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With the launch of the DriveMaster 40W EVO 48 V, Bellmarine is expanding its line of electric propulsion systems designed for sailboats and medium- to large-sized recreational vessels. This new model complements the liquid-cooled DriveMaster series?which already ranges from 3 to 20 kW?by adding a version capable of delivering up to 40 kW of intermittent power.
The Dutch engine manufacturer remains committed to a 48-volt architecture, a choice still favored by many shipyards seeking to avoid the greater constraints of high-voltage systems. This approach facilitates onboard integration, maintenance, and technical operations in a recreational boat setting.
A compact propulsion system for cruising sailboats and catamarans
The DriveMaster 40W EVO is based on a liquid-cooled electric motor paired with an IP65 vector controller. Bellmarine maintains a relatively simple technical philosophy here, with compact assemblies designed to minimize the space required in engine compartments.
The unit comes with mounting brackets, rubber mounts, and a built-in controller. The system also includes a 12-volt DC/DC converter for in-vehicle use, a precharge circuit, and a plug-and-play wiring harness designed to speed up installation.
This focus on simplicity directly meets the needs of shipyards specializing in electric propulsion. Available technical space is often limited on modern sailboats, particularly on catamarans, where each compartment must accommodate batteries, chargers, and onboard equipment.
The new 40W EVO thus retains a relatively compact design despite a rated power output increased to 35 kW and a claimed intermittent power output of 40 kW.
A 48-volt system that remains in high demand in the recreational boating industry
While several manufacturers are gradually switching to high-voltage systems, Bellmarine continues to rely on 48 V for a significant portion of its product line.
This technical choice offers several advantages for installers and construction sites. Regulatory requirements are less stringent than those for 400-volt or 800-volt systems. Maintenance procedures are also simplified, and the risks associated with on-board work are reduced.
This setup is particularly appealing to owners of cruising sailboats who want to switch to electric power without adding more complex systems.
The engine operates at 1,500 rpm here and can be paired with various DP280 mechanical gearboxes with ratios ranging from 1.59 to 5.01. This modular design makes it easier to adapt the propulsion system to the boat?s displacement and intended use.
Regeneration and Electric Maneuvers
Like the other models in the DriveMaster line, the 40W EVO can be equipped with an optional energy recovery kit. This system generates energy while sailing by using a propeller driven by the flow of water.
This feature is gradually becoming a key selling point for large cruising electric sailboats. It reduces reliance on the generator or shore power during long crossings.
The engine is also designed for applications requiring high maneuvering precision at low speeds. Electronic torque control enables smooth and highly responsive maneuvering in ports or narrow channels.
Bellmarine's Gradual Rise to Prominence
With this new 40W EVO version, Bellmarine continues to expand a product line that is already widely used on cruising sailboats, catamarans, and various electric conversion projects.
The Dutch company draws on extensive industrial experience in electric propulsion. This industrial background also explains its ability to offer solutions for higher power ratings, including for conventional in-line shaft installations.
The DriveMaster 40W EVO is the latest example of a trend that is now well established in the boating industry: many boatbuilders are seeking electrical systems that are technically simple, compact, and easy to maintain, rather than highly sophisticated architectures that are difficult to service far from technical support facilities.
