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With information about 150 electric inboard boat motors from 17 manufacturers, welcome to what we believe is the most complete guide to electric inboard motors. It has been assembled to provide a single place where someone interested in electric marine propulsion can find the top line details to compare electric inboard motors made all over the world. ac shade pole gear motor
You may also be interested in our other guides »» Guide to Electric Outboards Under 5kW »» Guide to Electric Outboards Over 5kW »» Guide to Electric Saildrives and Pods »» Guide to Electric Trolling Motors »» Guide to Electric Boat Batteries
»» Plugboats also has the world’s largest and most complete Directories of over 600 electric boats, motors, batteries, accessories, solar panels and rental/charter companies
The top of this web page is an Illustrated Guide with photos of the motors and specifications to the right. At the bottom of the page is a Sortable/Searchable Table that lets you compare motors easily. If you are going to be using the table extensively the page is best viewed on a computer rather than smartphone or tablet.
The motors are organized in alphabetical order by manufacturer, then by model line. For the specifications we have tried to make it a user friendly as possible. If there are 3 models in the line, we will give the specs for each model with a comma in between. If there are many models, we give a range from without lining the specs up with specific models.
The table can be searched with any keyword – manufacturer, for instance, or can be sorted by any of the columns: Peak kiloWatt power, Continuous kiloWatt power, estimated HP equvalent, Voltage, Dimensions (Length, Width, Height), Weight, RPMs, Type of motor and cooling system (air, liquid, water), and whether it is regenerative – capable of recharging when the boat is under sail propulsion.
All specifications are taken from the manufacturers’ websites or brochures without any independent verification. There is a lot of variety in the way manufacturers detail the attributes of their products, particularly when it comes to ‘Power’. Some use peak power as the measurement, some use continuous power, and there are other variations. Some quote minimum RPMs for their motors, others quote maximum RPMs. There is also no set standard for ‘horsepower equivalent’. We have tried to present the information as close as possible to an ‘apples to apples’ comparison.
The photographs and drawings are from the manufacturers’ websites and are not shown in any consistent scale.
Power Ratings – measured in kiloWatts kW power rating quoted is taken from the manufacturer website. Some quote only peak power or continuous power, some quote input power and output power. We have indicated what the measurement is, although in the table we have used peak power as equal to input power and continuous as equal to output. power. HP is ‘HorsePower equivalent’ so that you can get an idea of the power of the motor in comparison to a HP rating you might be more familiar with. As noted above, there is a lot of leeway in how this is interpreted. When manufacturers have provided an HP equivalent we have used that.
Voltage is most often referred to on the sites as simply ‘Voltage’. Some indicate nominal or peak, we have used nominal and indicated if peak is also referenced.
Current is noted when the manufacturer supplies the information. It is not included in the table.
Torque is shown in Newton metres, Nm. A Nm is about 3/4 of a foot-pound, or conversely, a foot-pound is about 1 and 1/3 Nm.
Dimensions of the motors and shaft are shown in millimetres – mm. There are about 300 mm in 1 foot, or about 25 mm in 1 inch.
Weight is in kilograms. A kilogram is 2.2 pounds.
