Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A - Multi-Purpose Pump Control Panels
LIBERTY PUMPSMulti-Purpose Pump Control Panels

LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A

The LIBERTY PUMPS Duplex Control Panel is a multi-purpose pump control panel designed for single-phase operation at 120/208/240V AC with a current range of 15 to 20 A. It features a demand dose dosing schedule, an…

SKU 3G-OTH-98102

Brand
LIBERTY PUMPS
Item
Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A
Category
Multi-Purpose Pump Control Panels
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

LIBERTY PUMPS
Manufacturer Part Number
AE21H=3-3
Type
Single Phase, 15 to 20 A, Tether Float
AC
120/208/240V
Current
15 to 20 A
Alert Output
Audio
Rated Voltage
120/208/240V AC
Dosing Schedule
Demand Dose
Intrinsic Safety
Not Specified Intrinsically Safe
Includes Reversing
Non-Reversing
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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 with a current range of 15 to 20 A. It features a demand dose dosing schedule, an audio alert output, and is non-reversing with tether float control. This panel is not specified as 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 a demand-dose wastewater or effluent system. It alternates pump operation to balance wear and provides an audio alert for high-level alarms. Common applications include sewage lift stations, commercial sump pits, and municipal pumping systems.

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

The panel operates on 120/208/240V AC single-phase power, handles 15 to 20 A, and uses a tether float for level sensing. It is non-reversing, features a demand dose dosing schedule, and includes an audio alert output. The panel is not specified as intrinsically safe. The manufacturer part number is AE21H=3-3.

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, we handle full logistics, customs clearance, and delivery to your site. Contact our team for a quote and lead time. We source and deliver this panel to any country.

How to install the LIBERTY PUMPS Duplex Control Panel?

Installation should follow local electrical codes and the manufacturer's manual. Mount the panel in a dry, accessible location. Connect incoming 120/208/240V AC single-phase power to the designated terminals. Wire the two pumps and tether float switches per the wiring diagram. Test the audio alert and demand dose sequence before commissioning.

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.

You might also need

Pump Accessories →Valves & Regulation →Motors & Drives →All Products →

Similar products

Matched by specification & description
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE21H=3). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE21H=3). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE24HC=3-3). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE24HC=3-3). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE24H=3-3). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE24H=3-3). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE21H=4-3). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Visual; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE21H=4-3). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Visual; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE21H=4-5). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Visual; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE21H=4-5). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Visual; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE24H=4-5). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE24H=4-5). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.

More from LIBERTY PUMPS

View all LIBERTY PUMPS parts →
LIBERTY PUMPS Duplex Control Panel: Duplex, 3, 575V AC, 6 to 10 A, Tether Float, 4 Switches Included (MPN AE54=4-405-5). Key specifications — Current: 6 to 10 A; Rated Voltage: 575V AC; Alert Output: Visual; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
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). Key specifications — Current: 6 to 10 A; Rated Voltage: 575V AC; Alert Output: Visual; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS Simplex Control Panel: Simplex, 3, 208/240/480V AC, 9 to 14 A, Tether Float, Plastic (MPN SX34=3-511-5). Key specifications — Current: 9 to 14 A; Rated Voltage: 208/240/480V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Simplex Control Panel: Simplex, 3, 208/240/480V AC, 9 to 14 A, Tether Float, Plastic (MPN SX34=3-511-5). Key specifications — Current: 9 to 14 A; Rated Voltage: 208/240/480V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS Simplex Control Panel: Simplex, 3, 575V AC, 1.6 to 2.5 A, Tether Float, Plastic, 4X (MPN SX54=3-121). Key specifications — Current: 1.6 to 2.5 A; Rated Voltage: 575V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Simplex Control Panel: Simplex, 3, 575V AC, 1.6 to 2.5 A, Tether Float, Plastic, 4X (MPN SX54=3-121). Key specifications — Current: 1.6 to 2.5 A; Rated Voltage: 575V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS Duplex Control Panel: Duplex, 3, 575V AC, 6 to 10 A, Tether Float, 4 Switches Included (MPN AE54=4-405). Key specifications — Current: 6 to 10 A; Rated Voltage: 575V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Duplex Control Panel: Duplex, 3, 575V AC, 6 to 10 A, Tether Float, 4 Switches Included (MPN AE54=4-405). Key specifications — Current: 6 to 10 A; Rated Voltage: 575V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE21H=3-5). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Visual; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN AE21H=3-5). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Visual; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS Simplex Control Panel: Simplex, 3, 200V/230V, 18.5 A, Tether Float, Plastic, Outdoor (MPN SX24HS1=3-3). Key specifications — Current: 18.5 A; Rated Voltage: 200V; 230V; Alert Output: Visual; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Simplex Control Panel: Simplex, 3, 200V/230V, 18.5 A, Tether Float, Plastic, Outdoor (MPN SX24HS1=3-3). Key specifications — Current: 18.5 A; Rated Voltage: 200V; 230V; Alert Output: Visual; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS Simplex Control Panel: Simplex, Single Phase, 120/208/240V AC, 0 to 14.9 A, Plastic, 1 (MPN SXL21=3-5). Key specifications — Current: 0 to 14.9 A; Rated Voltage: 120/208/240V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Simplex Control Panel: Simplex, Single Phase, 120/208/240V AC, 0 to 14.9 A, Plastic, 1 (MPN SXL21=3-5). Key specifications — Current: 0 to 14.9 A; Rated Voltage: 120/208/240V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN IPD-24HC). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.
LIBERTY PUMPS
LIBERTY PUMPS Duplex Control Panel: Duplex, Single Phase, 120/208/240V AC, 15 to 20 A, Tether Float (MPN IPD-24HC). Key specifications — Current: 15 to 20 A; Rated Voltage: 120/208/240V AC; Alert Output: Audio; Intrinsic Safety: Not Specified Intrinsically Safe; Includes Reversing: Non-Reversing; Dosing Schedule: Demand Dose; Brand: LIBERTY PUMPS.