Product overview
HOBBYWING’s XRotor Pro 40A 6S BLDC is a brushless electronic speed controller intended for 550 Class Multirotors. Procurement therefore concerns a propulsion-control component rather than a complete aircraft or airframe kit. Its physical construction combines a solid plastic case with an aluminum folded-fin heat sink and a heat-conductive slotted structure. The manufacturer describes installation inside a carbon-fiber tube with a 23mm internal diameter. That integration statement should be checked against the selected version, its published dimensions and the planned installation.
Version A, product number 30902042, and Version B, product number 30902041. Both specify 40A continuous and 60A peak current, 3-6S LiPo input and no BEC output. Their listed dimensions, weights and output-wire configurations differ, making version selection material to installation. Both support throttle calibration, stick programming, DEO and timing; OneShot mode, light color and the motor-rotation feature are listed as unsupported. Automatic timing and preset parameters simplify setup according to the manufacturer, while the stated response and efficiency benefits have no quantified test results.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer | HOBBYWING |
| Product and versions | XRotor Pro 40A 6S BLDC; Version A and Version BTwo versions are listed on the current page. |
| Product numbers | Version A: 30902042; Version B: 30902041Numbers follow the Version A, Version B order in the published table. |
| Product purpose | Brushless drone electronic speed controllerESC component classification; a speed controller rather than a flight platform or airframe kit. |
| Continuous and peak current | 40A continuous / 60A peakBoth versions; values are listed as continuous/peak current. |
| Battery | 3-6S LiPoBoth versions; specified battery chemistry and cell-count range. |
| BEC output | NoBoth versions; no BEC output is listed. |
| Input wires | One red 16AWG 500mm wire and one black 16AWG 500mm wireBoth versions show the same input-wire specification; the Version B entry has a trailing markup fragment. |
| Version A output wires | Three black 16AWG 75mm wiresVersion A; interpreted in the published Input Wires, Output Wires, Input Connectors, Output Connectors order. |
| Version B output wires | NoVersion B; the supplied table lists No for output wires. |
| Input connectors | NoBoth versions; interpreted using the published wire and connector column order. |
| Output connectors | 3.5mm gold connectors, femaleBoth versions; connector specification. |
| Version A size | 66.0 × 21.8 × 11.0mmVersion A; dimensions, with no measurement method stated. |
| Version A weight | 50gVersion A; weight, with no inclusion or measurement conditions stated. |
| Version B size | 73.5 × 21.8 × 11.0mmVersion B; dimensions, with no measurement method stated. |
| Version B weight | 45gVersion B; weight, with no inclusion or measurement conditions stated. |
| Throttle range calibration | SupportedBoth versions; status follows the seven feature headings in their published order. |
| Stick programming | SupportedBoth versions; status follows the seven feature headings in their published order. |
| DEO | Driving Efficiency Optimization supportedBoth versions; manufacturer describes intended efficiency, temperature, flight-duration and throttle-linearity benefits without quantified test results. |
| OneShot mode | Not supportedBoth versions; status follows the seven feature headings in their published order. |
| Timing | Supported; automatic timing adjustment describedBoth versions; the overview also describes automatic timing adjustment. |
| Light color | Not supportedBoth versions; status follows the seven feature headings in their published order. |
| Motor rotation feature | Not supportedBoth versions; this is the published feature status, not a claim that the ESC cannot drive a motor. |
| Applications | 550 Class MultirotorsBoth versions. |
| Enclosure | Solid plastic case |
| Integration space | Carbon-fiber tube with 23mm internal diameterManufacturer states placement in a carbon-fiber tube with this internal diameter; confirm fit for the selected version and installation. |
| Cooling architecture | Aluminum folded-fin heat sink with a heat-conductive slotted structure |
| Throttle-response program | Special core program intended for rapid throttle responseManufacturer describes the program's intended response behavior. |
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