AC Thruster 400 kg

AC Thruster 400 kg

DNV-GL Type Approval

Choose variant

7 Variants

Side-Power PROportional


A PROportional speed controlled thruster system allows for more precise handling of the boat in all conditions, applying only the necessary power needed to complete your maneuver confidently. By limiting the power under normal weather conditions, noise levels are significantly reduced.

The system also includes a practical HOLD-function in a twin thruster system. With a single press of a button, the bow and stern thruster will keep you alongside the docks - making single handed docking very easy indeed! Proportional thrusters are also the best choice for joystick interaction.

Side-Power S-link™


S-link™ is a CAN-based control system with full intelligent communication between all units in the system, much like a computer network.

  • Round, compact and waterproof connectors with unique keying and color coding to avoid faulty hookup
  • Unlimited number of commands or information transferred on a single cable
  • User feedback at panel
  • Intelligent troubleshooting

Side-Power Twin Counter-Rotating

Twin Counter-Rotating Propellers

Two counter-rotating propellers can give the most thrust at a good performance ratio in a minimal tunnel diameter. This system is used in our larger thrusters for maximum power. The TC models are the favourite thrusters among leading boatbuilders for their high-end yachts.

Side-Power Q-prop™


The new 5 blade special skew propellers are the result of over 2 years of development work and thousands of tests. They have been designed to reduce the noise level, while maintaining the exceptional efficiency of the old 4 blade Side-Power propellers. This goal was achieved, and we even chose to make them a little bit more aggressive on some models, increasing the thrust on some thrusters about 5%. Please see individual information on each new thruster for more details.

  • Noise reductions of up to 75% measured in controlled environments
  • The expected and tested normal noise reduction in average installations: 20-40%
  • Will be delivered on all Side-Power models except models with 300mm and 385mm tunnel diameter
  • Upgrade kits are available for most SP series thrusters with special adaptors

Side-Power Gravity Feed Lubrication

External oil tank for easy access

The thruster gearleg is filled with oil from a remote reservoir located above the waterline. This generates overpressure, making an effective seal against water intrusion in the gear leg.

  • Separate oil reservoir placed above the waterline
  • Allows easy access for oil changes
  • Having the advantage to be able to change oil in units used commercially, with hundreds of running hours per year
Thrust, continuous (kg • lbs) 400 • 882
Thrust, max (kg • lbs) -
Typical boat size (ft • m) 18' - 33' • 59 - 108
Tunneldiameter - innvendig (mm • in) 300 • 11.8"
Motor output (kW • hp) 30 • 41
Voltage range, 3-Phase supply (V) 208 - 240 / 380 - 440
Weight (kg • lbs) 111 • 244.7
Item Code SAC400/300-C-2-H
* Max thrust is available until motor temperature will reduce performance to continuous thrust rating.

Measurements - AC Electric Thrusters

SAC Horizontally mounted version - Angle 1 SAC Horizontally mounted version - Angle 2
SAC Vertically mounted version
A mm B mm C mm D mm E mm F mm G mm H mm J mm 1 Weight kg
SAC400/300 934 300 320 371 120 313 160 397 439 111
1 Weight stated is for complete thruster excluding VFD

SAC Thrusters Measurements Waterline

A recommended mm B min mm B max mm C min mm C recommended mm
SAC400/300 450 10 10 370 550

Measurements for VFD (Variable Frequency Drive)

VFD Measurements - Front View VFD Measurements - Side View

Thruster Model VFD model Weight (kg) D (mm) W (mm) H (mm)
SAC400 SAC400/300-C-2-H/V ACS580-01-115A-2 28,3 295 203 732
SAC400/300-C-4-H/V ACS580-01-073A-4 19 258 203 636
File Type Language Download
(INSTALLATION MANUAL) (AC) (400).pdf Installation Manual English  Download
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