6S-28S ZTW 300 Amp ESC FOC ZX 300A Large Scale UAV ESC Speed Controller

ZTW ZX 300A FOC ESC 6-28S Ultra-High-Power Industrial ESC for eVTOL, Heavy-Lift and Large-Scale UAV

Series Flagship: 300A FOC at Up to 28S

The ZX 300A is the most powerful ESC in the ZX FOC series, supporting 6-28S LiPo and delivering 120A continuous / 300A burst — engineered for large eVTOL aircraft, heavy-lift cargo drones, and industrial UAV platforms requiring extreme propulsion with maximum efficiency.

Up to ~35kW Peak with FOC Efficiency

At 28S (~118V) and 300A peak, this ESC can deliver over 35kW per unit. Field-oriented control optimizes motor current vectors in real time, minimizing losses and heat at extreme power levels for the most demanding commercial applications.

Massive Heatsink Enclosure

The 188×95×39.5mm, 1119g aluminum case provides exceptional thermal mass and dissipation area, managing the heat generated by sustained high-current, high-voltage FOC operation without active cooling in most configurations.

8-Gauge Extended Power Wiring

8-gauge power wires (1145mm) and motor wires (150mm) handle extreme currents with minimal voltage drop, while the extended power lead accommodates large airframe layouts with remote battery placement common in eVTOL and cargo drone designs.

Shielded Signal Cable for High-Noise Environments

The 26AWG shielded signal cable (1060mm) ensures clean control signal transmission in electrically dense high-power airframes, preventing interference that could cause motor desynchronization at critical flight moments.

Parameterless Programming & UART/CAN Telemetry

Auto motor parameter identification enables rapid OEM integration even with the largest motors, while customizable UART and CAN bus interfaces deliver comprehensive real-time telemetry for flight controller integration and fleet health monitoring.

Splash-Proof & Firmware Upgradeable

Splash-proof construction and field-upgradable firmware ensure the ZX 300A delivers reliable, future-proof performance for the most demanding commercial and industrial FOC propulsion applications.

Technical Specifications