIBERTY PUMPS Duplex Control Panel in a dry, accessible location near the pumps. Mount the enclosure securely, connect single-phase 120/208/240V AC power to the input terminals, and wire each pump to the designated outputs. Attach the tether float at the appropriate level for demand dose activation. Always follow local electrical codes and consult a licensed electrician.

Used in

Common applications for LIBERTY PUMPS
Municipal wastewater treatment — LIBERTY PUMPS Quadplex Control Panel (MPN QE34=6-511-3) for managing multiple pump stations
Commercial building sump management — LIBERTY PUMPS Duplex Control Panel (MPN AE34=3-621-5) for alternating pump operation
Residential sewage handling — LIBERTY PUMPS 41-gallon polyethylene basin (MPN K001132) for below-grade installations
Industrial effluent transfer — LIBERTY PUMPS Grinder Pump (MPN LSGH503MV-5) for solids reduction in high-flow applications
Emergency backup sump systems — LIBERTY PUMPS Battery Backup Sump Pump (MPN 442-10A-EYE) with Wi-Fi monitoring for flood prevention
Single-pump dewatering — LIBERTY PUMPS Simplex Control Panel (MPN SX24HC1=3) for small-scale water removal

LIBERTY PUMPS Products

3G Electric supplies LIBERTY PUMPS multi-purpose pump control panels. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
This multi-purpose pump control panel is designed for single-phase operation at 120/208/240V AC, supporting a current range of 0 to 14.9 A. It features a demand dose dosing schedule, non-reversing functionality, and an audio alert output. The panel includes a tether float switch and is suitable for managing pumps in wastewater, effluent, and dewatering applications
LIBERTY PUMPS
This multi-purpose pump control panel is designed for single-phase operation at 120/208/240V AC, supporting a current range of 0 to 14.9 A. It features a demand dose dosing schedule, non-reversing functionality, and an audio alert output. The panel includes a tether float switch and is suitable for managing pumps in wastewater, effluent, and dewatering applications
Multi-purpose pump control panel for single-phase operation at 120/208/240V AC, rated 0 to 14.9 A. Features demand dose dosing schedule, audio alert output, and non-reversing operation. Includes tether float switch. Suitable for managing two pumps in alternating or lead-lag operation for wastewater, effluent, and dewatering applications in residential and light commercial systems
LIBERTY PUMPS
Multi-purpose pump control panel for single-phase operation at 120/208/240V AC, rated 0 to 14.9 A. Features demand dose dosing schedule, audio alert output, and non-reversing operation. Includes tether float switch. Suitable for managing two pumps in alternating or lead-lag operation for wastewater, effluent, and dewatering applications in residential and light commercial systems
This multi-purpose pump control panel is designed for duplex pump systems in wastewater and effluent applications. It operates on single-phase 120/208/240V AC power, with a current range of 0 to 14.9 A. The panel is non-reversing, features a demand dose dosing schedule, and includes an audio alert output. It is not specified as intrinsically safe
LIBERTY PUMPS
This multi-purpose pump control panel is designed for duplex pump systems in wastewater and effluent applications. It operates on single-phase 120/208/240V AC power, with a current range of 0 to 14.9 A. The panel is non-reversing, features a demand dose dosing schedule, and includes an audio alert output. It is not specified as intrinsically safe
Multi-purpose pump control panel for duplex pump systems in wastewater or water transfer applications. Single-phase, non-reversing, with demand dose sequencing and visual alert output. Rated 120/208/240V AC, 0 to 14.9 A, includes tether float switch
LIBERTY PUMPS
Multi-purpose pump control panel for duplex pump systems in wastewater or water transfer applications. Single-phase, non-reversing, with demand dose sequencing and visual alert output. Rated 120/208/240V AC, 0 to 14.9 A, includes tether float switch
This multi-purpose pump control panel operates on single-phase 120/208/240V AC power and handles currents from 0 to 14.9 A. It features a tether float switch, visual alert output, and demand dose scheduling. The panel is non-reversing and not specified as intrinsically safe. Typical applications include control of pumps in wastewater or water transfer systems such as sewage lift stations and sump basins
LIBERTY PUMPS
This multi-purpose pump control panel operates on single-phase 120/208/240V AC power and handles currents from 0 to 14.9 A. It features a tether float switch, visual alert output, and demand dose scheduling. The panel is non-reversing and not specified as intrinsically safe. Typical applications include control of pumps in wastewater or water transfer systems such as sewage lift stations and sump basins
This duplex control panel manages two pumps in single-phase systems at 120/208/240V AC, handling currents from 0 to 14.9 A. It features a tether float for level sensing, an audio alert output for fault indication, and a demand dose dosing schedule. The panel is non-reversing and suitable for wastewater, effluent, sump, and dewatering applications
LIBERTY PUMPS
This duplex control panel manages two pumps in single-phase systems at 120/208/240V AC, handling currents from 0 to 14.9 A. It features a tether float for level sensing, an audio alert output for fault indication, and a demand dose dosing schedule. The panel is non-reversing and suitable for wastewater, effluent, sump, and dewatering applications

