SAC320 tunnel thruster Ø300mm 230V

The Sleipner SAC320 (item code SAC320/300-I-2-H) is a 230 V AC tunnel thruster with 320 kg of thrust, mountable as a bow or stern thruster. It is designed for horizontal mounting on boats of 17-31 m (55-100 ft), including commercial and industrial vessels in frequent operation.

Key features

• Twin counter-rotating propellers for maximum thrust in a minimal tunnel diameter
• Q-PROP five-bladed skew propellers: up to 75% noise reduction measured in controlled environments, 20-40% expected in average installations
• PRO variable speed control with hold-thrust function; suited to joystick interaction
• S-Link CAN-based control system with waterproof, keyed and colour-coded plugs; allows AC and hydraulic thrusters on one common control cable
• Flexible coupling compensating for minor misalignment between motor and gearleg
• Flexible installation at any angle on the tunnel
• Sealed drive lubrication: gearleg pre-filled for life and sealed with a ceramic/carbon mechanical seal
• Galvanic separation of immersed parts from the onboard electrical system

Technical data

• Power supply: 230 V AC, 208-240 V 3-phase
• Power output: 21 kW / 28.2 hp
• Thrust: 320 kg / 705 lbs intermittent, 280 kg / 617 lbs continuous
• Tunnel internal diameter: 300 mm
• Dimensions (H x L x W): 703 x 347 x 262 mm
• Minimum water depth: 450 mm
• Tunnel length: min. 300 mm, recommended 550 mm
• Tunnel wall thickness: 10-15 mm
• Net weight: 71 kg / 156.53 lbs

Delivery scope

Supplied as a complete ready-to-install kit, configured for the specific vessel with no further VFD setup required:

• PDC-301 Drive Controller (Modbus link to VFD, real-time data logging, fault history, firmware upgrade via S-Link)
• Variable Frequency Drive (VFD); low-harmonic VFD option reduces total harmonic distortion to less than 5%
• Gearleg with propellers and bracket
• Flexible coupling
• AC motor
• EMC filter

Applications

Bow, stern and tunnel installation on commercial vessels, motor boats and sailing yachts of 17-31 m.