Side-Power SEP300/300TC 48V Electric Tunnel Thruster Kit — 300 kg (20 HP) High-Power

SEP300/300TC Thruster Kit 48V | 660LB Thrust

The SEP300/300TC Thruster Kit 48V by Sleipner (Side-Power) is one of the most powerful and advanced 48V bow thrusters available in the marine industry today. Designed for large yachts and commercial vessels, it combines massive thrust output, silent operation, and precise proportional speed control for unmatched maneuverability in all sea conditions.

With 300 kg (660 lb) of thrust and a 20HP motor, this system provides professional-grade performance for vessels requiring robust thrust power and reliability. The Side-Power proportional control system allows captains to select the exact amount of power needed — from delicate adjustments during docking to full force in strong crosswinds.

High Power Electric Thrusters

The SEP300/300TC belongs to the new generation of high power electric thrusters, engineered for vessels that demand maximum strength and energy efficiency. Its 48V DC configuration reduces current draw, minimizing battery stress while ensuring stable, consistent power delivery.

Equipped with a Twin Counter-Rotating (TC) propeller system, this thruster provides balanced thrust and directional precision with minimal noise or vibration. The S-Link™ digital communication system connects all control panels and accessories, allowing instant, reliable feedback and smoother control.

Safety and durability are top priorities in its design. The Intelligent Power Control (IPC) monitors electrical loads to prevent damage from overuse, while the sealed, maintenance-free motor housing ensures long-term reliability in demanding marine environments.

Electric Tunnel Thruster

As an advanced electric tunnel thruster, the SEP300/300TC ensures maximum hydrodynamic performance and installation flexibility. It fits seamlessly into both bow and stern tunnel applications, providing consistent thrust and quick response across the full power range.

Its high-efficiency motor and precision-engineered gear housing are optimized to deliver smooth water flow and minimal cavitation. Designed for use with Side-Power’s heavy-duty aluminum or GRP tunnels, it offers optimal strength and corrosion resistance.

When integrated with AutoMainswitches and remote control systems, it becomes a complete, intuitive propulsion solution — ideal for captains who value both power and precision.

Key Features & Benefits

• 48V proportional speed control for fine power adjustment.
• High thrust output of 300 kg (660 lb) for large yachts and commercial vessels.
• Counter-rotating propellers for balanced, vibration-free performance.
• S-Link™ communication system for smooth, plug-and-play installation.
• Intelligent Power Control (IPC) for automatic overload and thermal protection.
• Quiet, efficient operation with minimal cavitation and water resistance.
• Maintenance-free sealed motor for long service life.
• Compatible with bow and stern tunnel configurations.
• Two-year limited warranty supported by Sleipner reliability.

Performance & Efficiency

The SEP300/300TC is built for vessels that demand serious thrust power and silent precision. Its proportional speed system provides linear power response — ensuring maximum control even during delicate docking or side-current maneuvers.

The 48V system improves energy efficiency, extending battery life while reducing heat buildup and electrical stress. With its hydrodynamic propeller design and noise-reducing tunnel geometry, this model achieves high thrust at low RPMs, enhancing both comfort and performance.

Technical Specifications

Why Choose the SEP300/300TC 48V Bow Thruster

Powerful, efficient, and silent, the SEP300/300TC Thruster Kit 48V redefines what a high power electric thruster can deliver. Its combination of advanced technology, precise proportional control, and durable build quality makes it the ultimate electric tunnel thruster solution for professional-grade vessels.

Whether used for new yacht builds or retrofits, this 48V bow thruster ensures total maneuvering confidence, quiet operation, and long-lasting reliability — setting the benchmark for modern marine propulsion systems.