HOBBYWING XRotor Pro 40A 6S BLDC
Series: HOBBYWING ESCs for drone motors
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
The Hobbywing XRotor Pro 40A (6S, BLDC) is a single-motor ESC from the Chinese manufacturer for multicopters of the 550 class, that is frames of around 550 mm. It drives one motor, belongs to the mid class and weighs 45 g.
The continuous current is 40 A and the peak current 60 A; the controller holds the peak only briefly, and sizing follows the 40 A. The voltage window runs from 3S to 6S, i.e. up to 25.2 V fully charged. There are two hardware revisions for weight: 45 g for version B, 50 g for version A. The designation BLDC in the name sets the controller apart from the FOC controllers of the same maker's H series, which regulate sinusoidally and run more quietly. OneShot is not supported, so the flight controller has to output a signal the ESC understands.
Frame and law: depending on payload, a multicopter of the 550 class falls into EU class C2 (under 4 kg) or C3 (under 25 kg); the take-off mass of the whole machine decides. On 6S an ampere-hour of battery is 22.2 Wh; the IATA limit of 100 Wh lies at about 4.5 Ah, the 160 Wh limit at about 7.2 Ah.
For selection: the motor's continuous current plus reserve stays below 40 A. When replacing, mind hardware version A or B, as weight and construction differ. Wear shows as heat discolouration, aged capacitors at the battery input and cracks at the solder joints of motor and battery leads; a controller that gets hot after load usually has too little reserve.
Technical data
Other data
| Cell count (S) | 3-6Scorrect |
|---|---|
| Charging channels | 1correct |
| Continuous current (A) | 40 Acorrect |
| Integrated propulsion unit | nocorrect |
| Peak current (A) | 60 Acorrect |
| Weight (g) | 45correct |
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
Request a quote →
We ask the suppliers and come back with price and lead time.
Request spare parts →
This page carries 6 individual figures for this model. What we cannot document is not here — we leave gaps open rather than estimate them.
Missing a figure you were looking for? Report it →
Know this machine better? Have a photo, a manual, or know that a figure is wrong? Add it to the register →