Motor Types There are advantages and disadvantages to each kind of electric motor. Some manufacturers use abbreviations to describe their motors, others use the full words. We have used whatever the manufacturer prefers, but when abbreviations are used, this is what they mean:
PMAC: Permanent Magnet Alternating Current
PMSM: Permanent Magnet Synchronous Motor
Information on this page updated September 28, 2024
Manufacturers in this Buying Guide: Bellmarine • Combi • Damoto • Elco • Electric Yacht • Electrine • EPTechnologies • ePropulsion • E-TECH • Fischer Panda • GreenStar Marine • Huracan • Krautler • Lynch • Mitek • Molabo • NT Systems • Oceanvolt • Piktronik • Powerflow • Synapseo • TEMA • Thoosa • Torqeedo • waterworld
Click on the Manufacturer’s name or red cross on right hand side to open and close window with information and links for that company’s electric electric inboards
Click »» here to see Bellmarine motors for sale from vendors in the Plugboats Market
»» Bellmarine website (EU) »» Bellmarine website (USA) »» Bellmarine catalogue (EU) »» Bellmarine catalogue (USA)
Bellmarine is a very well established electric boat motor company with a history going back to 1999. They have now been purchased by and are merged with Transfluid, a large scale industrial motor manufacturer. Bellmarine offers a wide range of electric inboard motor configurations, both direct drive shaft and reduction geared. They range from 2 kW to 130kW and come in four model lines: the straight drive Drivemaster, dual motor ModularMaster, geared Thrustmaster and high power Shaftmaster. They are sold as complete systems with optional extras available.
Bellmarine DriveMaster Air Cooled Series 9 Models: DriveMaster 2A, 5A, 7A, 8A, 10A, 15A, 25A, 35A, 50A
Bellmarine DriveMaster Liquid Cooled Series 9 Models: DriveMaster 3W, 7W, 10W, 15W, 20W, 20W-EVO, 30W, 45W, 55W
Bellmarine ModularMaster Series 3 Models: ModularMaster 40W-EVO, 40W, 60W
Bellmarine TorqueMaster Series 2 Air cooled Models: TorqueMaster 20A, 25A 7 Liquid cooled Models: TorqueMaster 20W-EVO, 25W, 35W, 45W, 65W, 100W, 130W
Bellmarine ShaftMaster Series 6 Models: ShaftMaster 25W, 35W, 45W, 64W, 100W, 130W
Combi Outboards was founded in 1979 in Giethoorn (‘the Dutch Venice’) to supply rental boats with clean electric power. It is now a leading international supplier of electric propulsion solutions for the maritime market. Combi inboards have all of the operating components in one housing, ready to plug in to batteries, throttle and monitoring systems. Motors are available both AC asynchronous (induction) and BLDC Permanent Magnet. The two larger inboards are dual motor, and can be operated on the Master / Slave principle but can also sail on a single motor.
Combi Inboard 5 Models: CI-3.5, CI-5, CI-7.5, CI-10, CI-16, CI-20
Damoto is a Dutch developer, manufacturer and distributor of an extensive range of premium electric inboard motors from 2kW to 40kW nominal. The first model dates from 2005 with more than 3000 boats equipped with it, including recreational sloops, charter and rental boats. The motors are now released under the name Damoto eFLOW but have been well known in the international maritime industry for many years.
Damoto Eflow Original Series 5 Models: Eflow 2.0 Air, Eflow 2.5 Air, Eflow 3.0 Air, Eflow 6.0 Air, Eflow 11.0 Air
Damoto eFLOW Liquid Original Series 8 models: eFLOW 3.0 Liquid, eFLOW 5.0 Liquid, eFLOW 10.0 Liquid, eFLOW 15.0 Liquid, eFLOW 20.0 Liquid, eFLOW 30.0 Liquid, eFLOW 40.0 Liquid Dual Motor, eFLOW 14.0 Liquid 4Hybrid Dual Shaft
Damoto eFLOW Air All-in-One Series 3 models: eFLOW 2.0 Air AiO, eFLOW 3.0 Air AiO, eFLOW 6.0 Air AiO
Elco (Elco Motor Yachts) is the oldest electric boat motor company in the world, having been started in 1893 as the the Electric Launch Company to supply electric boats for the Chicago World’s Fair. It offers a full range of outboards, inboards and hybrids. Their Plug n Play system has all wiring and active power components in a marine grade aluminum casting rated IP-65. Can be purchased from the Elco website along with batteries, options and accessories, leading to a one-price checkout. They also have a ‘Find My Motor‘ calculator on the site.
