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+33(0)4 93 00 03 39
Drakkar – Bât C
2405, route des Dolines – CS10065-06902 Sophia-Antipolis Cedex FRANCE


48V Electric Propulsion Systems

For each boat configuration, STR Europe assists you in developing a set of detailed specifications that meet your personal and operational needs for electric motor, in order to offer you the most comprehensive and most suitable solution for your project. Our Electric Yacht motors are available from 5kW to 50kW. Already 300 Electric Yacht motors installed all over the world!

The services of STR Europe can included an assistance and training for the installation of your electric or hybrid propulsion and its components.
Please fill the contact form here if you are interested in these technologies.

EY45 147

48V Electric Propulsion Systems

The QuietTorque™ 5.0 is recommended for boats up to 29’ -8,84m (LOA) and 3 t displacement.

Typically programmed and sized to push boat at cruising or harbor speed. Typical battery size is 100 – 200Ah.

 

Specifications

Motor type…………………………PMAC* Brushless

Voltage………………………………48 Vdc (nom)

Max power input……………….5.0 kW

Cont. Input Power…………….4.0 kW

Shaft size…………………………..20 to 38 mm stainless steel

Weight………………………………..23 kg

Frame………………………………..Anodized Aluminum

*Permanent Magnet Alternating Current

Standard Features

Motor Mounts…………………Adjustable Mounts to current engine stringers

Throttle……………………………Anodized Al waterproof throttle with key & neutral lock

System Monitor High capacity programmable monitor: (State of charge, Voltage, Current draw, RPM, battery type, Instant& accurate, Distance to discharge, Programmable regeneration,Throttle direction &throw)

Shaft coupler…………………Stainless steel coupler milled to match prop shaft

Power Switch…………………Blue Sea two position switch

Relay………………………………500amp vacuum Tyco relay

Fuse……………………………….Class-t fuse & holder

 

The QuietTorque™ 5.0 is very complete and includes everything you will need except batteries, battery cables and charger.

QT5.0 EU Product Data Sheet nov14

 

 


The QuietTorque™ 10.0 is recommended for boats up to 35’- 10,67m (LOA) and 5,5 t displacement.

Typically, replacing diesel engines in the 15 to 20hp range. Typical battery size is 200 – 300Ah.

 

Specifications

Motor type…………………………PMAC* BrushlessQT 10.0 5

Voltage………………………………48 Vdc (nom)

Max power input……………….10.0 kW

Cont. Input Power…………….8.0 kW

Shaft size…………………………..20 to 38 mm stainless steel

Weight………………………………..25 kg

Frame………………………………..Anodized Aluminum

*Permanent Magnet Alternating Current

 

Standard Features

Motor Mounts……………Adjustable Mounts to current engine stringers

Throttle……………………………Anodized Al waterproof throttle with key & neutral lock

System Monitor High capacity programmable monitor: (State of charge, Voltage, Current draw, RPM, battery type, Instant & accurate, Distance to discharge, Programmable regeneration,Throttle direction &throw)

Shaft coupler…………………Stainless steel coupler milled to match prop shaft

Power Switch…………………Blue Sea two position switch

Relay………………………………500amp vacuum Tyco relay

Fuse……………………………….Class-t fuse & holder

 

The QuietTorque™ 10.0 is very complete and includes everything you will need except batteries, battery cables and charger.

QT10.0 Product Data Sheet nov14



The QuietTorque™ 12.5 Liquid Cooling is recommended for boats up to 35′ -10,67 m (LOA) and 6,8 t displacement.
This system is available as an optional Electric Yacht Sail Drive system QT 12.5LC sd.

Typically replacing diesel engines in the 20 to 25 hp range. Typical battery size is 300 Ah 48V or more.

 

    Specifications

Motor type…………………………PMAC* Brushless

Voltage………………………………48 Vdc

Current………………………………260 amps

Max power input……………….12.5 kW

Weight………………………………..27.3kg

Frame………………………………..Anodized Aluminum

Propeller…………………………..2 or 3 blade 12 to 16, Fixed or Folding

Lower Unit Leg………………….Carbon Fiber or Aluminium, Belt drive- no oil/cooling, Sealed bearings, no service shaft seals

Propeller Shaft………………….3/4 to 1 1/2 inch stainless steel tapered shaft

System Monitor High capacity programmable monitor:
-State of charge
–Voltage
–Current draw
–RPM
–battery type
–Instant& accurate
–Distance to discharge
–Programmable regeneration
–Throttle direction &throw

Throttle……………………………Anodized Aluminium programmable with key and neutral lock

Shaft coupler…………………Stainless steel coupler milled to match prop shaft

Power Switch…………………Blue Sea two position switch

Relay………………………………500amp vacuum Tyco relay

Fuse……………………………….250amp Class-t fuse & holder

*Permanent Magnet Alternating Current

QuietTorque 12 5 LC Product Data Sheet STR

The QuietTorque™ 20.0 is recommended for boats up to 42’ -12,80m (LOA) and 10 t displacement.

Liquid cooling provides for high sustained output, ideal for hybrid applications. Typical battery size is 300 – 500 Ah.

Specifications

Motor type…………………………2 PMAC* Brushless

Voltage………………………………48 Vdc (nom)

Max power input……………….20.0 kW

Cont. Input Power…………….16.0 kW

Shaft size…………………………..20 to 38 mm stainless steel

Weight………………………………..61 kg

Frame………………………………..Anodized Aluminum

*Permanent Magnet Alternating Current

 

Standard Features

Motor Mounts……………….Adjustable Mounts to current engine stringers

Throttle……………………………Anodized Al waterproof throttle with key & neutral lock

System Monitor High capacity programmable monitor: (State of charge, Voltage, Current draw, RPM, battery type, Instant & accurate, Distance to discharge, Programmable regeneration,Throttle direction &throw)

Shaft coupler…………………Standard 4” flange

Power Switch…………………Blue Sea two position switch

Relay………………………………500amp vacuum Tyco relay

Fuse……………………………….Class-t fuse & holder

 

The QuieTorque™ 20.0 is very complete and includes everything you will need except batteries, battery cables and charger.

 

QT20.0 EU Product Data Sheet nov14

The QuietTorque™ 25.0 Liquid Cooling is recommended for boats up to 45’ -13.72m (LOA) and 12.7 t displacement.

Liquid cooling provides for high sustained output, ideal for hybrid applications. Typical battery size is 300 – 500 Ah.

Specifications

Motor type…………………………2 PMAC* Brushless

Voltage………………………………48 Vdc (nom)

Max power input……………….30.0 kW

Cont. Input Power…………….26.0 kW

Shaft size…………………………..20 to 38 mm stainless steel

Weight………………………………..68 kg

Frame………………………………..Anodized Aluminum

*Permanent Magnet Alternating Current

 

Standard Features

Motor Mounts……………….Adjustable Mounts to current engine stringers

Throttle……………………………Anodized Al waterproof throttle with key & neutral lock

System Monitor High capacity programmable monitor: (State of charge, Voltage, Current draw, RPM, battery type, Instant & accurate, Distance to discharge, Programmable regeneration,Throttle direction &throw)

Shaft coupler…………………Standard 4” flange

Power Switch…………………Blue Sea two position switch

Relay………………………………500amp vacuum Tyco relay

Fuse……………………………….Class-t fuse & holder

 

The QuieTorque™ 25.0 LC is very complete and includes everything you will need except batteries, battery cables and charger.
QuietTorque 25 Product Data Sheet STR
 

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