SX80 external stern thruster 12V

The SX80 external stern thruster 12V (item code SX80/185T-12V) is an externally mounted Sleipner stern thruster for boats up to 48 ft with twin stern drives. It delivers 80–96 kg of thrust, and special cowls divert the water flow past the stern drive legs. The unit is delivered pre-assembled, wired and sealed in a waterproof box, requiring only a small hole in the transom for power and control cables.

Key features

• Hydrodynamic shape and short flow channel for minimal water resistance at speed
• External motor placement reduces noise emission by about 80%, avoids border cavitation and gives more efficient water cooling for longer run time per cycle
• Ignition protected as standard – suitable for petrol-powered boats
• Q-PROP™ five-bladed skew twin propellers for reduced noise
• Patented intelligent power control: minimal delay between drive directions, solenoid monitoring and automatic stop on solenoid lock-in
• Overheat protection with automatic shut-off
• Galvanic separation of immersed parts from the onboard electrical system
• Sealed, lifetime-lubricated gearleg with ceramic/carbon mechanical seal
• Analog control with colour-coded plug-and-play signal cables

Technical data

• Power supply: 12V DC (nominal 10.5V DC)
• Power output: 4.4kW / 5.9hp
• Thrust: 96kg / 212lbs at 12V; 80kg / 176lbs at 10.5V
• Current consumption: 530A; recommended fuse: ANL 400
• Minimum battery CCA: 550 (DIN) / 1045 (SAE) / 940 (EN)
• Duty cycle: S2 motor, 2–3 min at 20°C ambient
• Tunnel internal diameter: 185mm; minimum water depth: 185mm
• Dimensions (H × L × W): 692 × 314 × 385 mm
• Net weight: 12.856kg / 28.34lbs
• Typical vessels: motor boats, 10–15m / 33–49ft