450 W-class marine wind generator, ~7 kg, carbon fibre rotor that starts at 2.2 m/s, patented automatic storm brake, wind-tunnel tested to 122 km/h. Supplied complete with the matched MPPT Hybrid Boost wind + solar controller. Choose 12, 24 or 48 V. Designed in Germany, built in Thailand, 24-month warranty.
Our price is the manufacturer's home-market RRP — what this gear sells for where it's made. Branded marine equipment in Thailand typically retails 15–90% above that, when prices are published at all. Ours doesn't.
The SilentShark S401 is the 2024-edition successor to the original Silentwind, redeveloped by the same German engineer with three priorities: safety, silence and output. It is a 450 W-class, three-blade permanent-magnet wind generator weighing only about 7 kg, with hand-laminated carbon fibre blades that start turning at 2.2 m/s and begin charging at 2.5 m/s — the light, shifty air of a sheltered anchorage that most turbines sleep through. A patented, fully automatic storm brake works independently of the controller, and the rotor has passed a 122 km/h wind-tunnel test.
| Rated power | 450 W at 13.5 m/s |
|---|---|
| Start-up wind speed | 2.2 m/s |
| Charging from | 2.5 m/s |
| Rotor diameter | 1.15 m, 3 blades |
| Blades | Carbon fibre reinforced epoxy (CfK), hand laminated, ~150 g each |
| Generator | Permanent magnet, 3-phase AC; double-bearing shaft |
| System voltage | 12 V, 24 V or 48 V DC (via included controller) |
| Weight | approx. 7 kg |
| Storm protection | Patented automatic storm brake (thermal, self-resetting) + electronic brake and stop switch on controller |
| Safety test | Wind tunnel, 122 km/h — passed |
| Mast | Stainless tube 48–50 mm OD, 2–2.5 mm wall |
| Warranty | 24 months (generator and controller) |
Every S401 ships with its matched SilentShark MPPT Hybrid Boost controller: wind and solar inputs in one fanless aluminium box, MPPT boost that converts low-wind voltage into usable charge, an LCD showing W, A, V, Ah and kWh, a battery temperature sensor and external stop-switch harness, and an electronic brake. Battery types: lead-acid, gel, AGM and lithium. Two switchable 10 A load outputs on 12 V and 24 V models (none on 48 V).
| Version | Controller | Max wind power | Max wind current | Solar input | Battery fuse |
|---|---|---|---|---|---|
| 12 V | WWS04-12-12 | 450 W | 32 A | 300 Wp / 20 A | 60 A |
| 24 V | WWS04-24-24 | 500 W | 25 A | 300 Wp / 10 A | 30 A |
| 48 V | WWS04-48-48 | 550 W | 12 A | 300 Wp / 6.25 A | 15 A |
Mount on a 48–50 mm stainless mast high enough that no crew can reach the rotor. Cable from generator to battery: 6 mm² at 12 V (up to 9 m), 2.5 mm² at 24 V and 48 V; fit the battery fuse listed above as close to the battery as possible. Add the noise damping flange and mast base bracket for the quietest installation, and pair with a Fullriver AGM house bank sized for your loads — we can specify the whole system.
Worldwide delivery. Price shown is for the goods; freight to your door anywhere in the world is quoted at cost and invoiced separately. In stock in Thailand — typically dispatched within 2–3 working days. Not sure which version you need? Email hello@drakemarine.com or WhatsApp +66 99 406 4680.
SilentShark wind generators are designed by the German engineer behind the original Silentwind and hand-built in Thailand. We are a SilentShark distributor: we hold the range for worldwide dispatch, we can commission a complete wind-plus-solar system with matched batteries and chargers, and we support what we sell. Every unit carries the manufacturer's 24-month warranty.
Free tools from our workshop — two minutes now saves a wrong order later.