Side-Power SEP300/300TC 48V Tunnel Bow Thruster (Proportional, 300 mm)

The SEP300/300TC is a high-performance 48V bow thruster designed for large yachts and demanding conditions. With its sealed gearleg, dual five-blade propellers, and optimized hydrodynamic design, it provides unmatched maneuverability and control.

Engineered by Side-Power, this thruster delivers superior thrust with quiet, vibration-free operation. Its 48-volt system offers outstanding energy efficiency, making it a perfect choice for modern vessels that require reliable, long-duration performance.

High Power Electric Thrusters

As part of Side-Power’s advanced lineup, the SEP300/300TC belongs to a new generation of high power electric thrusters. Designed for larger vessels, it delivers robust thrust while minimizing noise and wear.

Key advantages include:

• Sealed gearleg with lifetime lubrication.
• Counter-rotating 5-blade propellers for maximum thrust in compact tunnels.
• Intelligent Power Control (IPC) for smooth operation and extended motor life.
• Active monitoring of motor temperature and load for safe performance.

This thruster is powerful enough for yachts over 65 ft, offering confidence in strong winds, currents, and tight marina spaces.

Electric Powered Thrusters – Efficiency at Scale

The SEP300/300TC demonstrates how electric powered thrusters can rival hydraulic systems in both efficiency and reliability.

• 48V DC system provides stable, clean power.
• Compatible with modern battery banks and energy systems.
• Extended runtime without overheating, thanks to optimized motor cooling.
• Reduced maintenance requirements compared to hydraulic alternatives.

Technical Specifications

Data based on Side-Power’s high-thrust electric series. Performance may vary depending on installation depth and tunnel diameter.

Installation and Compatibility

The SEP300/300TC is engineered for flexible installation:

• Fits bow tunnels or stern tunnels depending on vessel needs.
• Requires S-Link™ cabling for integration with Side-Power controls.
• Available with multiple control panel options, including joystick or remote operation.

Use Cases and Applications

The SEP300/300TC 48V Bow Thruster is engineered for demanding conditions and larger vessels where maneuverability is critical. Its design and performance make it the right choice for a variety of scenarios:

• Large Motor Yachts: Delivers powerful thrust to handle windy marinas and narrow docking spaces.
• Sailing Yachts (65–90 ft): Provides precise low-speed control, making docking safer and easier for long-keel or heavy-displacement sailboats.
• Retrofit Projects: An excellent upgrade for vessels currently equipped with older on/off thrusters. The SEP system can be paired with S-Link™ controls for proportional, variable-speed performance.
• Electric & Hybrid-Powered Boats: The 48V system integrates seamlessly with modern energy solutions, offering efficient operation with reduced power loss.
• Commercial or Charter Vessels: Ensures reliable handling in heavy use environments where downtime must be minimized.

With its combination of high thrust, efficiency, and quiet operation, the SEP300/300TC is a versatile solution for captains who demand confidence and precision.

Accessories and Options

When purchasing this 48V bow thruster, consider adding:

• Bow or stern tunnels
• Side-Power control panels
• Radio remote controls (on/off only)
• AutoMainswitch or battery switch and fuses
• S-Link™ control cabling
• Ask us about an SEP Upgrade for existing on/off thrusters — we can help upgrade to proportional control for enhanced precision.

Why Choose the SEP300/300TC 48V Bow Thruster?

• Designed for large yachts and professional applications.
• Combines power and efficiency in a 48V DC system.
• Quiet, smooth, and reliable thanks to advanced propeller design.
• Low-maintenance system with sealed gearleg and IPC technology.
• Fully supported by Side-Power’s global service network.