Product overview
The HOBBYWING XRotor H300A 24S FOC & BLDC V1 is a high-power electronic speed controller for heavy-lift UAVs and propulsion development and testing. It comes in BLDC and FOC variants. BLDC uses square-wave drive with plug-and-play operation, while FOC uses vector control and requires strict matching to motor parameters. Both accept 18–24S input over 54–104.4V. Their continuous-current rating is 120A with good heat dissipation, and maximum current is 300A for three seconds. The ambient temperature range is -20°C to 50°C.
The controller measures 213 × 71 × 61mm and weighs 1054.3g excluding wires. Its physical construction combines lightweight nano-coating with a one-piece aluminum-alloy enclosure. Stacked copper busbars, large PCB copper heat-spreading areas, conductive copper strips and enclosure fins provide its heat-dissipation structure. Protection is IP55, with IP67 available through customization. Shielded wiring and fully isolated throttle signals address interference. Both variants accept 5V/3.3V PWM signals at 50–500Hz, with pulse widths of 1100–1940μs. Neither variant provides propeller positioning.
BLDC permits throttle-range calibration and DEO switching; FOC has a fixed throttle range and no adjustable parameters. Both have a serial communication specification, and FOC also has CAN-bus communication with real-time flight-controller data exchange. Dual throttle is marked unsupported for both variants, alongside a separate optional PWM + CAN dual-throttle offering. Power-on self-test, electrical and throttle-signal-loss protections, and fault storage support operation and diagnosis. Firmware upgrades use DATALINK, USB LINK or CAN, with remote upgrading through a flight controller available as an option.
Specifications
| Specification | Value & conditions |
|---|---|
| Product name | XRotor H300A 24S FOC & BLDC V1 |
| Product purpose | High-power electronic speed controller for heavy-lift UAVs and UAV development and testing. |
| Model variants | BLDC: XRotor Pro-H300A-24S-BLDC-RTF-HW-H-V1; FOC: XRotor Pro-H300A-24S-FOC-RTF-HW-H-V1. |
| Voltage range | 18–24S (54–104.4V).Both BLDC and FOC variants. |
| Continuous current | 120A.Both variants; with good heat dissipation. |
| Maximum current | 300A.Both variants; for 3s. |
| Ambient temperature | -20°C to 50°C.Both BLDC and FOC variants. |
| Motor compatibility | BLDC: good compatibility; FOC: strict matching to motor parameters required. |
| Propeller positioning | None.Both BLDC and FOC variants. |
| Ingress protection | IP55; customizable to IP67.Both variants; IP67 requires customization. |
| Weight | 1054.3g.Both variants; excluding wires. |
| Dimensions | 213 × 71 × 61mm.Both BLDC and FOC variants. |
| Communication interface | Serial communication.Both BLDC and FOC variants. |
| Isolation | Full isolation.Both BLDC and FOC variants. |
| PWM signal level | 5V/3.3V.Both BLDC and FOC variants. |
| PWM frequency | 50–500Hz.Both BLDC and FOC variants. |
| PWM pulse width | 1100–1940μs.Both BLDC and FOC variants. |
| Throttle range calibration | BLDC: calibratable; FOC: fixed and not calibratable. |
| Parameter options | BLDC: DEO on/off; FOC: parameters cannot be adjusted. |
| Dual throttle support | Not supported.Both BLDC and FOC variants. |
| Drive technologies | BLDC uses square-wave drive with plug-and-play operation. FOC uses vector control with linear throttle, precise control, kinetic-energy recovery, high efficiency, low temperature, fast response, low noise and low interference. |
| Enclosure construction | Lightweight nano-coating and a one-piece aluminum-alloy enclosure. |
| Thermal architecture | Stacked copper busbars, large PCB copper heat-spreading areas, heat-conducting copper strips and large aluminum-alloy enclosure fins. |
| Protection and fault recording | Power-on self-test, undervoltage, overvoltage, overcurrent and throttle-signal-loss protection, unlimited restart capability and onboard fault storage. |
| Interference control | Shielded wiring and fully isolated throttle signals. |
| PWM and CAN dual throttle | Optional PWM + CAN dual throttle.Optional equipment. |
| Variant communication capabilities | BLDC: serial communication. FOC: CAN-bus communication with real-time flight-controller data exchange. |
| Communication logging | CAN information communication with a black-box function.Used with DATALINK. |
| Firmware upgrades | Online firmware upgrades through DATALINK or USB LINK, remote firmware upgrades over CAN, and optional remote upgrading through a flight controller.DATALINK or USB LINK connection for online upgrades; flight-controller remote upgrading is optional. |
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