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Find your way through the Max Power thruster catalogue: section page ranges, how to choose between tunnel and retractable units, and the key selection tables for electric, Eco Proportional and Ignition-Protected tunnel thrusters, fuses, GRP tunnels, propellers and drive legs.

DocumentMax Power Catalogue
FormatPDF · 52 pages · 11.2 MB
LanguageEnglish
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ContentsChoosingElectric TunnelECO & IPFusesTunnels & SparesProducts
Max Power Catalogue

What Is in the Catalogue

Section Catalogue pages
Electric Tunnel Thrusters (CT 25 to CT 325, bundles, CT 550 AC) 7-11
ECO Proportional Thrusters 12-13
Ignition-Protected Thrusters 14-15
Hydraulic Tunnel Thrusters (CT 125 HYD to CT 1000 HYD) 16-19
Stern Pod Thrusters and stern adaptors 20-21
Electric Retractable Thrusters (Compact Retract, VIP 150 / VIP 250) 22-25
ECO Retractable Proportional Thrusters (VIP ECO) 26-27
Hydraulic Retractable Thrusters (VIP HYD, R200 to R600) 28-33
Control Panels & Remote Controls 34-37
Marine Cables 38-39
Accessories (propellers, legs, isolators, fuses, mounting bases, GRP tunnels, stern adaptors) 39-42
Integrated Hydraulic Systems 44-45

Page numbers are the catalogue's printed page numbers.

Choosing a Thruster

  • Position matters as much as thrust: the turbine needs one full propeller diameter below the waterline (ideal immersion depth = 1 x tunnel diameter), and the unit should sit as far forward in the bow (or as far aft in the stern) as possible. A unit further from the bow needs more power for the same turning effect.
  • Tunnel thrusters are the solution for motor yachts and deep-keeled sailing yachts when sailing performance is not paramount.
  • Retractable thrusters install far forward in the bow while still reaching the required immersion; they often allow a lower thrust rating than the tunnel equivalent, and when retracted they add no drag. They are mostly suited to modern sailing yachts.
  • Power source: 12/24 VDC electric motor or a hydraulic motor (driven from an engine via a hydraulic pump, or from a remote DC power pack). Bow and stern thrusters together allow turning on the spot or moving the yacht sideways.
  • Boat type columns: heavy displacement / high windage & cruising; medium displacement / medium windage & fast cruising; light displacement / light windage & super fast cruising.

Electric Tunnel Thrusters

Model Code (voltage) Max. thrust at normal voltage (kgf/lbs) Propellers / leg Tunnel D (mm) Heavy Medium Light
CT 25 636061 (12 V) 30 / 66 Mono / composite 110 up to 21' / 6,5 m up to 24' / 7,3 m up to 26' / 7,92 m
CT 35 42529 (12 V) 35 / 77 Mono / composite 125 17' - 25' / 5,2 - 7,6 m 20' - 28' / 6 - 8,5 m 21' - 31' / 6,4 - 9,5 m
CT 45 317603 (12 V) 45 / 99 Duo / composite 125 20' - 28' / 6 - 8,5 m 22,5' - 31' / 6,8 - 9,5 m 24' - 34' / 7,3 - 10,3 m
CT 60 42530 (12 V); 42531 (24 V) 70 / 154; 71 / 158,4 Mono / composite 185 25' - 32,5' / 7,8 - 10 m 26' - 36' / 7,3 - 11 m 27' - 39' / 8,2 - 11,8 m
CT 80 42532 (12 V); 42533 (24 V) 80 / 176; 89 / 195,8 Duo / composite 185 28' - 35' / 6 - 10,6 m 30' - 40' / 9 - 12 m 33' - 46' / 10 - 14m
CT 100 42534 (12 V) 105 / 231 Duo / composite 185 32' - 10' / 9,7 - 12 m (as printed) 36' - 48' / 11 - 14,6 m 39' - 51' / 11,8 - 15,5 m
CT 125 42535 (24 V); 636660 (48 V) 122 / 268,4 Duo / composite 185 35' - 46' / 10,6 - 14 m 42' - 55,5' / 12,8 - 17 m 46' - 60' / 14 - 18 m
CT 165 317557 (24 V) 185 / 407 Duo / composite 250 40' - 52' / 12 - 15,8 m 48' - 61' / 14,6 - 18,5 m 54' - 65' / 14,5 - 20 m
CT 225 317558 (24 V, composite); 317586 (24 V, bronze) 250 / 550 Duo 250 45' - 58' / 13,7 - 17,6 m 53' - 69' / 16 - 21 m 60' - 75' / 18 - 22,8 m
CT 300 317606 (24 V); 636656 (48 V) 300 / 660; 275 / 606 Duo / bronze 300 48' - 63' / 14,6 - 19 m 59' - 79' / 18 - 24 m 67' - 93' / 20,4 - 28 m
CT 325 42542 (24 V, bronze); 634361 (24 V, aluminium); 636657 (48 V, bronze) 325 / 715 (24 V); 300 / 660 (48 V) Duo 315 51' - 69' / 15,5 - 21 m 62' - 87' / 19 - 26,5 m 68' - 100' / 20,7 - 30,5 m

Thrusters are designed to run at 10,75 V on 12 V units, 22 V on 24 V units or 45,6 V on 48 V units; higher voltages give more thrust, more consumption and a reduced duty cycle. Performance is for an immersion depth of one tunnel diameter in a tunnel no longer than twice its diameter (+/- 6%). CT 300 and CT 325 are delivered complete with control system. Bundles (thruster, joystick simple 318202, ANL fuse and fuse holder 636347) exist for CT 25 to CT 125 – see page 10. CT 550 AC (600138, 380 - 440 V 3ph 50 Hz, 450 / 992 kgf/lbs) is on page 11.