Elco Inboards 6 Models: EP-6, EP-12, EP-20, EP-40, EP-70, EP-100
Electric Yacht is one of the premier US suppliers of electric motors for sailboats with a Plug-n-Play system designed for DIY installation by “a competent boat owner using simple tools and the easy to mount Electric Yacht system“. Their systems offer regenerative power while under the sail. 10 years of proven production with over 450 installs. 3 Year Warranty.
Electric Yacht QuietTorque single motor inboards 3 Models: QT5, QT10, QT10 Sport
Electric Yacht QuietTorque dual motor inboards 6 Models: QT20, QT30-Air-Cooled, QT30-Liquid-Cooled, QT40, QT45, QT60.0
ELECTRINE is a Korean manufacturer which has focused on maritime electrification since 2010, when the idea of electric mobility was still relatively uncommon. The company was known as LGM until 2020 and has had a consistent R&D effort for many years. They manufacture electric outboards, inboards and saildrives as well as accessories and Lithium-ion batteries using a Carbon Nano Tube heat exchanger technology. There are 7 models in the eINBOARD Line, the ZI40, ZI60, ZI90, ZI115, ZI180, ZI270 and ZI350
E-ELECTRINE e-INBOARD line 7 Models: ZI40 (shown), ZI60, ZI90, ZI115, ZI180, ZI270, ZI350
Click here to see EPTechnologies motors for sale in Plugboats Marketplace
EPTechnologies is a complete marine propulsion provider for electric and hybrid vessels. The company specializes in custom electric and hybrid systems, but also has ‘off the shelf’ motors, including the drop-in Stern Drive unit below. The company delivers complete systems including batteries designed and built by EPTechnologies.
Click here to view motors from ePropulsion dealers in the Plugboats Marketplace
ePropulsion was established in 2012 and is led by a team of technology entrepreneurs that are focused on developing uncompromising, superior products. It was the first company to launch a brushless, direct-drive electric outboard motor in the market. ePropulsion offers a portfolio of electric outboard motors – some of which offer hydrogeneration – pod drives, and inboard motors. The company is focused on products and services for all kinds of electric boats from dinghies and fishing boat to sailing boats to commercial and leisure motor vessels up to 100-feet and displacement of 200 tons.
ePropulsion I-Series Three (3) models: I-10, I-20, I-40
ePropulsion H-Series Four (4) models available: H-60, H-85, H-100, H-140
E-TECH is a subsidiary of boatbuilder Starboats that was started in 2008 because they were dissatisfied with other electric motor offerings in the market at the time. The company has developed fixed pods, steerable pods and outboard motors that all utilize an in-water BLDC (BrushLess DC permanent magnet) pod motor in a watertight aluminum casing. The inboard motors are designed to fit any engine bed and any propeller shaft. For in-line hybrid applications, there are shaft endings on both ends of the engine to make an easy and quick in-line installation.
Click here to view motors from E-TECH dealers in the Plugboats Marketplace
E-Tech Standard Inboards 6 Models: 4WG, 7WG, 13WG, 18WG, 23WG, 35WG
E-Tech High Torque Inboards 4 Models: 13 Pod, 18 Pod, 23 Pod, 35 Pod
Fischer Panda is one of the world’s best known manufacturers of marine generators but are also manufacturers of high quality electric boat motors, sometimes marketed under the ‘Whisperprop’ name. They have an “EasyBox” system that is intended to take the guesswork and complication out of purchasing electric boat motors. There are various sample configurations on their website displaying how the EasyBox system is laid out in different boats.
Fischer Panda EasyBox Dyhift Systems 5 Motors: A06-140-6-SH, A50-160-6-SH, B00-150-8-SH 10 kW, B00-150-8-SH 20 kW, B00-300- 8-sh 20 kW
GreenStar Marine was founded by a group of Swedish engineers in the 1990s to develop a series of electric propulsion systems, including a patented regenerative technology. All of the company’s systems are direct drive one-gear and complete except for batteries. The website has an interactive tool that shows approximate run times for different sized boats and battery/motor configurations.
