Description
Kasco Marine 3400HD 3/4 HP 208-240V De-Icer for Docks, Boats & Ice Prevention
The Kasco Marine 3400HD De-Icer is a heavy-duty 3/4 HP, 208-240V ice prevention system designed to maintain open water around docks, boats, piers, marinas, and other in-water structures during freezing conditions. By circulating warmer water from below the surface upward, the 3400HD helps reduce ice buildup and protect waterfront property from damage caused by ice expansion, lifting, and jacking.
Producing 37 lb of thrust, the 3400HD provides strong water movement for reliable de-icing in demanding winter conditions. Its stainless steel construction, sacrificial zinc anode protection, long-life bearings, and oil-filled motor are designed for dependable operation in freshwater, saltwater, and other corrosive environments.
Electrical requirement: The 3400HD operates on 208-240V single-phase power and requires appropriate electrical wiring by a qualified electrician. Looking for the standard 120V version? View the Kasco 3400D De-Icer.
Flexible mounting options: Suspend the 3400HD using the included 20 ft mooring lines, or pair it with an optional Kasco dock mount or horizontal float for greater control over positioning and water flow.
Features & Benefits
Features & Benefits
- 3/4 HP de-icer designed for demanding winter ice prevention applications
- Produces 37 lb of thrust for strong water movement and circulation
- Helps protect docks, piers, boats, marinas, and other in-water property
- Moves warmer bottom water toward the surface to help maintain open water
- 208-240V single-phase operation
- Can be suspended vertically or angled depending on the installation
- Compatible with optional Kasco dock mounts and horizontal float systems
- Compatible with the optional C-220 control panel for timed operation
- Long-life top and bottom ball bearings
- Oil-filled motor with internal mechanical and external lip seals
- Flood-oil lubrication supports effective heat dissipation
- Stainless steel construction for corrosion resistance
- Sacrificial zinc anode protects external metal components
- Suitable for freshwater and saltwater applications
- Low-maintenance design
- ETL listed to UL and CSA safety standards
- Backed by a 3-year warranty
- Made in the U.S.A.
How It Works & Installation
How the Kasco 3400HD De-Icer Works
The 3400HD circulates warmer water from below the surface upward into colder surface water. This continuous movement helps reduce ice formation and maintain an open-water area around docks, boats, piers, and other waterfront structures.
De-icer coverage varies with water depth, air temperature, mounting angle, water movement, and site conditions. Use the Kasco De-Icer Sizing Chart as a general guide when selecting and positioning a de-icer.
Suspended Installation
The de-icer includes two 20 ft suspension ropes, allowing you to suspend the unit directly in the water.
Adjustable Dock Mounting
Optional Universal and Industrial Dock Mounts let you adjust the de-icer angle and operating depth for different applications.
Horizontal Float Option
An optional Horizontal Float provides another installation method when you prefer to position the de-icer away from a dock or structure.
Timed Control
The optional C-220 control panel is designed for 208-240V units and provides timer-based control of de-icer operation.
What's Included
- Kasco 3400HD 3/4 HP De-Icer motor unit
- Two 20 ft suspension ropes
- Power cord in the selected length
- UL, CSA, and NEC-approved underwater-rated cable
Specifications
Kasco Marine De-Icer Specifications
Compare Kasco Marine De-Icer models and select the motor size, voltage, and cord length best suited to your installation. The 3400HD model shown on this page is highlighted below.
| Model | Motor | Cord Lengths | Voltage | Phase | Amps | Minimum Depth | Thrust |
|---|---|---|---|---|---|---|---|
| 2400D | 1/2 HP | 25, 50, 100, 150, 200 ft | 120V | 1 | 5.4 A | 4 ft | 31 lb |
| 3400D | 3/4 HP | 25, 50, 100, 150, 200 ft | 120V | 1 | 6.6 A | 4 ft | 37 lb |
| 3400HD | 3/4 HP | 50, 100, 150, 200, 250, 300, 400, 500 ft | 208-240V | 1 | 3.1 A | 4 ft | 37 lb |
| 4400D | 1 HP | 25, 50, 75, 100, 150, 200 ft | 120V | 1 | 9.1 A | 4 ft | 42 lb |
| 4400HD | 1 HP | 50, 100, 150, 200, 250, 300, 400, 500 ft | 208-240V | 1 | 4.5 A | 4 ft | 42 lb |
Models containing H indicate higher-voltage 208-240V de-icers.
View the Kasco Marine De-Icer Sizing Chart
View the Kasco Marine De-Icer User's Manual
Mounts, Controls & Accessories
De-Icer Mounting & Control Options
Customize the installation and operation of your Kasco 3400HD with optional mounting and control options.
Frequently Asked Questions
What Is the Kasco 3400HD Used For?
The 3400HD is designed to keep water open and help prevent ice damage around docks, boats, piers, marinas, and other in-water structures.
What Is the Warranty on This Unit?
The Kasco 3400HD comes with a 3-year warranty.
What Power Supply Does the 3400HD Require?
The 3400HD operates on 208-240V single-phase power and draws 3.1 amps.
What Is the Difference Between the 3400D and 3400HD?
Both models are 3/4 HP and produce 37 lb of thrust. The 3400D operates on 120V power, while the 3400HD is the higher-voltage 208-240V model.
What Is the Minimum Water Depth?
The 3400HD requires a minimum water depth of 4 ft.
Can the De-Icer Be Mounted to a Dock?
Yes. Optional Kasco Universal and Industrial Dock Mounts let you position and angle the unit from a dock or other structure.
Can the 3400HD Be Controlled Automatically?
Yes. The optional C-220 control panel provides timer-based control for compatible 208-240V units.
Can the 3400HD Be Used in Salt Water?
Yes. Stainless steel construction and a sacrificial zinc anode provide corrosion protection for saltwater and other corrosive environments.
How Much Thrust Does the 3400HD Produce?
The Kasco 3400HD produces 37 lb of thrust.
What Comes with the 3400HD?
The unit includes the 3400HD motor, two 20 ft suspension ropes, and the selected power cord.