ECO Proportional

Model Code Voltage Thrust (kg) Leg D (mm)
ECO-PRO 90 636674 24 V 90 Composite 185
ECO-PRO 110 636675 24 V 110 Composite 185
ECO-PRO 130 636676 48 V 130 Composite 185
ECO-PRO 150 636763 24 V 150 Bronze 250
ECO-PRO 225 636851 24 V 250 Bronze 250

Brushless, fully proportional, runtime limited only by the battery; delivered complete with 10m CAN-bus cable. Boat lengths for each model are on page 13.

Ignition-Protected (ISO 8846)

Model Code Voltage Max. thrust at normal voltage (kgf/lbs) D (mm)
CT 35-IP 317609 12 V 35 / 77 125
CT 45-IP 317610 12 V 45 / 99 125
CT 100-IP 317615 12 V 105 / 231 185
CT 125-IP 317616 24 V 122 / 268,4 185

For petrol / gas engine vessels and habitually wet or damp areas such as sail lockers or the transom of deep V motor yachts.

Fuses for Electric Tunnel and Retractable Thrusters

Thruster model Amp (A) Fuse Fuse holder
CT 25/35/45, CT 125 48V, ECO 130, VIP 150/250 48V, VIP ECO 150/250 48V 125 35021 35017
CT 60, ECO 90 160 35019 35017
CT 80, C. Retract 200 35020 35017
CT 60/80, C. Retract 125 35021 35017
CT 100, VIP 150 315 35022 35018
CT 125, ECO 110/150, VIP 150, VIP 250 9.5kW 200 35020 35017
CT 165/225, VIP ECO 150/250 24V, VIP 250 15kW 250 35027 35018
CT 300 / 325 400 35028 35018
Thruster model (ANL) Amp (A) ANL fuse
CT 25, ECO 90, C. Retract 48V 150 636342
CT 35/45, ECO 110 175 636343
CT 60/80, C. Retract 225 636344
CT 60/80, ECO 150, C. Retract 175 636343
CT 100, VIP 150 400 636346
CT 125, VIP 150, VIP 250 9.5kW 225 636344
CT 165 325 636345
CT 225, VIP 250 15kW 400 636346

Fuse extraction handle 312882 for all ceramic-fuse models; ANL fuse holder 636347 for all ANL fuses. Rows transcribed as printed, including models that appear in more than one column.

GRP Tunnels, Propellers and Drive Legs

Tunnel length (mm) CT25 Ø110 CT35/45 Ø125 CT60/80/100/125 Ø185 CT165/225 Ø250 CT 300 Ø300 CT325 Ø315 CT550 Ø400
500 - 42546 - - - - -
750 636062 42547 42549 - - -
1000 636063 313804 42550 42553 - - -
1250 - 313809 - - - - -
1500 - - 42551 42554 313811 35004 -
2000 - - - - 313812 42557 636210
2500 - 42548 42552 42555 - - -
Stern adaptor - 315389 315392 315395 - 35015 -
Stern adaptor cowl - 315398 315399 - - - -

Isophthalic resin, pre-gel coated tunnels with a first coat of matte before filament winding, so they can be cut and drilled without damaging the inner gel coat. Stern adaptor fixation kit 35016 for all models.

Propeller code Thruster model Diameter (mm) Material / colour
35030 CT25 Ø 110 Composite / black
35041 CT35 / 45 Ø 125 Composite / grey
35040 CT60 / 80 / 100 / 125, VIP 150 & Compact retract Ø 185 Composite / grey
636576 CT60 / 80 / 100 / 125, VIP 150 & Compact retract (nut version) Ø 185 Composite / grey
35042 CT165 / 225 & VIP 250 Ø 250 Composite / grey
313810 CT300 Ø 300 Composite / black
35033 CT325 Ø 315 Composite / black
636242 / 636243 CT550 (left / right) Ø 375 Manganese bronze
Leg code Thruster model Construction Diameter (mm) Propellers
636098 CT25 Composite Ø 110 Mono
315318 CT35 Composite Ø 125 Mono
310376 CT45 Composite Ø 125 Duo
35034 CT60 Composite Ø 185 Mono
315321 CT165 / 225 Composite Ø 250 Duo
633674 CT165 / CT225 / VIP 250 Bronze Ø 250 Duo
35035 CT80 / 100 / 125 Composite Ø 185 Duo
315388 CT300 Bronze Ø 300 Duo
315324 CT325 Bronze Ø 315 Duo
315411 CT325 Aluminium Ø 315 Duo
636256 CT550 Bronze Ø 400 Duo
Electric battery isolator Voltage Thruster model
318400 12 V All (12V)
318401 24 V up to CT165 / BK8
634424 24 V CT225 / BK13 and above

The electric battery isolator is not mandatory but Max Power recommends it for safety. Battery coupler 42545 (12 / 24 V) for boats with a 12 V charging line and a 24 V thruster.

Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.

Products in this Selection Guide