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Max Power Electric Tunnel Thruster CT45
Max Power Electric Tunnel Thruster CT45
Max Power Electric Tunnel Thruster CT45 - Technical Diagram

Thruster only

All accessories are available separately

12 volt model only

Thrust 40kgf

via 125mm Ø Tunnel

Power 3.23kW / 4.3hp

DUO = Twin 3 Blade propellers

For boats between 6.0 and 10.3 metres in length, see windage and displacement size chart below


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Max Power are world renowned manufacturers at the forefront of innovative technology in the production of robust, dependable bow thrusters for sailing yachts and motor boats.

The CT45 has similar proportions to the CT35 with the benefits of an increased thrust capacity rating delivered via twin propellers (Duo)

Max Power advise that the CT45 is generally suitable for motor boats and sailboats up to 10.3 metres length overall, see chart below with more information relating to displacement and windage.

Max Power boat sizing category chart

Motor Heavy Displacement, High Windage Medium Displacement and Windage Light Displacement and Windage
Sail Cruising Fast Cruising Super Fast Cruising
LOA 6.0-8.5 metres 6.8-9.5 metres 7.3-10.3 metres

LOA = Length Overall

Max Power CT45 electric tunnel thrusters are an innovative, composite drive leg design, with twin 3 blade propellers, integrating all the unique features common to the Max Power electric tunnel thruster range.

Included in the box, Thruster only:
Thruster only means just the thruster unit as per the picture

CT45 compatible Max Power Accessories, NOT included in the box:

  • Single Joystick, part number 318202
  • Fuse Holder, part number 35017
  • Compatible 125 amp Fuse, part number 35021
  • Battery Isolator, recommended to validate your MAX Power warranty, part number 318400
  • Fibreglass tunnel, 125mm diameter, available in lengths from 0.75 - 2.5 metres e.g. 750mm part number 42547
  • Cable, available to purchase by the metre, part number 312781

N.B. professional installation is recommended

Max Power CT45 Facts, Features and PLUS Factors:

  • Simple, trouble free installation
  • Boat Length: 6.0-10.3 metres 
  • Zero maintenance
  • Patented composite drive legs
  • Case hardened spiro-conical gears
  • Line shields
  • Purpose-built DC motors
  • Electronic control boxes are an industry leading safety factor
  • Safe, high-power electrical circuit connections
  • Purpose-built high specification DC contactors
  • All Max Power electric tunnel unique features included
Max Power CT45 Electric Tunnel Specifications
Boat Length Power Power Supply Thrust Propeller Propeller Blades Tunnel Diameter Weight
up to 10.3 metres 3.23kw / 4.3hp 12V 40 Kgf Twin 3 125mm 9.65kg

Max Power Drawing CT35

CT45 Dimensions:
190mm 140mm 210mm 125mm 4 to 5mm

D = Tunnel internal diameter
E = tunnel wall thickness

Max Power Advisory

* Thrusters are designed to run at 10.75V on 12V units and 22V on 24V units. Higher voltages will result in higher thrust ratings, higher power consumption, and a reduced duty cycle.

* Performance data is given for a thruster installed at an immersion depth of one tunnel’s diameter, in a tunnel no longer than twice the tunnel’s diameter, and this is within a variation of + / - 6%. Longer tunnels will result in lower thrust ratings and higher power consumption.

  • Boat Size - up to 10.3 metres
Max Power Fuse Holder
Max Power Fuses

Max Power Fuses

Max Power Touch Control Panel
Max Power Fibreglass Bow Thruster Tunnels
Max Power 6 core loom signal cable
View +
Max Power Thruster Relay Assembly
Max Power Electronic Controller
View +
Max Power Wireless Remote Control
View +
Max Power Battery Cut-Off Switch
Max Power Bow Thruster Replacement Motor Diagram
Max Power Fibreglass Tunnels - 1 - 1.50 metre
Max Power Bow Thruster Replacement Parts Diagram

Max Power CT35/CT45

Max Power CT35/CT45 Bow Thruster Installation Manual, Wiring Diagram, Spare Parts and Troubleshooting Guide

Download (1.31MB)

Max Power CT45

Max Power CT45 Bow Thruster Data Sheet

Download (969.92KB)