More from LIBERTY PUMPS

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LIBERTY PUMPS Duplex Control Panel: Duplex, 3, 575V AC, 6 to 10 A, Tether Float, 4 Switches Included (MPN AE54=4-405-5)
LIBERTY PUMPS
LIBERTY PUMPS Duplex Control Panel: Duplex, 3, 575V AC, 6 to 10 A, Tether Float, 4 Switches Included (MPN AE54=4-405-5)
This non-reversing control panel is designed for simplex pump systems in wastewater or effluent applications. It operates at 208/240/480V AC with a current range of 9 to 14 A, includes a tether float switch, and provides an audio alert output. The plastic enclosure houses a demand dose dosing schedule
LIBERTY PUMPS
This non-reversing control panel is designed for simplex pump systems in wastewater or effluent applications. It operates at 208/240/480V AC with a current range of 9 to 14 A, includes a tether float switch, and provides an audio alert output. The plastic enclosure houses a demand dose dosing schedule
Multi-purpose pump control panel for simplex pump operation. Rated 575V AC, 1.6 to 2.5 A, non-reversing, with tether float switch and audio alert output. Plastic NEMA 4X enclosure. Demand dose dosing schedule. Suitable for controlling a single pump in wastewater, sump, or effluent systems
LIBERTY PUMPS
Multi-purpose pump control panel for simplex pump operation. Rated 575V AC, 1.6 to 2.5 A, non-reversing, with tether float switch and audio alert output. Plastic NEMA 4X enclosure. Demand dose dosing schedule. Suitable for controlling a single pump in wastewater, sump, or effluent systems
LIBERTY PUMPS Duplex Control Panel: Duplex, 3, 575V AC, 6 to 10 A, Tether Float, 4 Switches Included (MPN AE54=4-405)
LIBERTY PUMPS
LIBERTY PUMPS Duplex Control Panel: Duplex, 3, 575V AC, 6 to 10 A, Tether Float, 4 Switches Included (MPN AE54=4-405)
This duplex control panel manages two pumps in a demand-dose wastewater or effluent system. It operates on single-phase 120/208/240V AC power, rated for 15 to 20 A, and uses a tether float for level control. The panel alternates pump operation to balance wear and provides a visual alert for high-level conditions. It is non-reversing and suitable for residential or light commercial lift stations
LIBERTY PUMPS
This duplex control panel manages two pumps in a demand-dose wastewater or effluent system. It operates on single-phase 120/208/240V AC power, rated for 15 to 20 A, and uses a tether float for level control. The panel alternates pump operation to balance wear and provides a visual alert for high-level conditions. It is non-reversing and suitable for residential or light commercial lift stations
Multi-purpose pump control panel for simplex pump applications. Features a tether float for level sensing and demand dose dosing schedule. Non-reversing with visual alert output. Rated 200V/230V, 18.5 A. Plastic enclosure suitable for outdoor use
LIBERTY PUMPS
Multi-purpose pump control panel for simplex pump applications. Features a tether float for level sensing and demand dose dosing schedule. Non-reversing with visual alert output. Rated 200V/230V, 18.5 A. Plastic enclosure suitable for outdoor use
This simplex control panel is designed for single-phase pump control in wastewater, effluent, and dewatering systems. It operates at 120/208/240V AC with a current range of 0 to 14.9 A. The panel features a non-reversing contactor, audio alert output, and demand dose dosing schedule. Enclosure is plastic
LIBERTY PUMPS
This simplex control panel is designed for single-phase pump control in wastewater, effluent, and dewatering systems. It operates at 120/208/240V AC with a current range of 0 to 14.9 A. The panel features a non-reversing contactor, audio alert output, and demand dose dosing schedule. Enclosure is plastic
Multi-purpose pump control panel for duplex pump systems. Operates on single-phase 120/208/240V AC, 15 to 20 A, with tether float control. Features demand dose dosing schedule, non-reversing configuration, and audio alert output. Suitable for wastewater and effluent pumping applications
LIBERTY PUMPS
Multi-purpose pump control panel for duplex pump systems. Operates on single-phase 120/208/240V AC, 15 to 20 A, with tether float control. Features demand dose dosing schedule, non-reversing configuration, and audio alert output. Suitable for wastewater and effluent pumping applications