Watt & Sea Pack Cruising 300W hydrogenerator, 970 mm
DESCRIPTION
DESCRIPTION
An input of energy up to 300 W (24 Amps in 12 V), for more comfort in the respect of the environment!
The Cruising 300 is usually recommended for boats measuring up to 35 feet.
Available in two lengths in order to optimize the immersion of the propeller depending on the place chosen for the fitting.
Ideal on boats sailing generally from 4 to 6 knots, and consuming around 8 Amps (12 V installation).
Delivered as standard with the 240 mm diameter propeller (output 8 Amps at 5.2 knots), it will produce even more with the 280 mm propeller (8 Amps at 4.5 knots).
Mobile application: converter equipped with a Bluetooth chip allowing the reading of charge data, various technical information, as well as the adjustment of voltages if necessary (Lithium battery).
Available in 2 versions: short (Ref. PK-610-300), long (Ref. PK-970-300).
- Output 100 W from 5 knots
- Light: 6.3 kg
- Two years warranty
- Quiet
- Hydrodynamic design
FEATURES
FEATURES
Which propeller to choose? The propeller supplied as standard with the Cruising 300 hydrogenerator pack is the 240 mm model, which produces 8 Amps at 5 knots. It is the most universal model, guaranteeing energy self-sufficiency on most boats with negligible drag. To produce at slower speeds, the 280 mm diameter is more efficient. To produce at higher speeds and minimize drag, the 200 mm diameter is available, as well as the 200 mm with manual variable pitch for applications like the Mini 6.50.
TECHNICAL INFORMATION
TECHNICAL INFORMATION
| Hydrogenerator | Nominal power 300 W |
| Converter | Max output power 600 W. 12 Vcc or 24 Vcc autodetected. Mobile application. 48 V in option. Input for solar panel 7.5-50 Vcc / 14 Amps. |
| Holding bracket | With cam-cleat. Locking pin. |
| Aluminium leg | 610 mm or 970 mm |
| Propeller | 240 mm |
| Other accessories supplied | 1 low friction ring with its splicing rope. 2 stainless steel forks to be fastened on the transom. 1 hydrogenerator connector. 3 battery connectors (2 positive and 1 negative). 2 pre-assembled plugs and their cables. |
| Output at 5 knots | 8 Amps in 12 Vcc (100 W) with the 240 mm propeller. 10 Amps in 12 Vcc (120 W) with the optional 280 mm propeller. |
| Maximum using speed | 11 knots with the 240 mm propeller. 13 knots with the optional 200 mm propeller. |
| Compatible batteries | Lead battery. Lithium. Other: contact us. |
| Weight - Hydrogenerator | 7.05 kg or 8.0 kg depending on the length |
| Weight - Converter | 1.4 kg |
| Three-phase cable length | 4 meters |
| Pre-assembled plugs cable | 1 meter of cable |
KNOWLEDGE BASE
KNOWLEDGE BASE
At what speed can I use a Watt & Sea hydrogenerator?
It starts producing as soon as your boat is sailing. From steady speeds of 4-5 knots, onboard energy requirements are typically met.
What drag does the Watt & Sea hydrogenerator generate?
The drag generated is very low compared to the sailboat's overall drag, with no measurable impact on sailing speed.
How can the right hydrogenerator model be chosen?
For boats under 35 feet a 300W model typically covers needs; boats over 35 feet prefer 600W models. Selection depends on equipment and consumption. Leg length must account for rudder offset (10-20 cm), vertical installation, and propeller submersion (20-30 cm even when heeled).
How should a hydrogenerator be maintained?
Service every 2 years or 10,000 miles. Regularly remove the propeller for shaft cleaning, inspect cables at mast outlets, and check plugs for corrosion.
When should a revision occur?
Every 10,000 miles or every 2 years, through your reseller.
Where can I purchase a Watt & Sea hydrogenerator?
Through the reseller network. Visit the reseller page to find professionals who answer installation and product questions.
How long does delivery take?
Generally 48 hours in France or abroad (depending on the country).
What force is exerted during sailing?
The maximum theoretical force on the mounts is approximately 300 kg due to lever-arm effects.
Can I install it myself?
It is not advisable. Professional installation ensures quality and prevents suboptimal production, device damage, or electrical/mechanical risks.
Can I repaint the hydrogenerator?
Yes. Use polyurethane or epoxy products following professional guidance, or apply stickers.
Is there a fuse system for impact protection?
The supplied pin maintains submersion but cannot guarantee a fuse function upon impact with a floating object.
Can an angled transom accommodate installation?
Yes, using the universal bracket FU-03, which adjusts for transom angles up to +/-45 degrees.
Can the hydrogenerator stay submerged while reversing?
Except for 600W POD models, this is inadvisable as the supports and articulation are not designed for it and may be damaged.
Do I need an electrical fuse?
Yes. Every battery bank must be protected by a fuse or a 50 Amp thermal circuit breaker.
How long does battery charging take?
Customers typically use the product 8 to 12 hours a day to ensure autonomy. Consult the product sheets for production curves.
What if my cable exceeds the recommended length?
Below 10 meters: minimum 3 x 1.5 mm2 cross-section. Above 10 meters: minimum 3 x 2.5 mm2. The MPPT regulator adapts to line loss.
What solar panels are compatible?
Panels with minimum 7.5V, maximum 50V, and maximum 14 Amps. The solar panel is only recognized by the converter once the hydrogenerator is turned off.
How do I connect the three-phase wires?
The three-phase wires have no specific order: they can be connected in any direction.
Can I charge both 12V and 24V batteries?
No. Both outputs must connect to battery banks of identical voltage.
Can Lithium-Ion batteries be used?
Yes, typically without adjustments. Verify recommended voltages are not below standard settings (14.3V/28.6V). Voltage adjustment software is available.
Can multiple battery banks be charged?
Yes. The converter has 2 outputs for 2 independent banks at identical voltage (12V or 24V).
Can production stop without raising the hydrogenerator?
Yes, using the ON/OFF relay with a suitable resistor. The device runs quietly at idle.
Can it operate while the engine runs?
No. The converter detects full batteries and enters freewheel mode. Lifting during engine operation is preferable, or install an ON/OFF relay with resistor.
Does it convert three-phase AC to DC?
Yes. The converter/regulator transforms three-phase AC and adjusts the voltage to charge the batteries.
Why must the converter be mounted vertically?
Vertical installation promotes natural convection cooling along the fins. Horizontal installation risks overheating and damage.