SLEIPNER E350 E-SERIES PROPORTIONAL TUNNEL THRUSTER | 48V | 350KG/770LB | HEAVY DUTY | E350/300TC-HD

SLEIPNER E350 E-SERIES PROPORTIONAL TUNNEL THRUSTER | 48V | 350KG/770LB | HEAVY DUTY | E350/300TC-HD

Command mega-yacht docking situations with unmatched commercial-grade endurance, zero performance fade, and raw 48V brushless power. The Sleipner E350/300TC-HD sits at the absolute pinnacle of DC-electric thruster technology. Engineered for large luxury vessels and commercial crafts from 62 to 98 feet, this Heavy Duty (HD) E-Series thruster delivers a staggering 350 kg (771 lbs) of continuous variable thrust inside an 11.81-inch (300mm) tunnel.

At the core of the E350 is a game-changing, 6-phase PMSM (Permanent Magnet Synchronous Motor) combined with a military-grade, DNV-type-approved gearleg. By eliminating standard brushes and moving to a 48V synchronous architecture, this thruster runs cooler, weighs up to 50% less, and offers industry-leading runtimes that traditional DC motors simply cannot match.

Key Features:

• Brushless PMSM & Hairpin Stator Tech: Utilizing cutting-edge electric motor technology adapted from high-performance electric vehicles, the E350 delivers up to 22 kW (29 HP) of pure output. No brushes mean near-infinite motor lifespan, zero carbon dust, and maximized energy efficiency.

• Heavy Duty (HD) DNV-Certified Gearleg: Built to meet strict commercial maritime standards, the gearhousing features ruggedized engineering designed to handle high-torque demands and continuous operation profiles without compromising structural integrity.

• Industry-Leading Runtimes & Active Cooling: Traditional DC thrusters overheat in minutes. The E350 features a built-in inverter and integrated active air cooling that stretches runtime significantly. If it approaches thermal limits, the smart system seamlessly derates power to keep you maneuvering without shutting off.

• True Proportional Control (S-Link™): Replaces basic on/off blasting with seamless variable speed control. Apply a whisper-quiet 15% thrust to counter light harbor drift, or use the intelligent "Hold" function to single-handedly pin the yacht against the dock while you step away to secure mooring lines.

• Ignition Protected (ISO 8846) & IPx7 Waterproof: Completely sealed against environmental hazards. The electrical drive housing is IPx7 rated, ensuring protection against wet bilge spaces, splashing water, or dangerous fuel vapor ignition.

• Twin Counter-Rotating Q-Prop™ Propellers: Outfitted with 5-blade, aerodynamically skewed composite propellers that rotate in opposite directions to pack maximum thrust into a compact 300mm footprint, while dropping cabin noise and hull vibration by up to 75%.

• Zero Maintenance Sealed Drive Lubrication: Equipped with a mechanical carbon/ceramic seal configuration that eliminates the need for periodic gear oil changes for the life of the unit.

Specifications:

• Part Number: E350/300TC-48V-HD

• Thrust Power: 350 kg (771 lbs) continuous at both 42V and 48V

• Motor Output: 22.00 kW (29 HP)

• Typical Vessel Size: 62 to 98 Feet (19 to 30 meters)

• System Voltage: 48V DC

• Current Consumption: 545 Amps

• Tunnel Inner Diameter: 300 mm (11.81'')

• Net Weight: 43 kg (94 lbs) — up to 50% lighter than traditional DC units in its class

• Control System: S-Link™ Digital CAN-Bus

• Certifications: DNV Type Approved, CE, UKCA

Pro Tip: The E350 is the optimal centerpiece for integration into modern Hybrid Power Centers (HPC) and smart yacht control networks. Because it features built-in galvanic isolation, it completely isolates the submerged drive leg from your vessel's 48V DC grid, protecting your hull against stray current and catastrophic galvanic corrosion.