5.2V-12V ZTW UBEC 30A HV External Switching BEC 3S-18S Helicopter ESC Controller
The ZTW UBEC 30A HV is a high-current external switching BEC with 3-18S main and 1-2S backup inputs, delivering 30A continuous and 60A peak. Selectable 5.2V/6V/7.4V/8.4V/9V/12V output via DIP switch, 8-channel parallel outputs, metal housing, external switch, and full protection
Professional High-Efficiency UBEC Series
ZTW UBEC 30A HV External Switching BEC 3-18S Dual Input 5.2V-12V Adjustable 60A Peak with 8-Channel Output for UAV, VTOL, Helicopter and Large-Scale Aircraft
30A Continuous / 60A Peak for High-Demand Platforms
The UBEC 30A HV delivers 30A continuous and up to 60A peak output current, powering banks of high-torque digital servos on large-scale helicopters, VTOL tilt-rotors, and industrial UAVs where multiple actuators draw current simultaneously.
3-18S Main Input with 1-2S Backup
The main input accepts 3S to 18S LiPo (9-80V), covering everything from 3S models to high-voltage 18S industrial platforms. A separate 1-2S backup input automatically takes over if the main battery fails, keeping receivers and servos alive for a controlled landing or safe shutdown.
Six Selectable Output Voltages
DIP-switch selectable output at 5.2V, 6V, 7.4V, 8.4V, 9V, or 12V supports standard and high-voltage servos, flight controllers, gimbals, lights, and custom industrial electronics from a single unit.
8-Channel Parallel Outputs
Eight JR-style output connectors can be used independently or in parallel for higher current distribution, eliminating the need for Y-harnesses and providing clean power to receivers, gyros, and up to four servos directly.
Metal Housing with Thermal & EMI Protection
The aluminum-alloy housing dissipates heat rapidly under sustained high loads and shields sensitive electronics from electromagnetic interference — essential for UAVs and VTOL aircraft carrying video and telemetry systems.
Comprehensive Protection Suite
Built-in over-current, over-temperature, low-voltage, output short-circuit, and output anti-backflow protection safeguard both the BEC and connected equipment. An external power switch and tri-color LED (red=main, blue=backup, green=output) provide at-a-glance status.
Designed for Professional & Industrial Use
With dual redundant inputs, 80V max voltage, 60A peak capability, and rugged metal construction, the UBEC 30A HV is equally suited to large-scale RC helicopters, commercial UAVs, VTOL platforms, and ground-based robotic systems demanding reliable servo and electronics power.


Technical Specifications
| Specifications | UBEC 8A | UBEC 30A |
|---|---|---|
| Continuous Current | 8A | 30A |
| Burst Current | 15A | 50A |
| Input Voltage | 2-8S LiPo | Main: 3-18S LiPo / Backup: 1-2S LiPo |
| Output Voltage | 5V / 6V / 7.4V / 8.4V Adjustable | 5.2V / 6V / 7.4V / 8.4V / 9V / 12V Adjustable |
| Dual Input | No | Yes (Main + Backup) |
| Input Wire | 22AWG | 16AWG (Main) / 16AWG (Backup) |
| Output Wire | 60AWG JR | 100AWG JR × 4 |
| Size (L×W×H) | 50×20×7mm | 55×41×15mm |
| Weight | 14g | 75g |