Product overview
The Scorpion HK5-4030-355kv is a brushless motor intended for very light and smooth flying in 550–700 size helicopters using 12s–14s LiPo batteries. Its supplied configuration comprises one HK5-4030 BLDC motor, three female 4mm connectors, three heat-shrink pieces and a hardware/accessory pack. The motor combines an internal fan with an external centrifugal fan for cooling. Its electromagnetic construction uses a 40 mm diameter, 30 mm thick stator, with 12 stator arms, 10 stator poles, an 8T Delta winding and 1.12mm motor wire.
Installation space must accommodate a 49.5mm x 62.0mm motor body and a 5.98mm x 38mm external shaft; motor weight is 420.0 grams. The 355KV RPM/Volt motor has continuous ratings of 65 amps and 2900 watts. Peak ratings rise to 132A and 6900 watts, each limited to two seconds, so these figures represent brief power demands rather than continuous output. The specified LiPo range is 12s–14s, with higher cell counts possible when accompanied by an appropriate gear ratio adjustment.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | Scorpion HK5-4030-355kv |
| Intended application | 550 - 700 size helicopters; other applications requiring up to 6900w of powerFor very light and smooth flying; 12s-14s LiPo. |
| Cooling architecture | Internal fan combined with an external centrifugal fan |
| Motor Kv | 355KV RPM/Volt |
| Weight | 420.0 Grams ( 14.81oz) |
| Motor body dimensions | 49.5mm x 62.0mm (1.95" x 2.44") |
| External shaft dimensions | 5.98mm x 38mm (0.235" x 1.50") |
| Continuous current | 65 AmpsContinuous operation. |
| Continuous power | 2900 WattsContinuous operation. |
| Peak current | 132A (2 seconds)2 seconds. |
| Peak power | 6900 Watts (2 seconds)2 seconds. |
| Maximum LiPo cell count | 12s-14sHigher cell count possible with appropriate gear ratio adjustment. |
| Stator diameter | 40 mm (1.57 in) |
| Stator thickness | 30 mm (1.18 in) |
| Number of stator arms | 12 |
| Number of stator poles | 10 |
| Motor winding | 8T Delta |
| Motor wire | 1.12mm |
| Higher cell count provision | Higher cell count possibleAppropriate gear ratio adjustment. |
| Supplied configuration | 1 x HK5-4030 BLDC Motor; 3 x Female 4mm Connectors; 3 x Heat Shrink; 1 x Hardware / Accessory PackIncluded in the box. |
| Weight including packaging | 400gIncluding packaging. |
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