LETUMOTOR 4447 BLDC Motor for Agricultural & Heavy-Lift Drones - Brushless High Torque & IP54
LETUMOTOR 4447 BLDC Motor for Agricultural & Heavy-Lift Drones - Brushless High Torque & IP54 - Image 2
LETUMOTOR 4447 BLDC Motor for Agricultural & Heavy-Lift Drones - Brushless High Torque & IP54 - Image 3

LETUMOTOR 4447 BLDC Motor for Agricultural & Heavy-Lift Drones – Brushless High Torque & IP54

Compact Waterproof Propulsion for Marine Applications. The LETUMOTOR 4447-600KV is a fully sealed IP65 brushless thruster motor engineered for boat thrusters, USVs, and custom marine propulsion — 12N14P, 220°C winding, 695ZZ bearings, and ≤10mg dynamic balance for smooth, reliable, and efficient performance on the water.

  • Motor Size: Ø44 x H42.8 mm | Stator: Ø28 x H18 mm

  • KV: 600 | Rated Voltage: 15V

  • Weight: 225g | Shaft: 5mm, M4 Thread

  • Protection: IP65 | Winding: 220°C

  • Magnet: 150°C | Configuration: 12N14P

  • Bearings: 695ZZ | Dynamic Balance: ≤10mg

  • Prop Mount: M4 Thread | Motor Mount: 4x M3-D26

Category:

Description

LETUMOTOR 4447-600KV compact waterproof marine thruster motor — 44x42.8mm, 225g, 15V, 600KV, 12N14P, IP65 protection, 220°C winding, 150°C magnet, 695ZZ bearings, ≤10mg balance, 20AWG leads, 5mm shaft, designed for boat thrusters, USVs, and custom marine propulsion LETUMOTOR 4447-600KV waterproof marine thruster motor reliability engineering — IP65 sealed, 220°C winding, 150°C magnet, 12N14P, AC500V withstand voltage, 695ZZ bearings, ≤10mg dynamic balance, 225g, 15V, 600KV, 5mm shaft with M4 thread, 4xM3-D26 mount, 20AWG leads, with dimensioned mechanical drawing, built for boat thrusters and harsh marine environmentsLETUMOTOR 4447-600KV marine thruster motor compact integration and installation guide — 44x42.8mm, 28x18mm stator, 5mm shaft with M4 thread, 4xM3-D26 mounting pattern, 20AWG leads, 225g, 15V, 600KV, IP65 waterproof, 220°C winding, AC500V withstand voltage, 695ZZ bearings, ≤10mg balance, with dimensioned mechanical drawing and wiring notesLETUMOTOR 4447-600KV waterproof marine thruster motor overview — IP65 sealed, 600KV, 15V, 225g, 12N14P, 220°C winding, 150°C magnet, AC500V withstand, 695ZZ bearings, ≤10mg balance, 5mm shaft with M4 prop thread, 4xM3-D26 mount, 20AWG leads, compact 44x42.8mm design for boat thrusters, USVs, and custom marine propulsionLETUMOTOR 4447-600KV waterproof boat thruster motor complete technical specifications — 44x42.8mm, 28x18mm stator, 15V, 600KV, 225g, 12N14P, IP65, 220°C winding, 150°C magnet, AC500V withstand, 695ZZ bearings, ≤10mg balance, 5mm shaft with M4 thread, 4xM3-D26 mount, 20AWG leads, with dimensioned mechanical drawing

Reliable Power for Compact Marine Propulsion

The LETUMOTOR 4447-600KV is a compact, waterproof brushless motor purpose-built for boat thrusters, unmanned surface vessels, and custom marine propulsion systems. With an IP65 sealed structure, 12N14P high-pole configuration, and precision-balanced rotor, it delivers smooth, reliable, and efficient thrust in demanding marine environments where installation space, durability, and consistent output are critical.

Key Specifications

Parameter Value
Model LETUMOTOR 4447-600KV
Motor Type Boat Thruster Motor
Motor Size Ø44 x H42.8 mm
Stator Size Ø28 x H18 mm
KV Rating 600
Rated Voltage 15V
No-load Current 0.7A
Internal Resistance 112 mΩ
Motor Weight 225g
Configuration 12N14P
Dynamic Balance ≤10mg
Bearings 695ZZ
Shaft Diameter 5mm
Propeller Mount M4 Thread
Motor Mount 4x M3-D26
Winding Insulation 220°C
Magnet Grade Temp 150°C
Withstand Voltage AC500V
Protection Level IP65
Lead Wire 20AWG

Built for Harsh Marine Environments

  • IP65 Waterproof Protection: Sealed design guards against water jets and dust ingress for reliable operation in wet, exposed marine conditions.

  • AC500V Dielectric Withstand: Robust electrical insulation ensures safe and stable operation in conductive and high-moisture environments.

  • 220°C Winding & 150°C Magnet Grade: High-temperature materials maintain consistent performance and thermal stability under sustained marine loads.

  • ≤10mg Dynamic Balance: Precision-balanced rotor minimizes vibration and mechanical stress for smooth, quiet thrust and extended service life.

  • 695ZZ Precision Bearings: High-quality shielded bearings deliver low-friction rotation and long-term durability in demanding thruster applications.

Designed for Seamless Marine Integration

  • Compact Form Factor: Ø44 x 42.8mm body fits easily into space-constrained thruster housings and custom marine propulsion modules.

  • Standardized Mounting: 4x M3-D26 motor mount and M4 prop thread for fast, reliable installation and broad compatibility.

  • Clean Electrical Connection: 20AWG lead wires with clear color coding simplify wiring and system setup.

  • Lightweight 225g Design: High power-to-weight ratio supports responsive propulsion without adding unnecessary mass to the vessel.

Ideal Applications

  • Compact boat thrusters and trolling motors

  • Unmanned Surface Vessels (USVs)

  • Custom marine propulsion systems

  • Small electric watercraft

  • Marine robotics and automation projects

Customization & Bulk Orders

We understand that off-the-shelf specs don’t fit every marine project.

Available customizations include:

  • Custom KV winding

  • Shaft diameter and length modifications

  • Mounting pattern adjustments

  • Lead length and connector type (including waterproof connectors)

  • Bell housing color and laser-engraved logo

Contact our engineering team with your requirements for a tailored solution and volume pricing.

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