Description
Engineered for Heavy-Lift UAV Propulsion
The LETUMOTOR 4214-380KV is a high-voltage brushless motor purpose-built for heavy-lift multi-rotor platforms. With a 42mm stator, 380V-rated high-voltage architecture, and precision-engineered 12N14P configuration, it delivers the consistent, efficient, and powerful thrust that agricultural spraying, cargo delivery, and industrial mapping drones demand.
Key Specifications
| Parameter | Value |
|---|---|
| Model | LETUMOTOR 4214-380KV |
| Motor Size | Ø49 x H34.7 mm |
| Stator Size | Ø42 x H14 mm |
| KV Rating | 380 |
| Rated Voltage | 380V / 8S LiPO (32V) |
| No-load Current | 2A (at 32V) |
| Internal Resistance | 65 mΩ |
| Motor Weight | 230g |
| Rated Output Power | 450W |
| Max Current | 57A |
| Max Power | 1824W (20s) |
| Max Thrust | 6170g |
| Configuration | 12N14P |
| Dynamic Balance | Precision Balanced |
| Bearings | Premium Sealed |
| Shaft Diameter | 6mm, M6 Thread |
| Shaft Length | 25.5mm |
| Prop Mount | 4x M4-Ø25.5mm |
| Motor Mount | 4x M4-Ø30mm |
| Winding Insulation | 220°C, Class H |
| Magnet Grade Temp | 180°C |
| Lead Spec | 14AWG |
| Lead Length | 500mm |
| Recommended ESC | 8S 60A+ |
| Recommended Propellers | HQ15x7x3 / HQ13x10x3 |
Key Performance Highlights
6170g Max Thrust: Exceptional lifting capacity for heavy-payload missions, with 450W rated output power for sustained, efficient operation.
380V High-Voltage Architecture: Designed for high-voltage power systems to minimize current loss, reduce wiring heat, and extend overall flight endurance.
12N14P Precision Configuration: High torque density and smooth rotation for stable, efficient, and responsive propulsion across the throttle range.
65mΩ Low Internal Resistance: Minimizes energy loss, improves efficiency, and reduces operating temperatures under heavy loads.
Engineered for Industrial Reliability
220°C Class H Winding Insulation: High-temperature enameled copper windings maintain stable performance under sustained heavy loads and demanding environmental conditions.
180°C Magnet Grade: High-grade magnets maintain consistent magnetic performance and resist demagnetization in high-heat flight environments.
Precision Dynamic Balance: Factory-balanced rotor minimizes vibration, improves flight stability, and extends airframe component life.
Premium Sealed Bearings: High-quality bearings deliver smooth, low-noise rotation and long service life.
Designed for Professional Integration
Standardized Mounting: 4x M4-Ø30mm motor mount and 4x M4-Ø25.5mm prop mount for broad compatibility with professional airframes.
14AWG 500mm Leads: Heavy-gauge, long-length motor leads provide clean, secure electrical connections and flexible installation.
6mm Shaft with M6 Thread: Precision steel shaft with threaded tip ensures reliable torque transfer and secure propeller locking.
Ideal Applications
Heavy-lift agricultural spraying and seeding drones
Cargo delivery and logistics UAVs
Industrial surveying and mapping platforms
Professional cinematography lifters
Coaxial and multi-rotor propulsion systems
Customization & Bulk Orders
We understand that off-the-shelf specs don’t fit every project.
Available customizations include:
Custom KV winding
Shaft diameter and length modifications
Mounting pattern adjustments
Lead length and connector type
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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