GreenStar E-Line 2 Models: E-10, E-20
GreenStar P-Line 3 Models: P-10, P-20, P-35
Huracan was founded at the beginning of 2012 in Venice with the goal of building entirely electric marine motors with the highest reliability of any on the market. The Thor motor is sold in a housing that includes the controller, with throttle, displays, monitors and other accessories sold separately.
Huracan Thor NOTE: The information for Huracan is presented in a different format from other manufacturers because the Thor is the only model, which provides different power ratings at different motor speeds.
Kräutler is a long-established Austrian manufacturer of industrial electric motors. They began construction of electric boat motors in the 80’s mainly because they could not find a product that would live up to the standards of founder Oswald Kräutler. They make motors for industrial and ship use as well as recreational boats and offer a wide range of inboards for any size boat or usage. Krautler has 3 lines of electric inboard motors. The WAd and WAz lines are direct drive and run from powers of 2.0kW to 25kW (WAd) and 6kW to 37kW (WAz). The WA line is made up of motors from 30kW to 100kW, for high speed / planing boats.
Krautler WAd and WAz line WAd – 11 Models WAd 2.0AC, WAd 3.0AC, WAd 4.3AC, WAd 5.0AC, WAd 6.0AC, WAd 8AC, WAd 11.0AC, WAd 15.0AC (48V, Air), WAd 15.0AC (96V, Water), WAd 18.5AC, WAd 20.0AC WAz – 10 models WAz 6,0AC, WAz 8,0AC, WAz 11,0AC, WAz 15,0AC (Air), WAz 15,0AC (Water), Waz 18,5AC, WAz 20,0AC, WAz 25,0AC, WAz 30,0AC, WAz 37,0AC
Krautler WA High Speed line 6 Models: WA 100/30, WA 150/40, WA 350/50, WA 350/60, WA 500/80, WA 500/100
The Lynch motor was invented by Cedric Lynch in 1979 – a unique axial gap permanent magnet brushed DC motor with high efficiency. The company offers three lines – the direct drive Yellowtail, geared drive Marlin and dual motor Swordfish. Motor systems include motor in mounting frame, controller, electronics, throttle and basic battery monitor and control cables. (options available on throttles and monitors) Lynch has 3 lines of electric inboard motors: the Yellowtail, Marlin and Swordfish, although the Yellowtail ‘line’ is only one motor.
Lynch Marlin: Marlin 5 Single, Marlin 8 Single, Marlin 13 Single
Lynch Swordfish: Swordfish 16V Twin, Swordfish 26V Twin
Mitek Srl manufactures permanent magnet synchronous electric motors that can be used both as propulsion engines and generators according to the highest quality standards for industrial and marine markets.With more than 10 years of experience, it is a flexible partner that provides competitive products and services for sustainable mobility. Its activities focus on the design, engineering and production of innovative high torque electric motors, which are lighter, smaller and more efficient.
Click »» here to see Molabo motors for sale in the Plugboats Market
Molabo was founded in 2016 with the goal of providing safe-to-touch low-voltage e-solutions to enable sustainable mobility worldwide. To achieve this they developed the ISCAD (Intelligent Stator Cage Drive) motor technology and have been granted 10 patents worldwide with automotive and marine OEM (Original Equipment Manufacturer) partners in Europe and China.
Click »» here to see NT Systems motors for sale in the Plugboats Marketplace
NT Systems was established in 2018 by a team that includes experts in boating propulsion systems, electric engineering, electric systems development, and development of hybrid propulsion for the biggest 10-20 meter hybrid fleet in the world. They have a range of compact turnkey electric propulsion systems for commercial and leisure applications with high power-to-weight ratio continuous power from 40 kW up to 450 kW. Their system includes top or side mount throttle levers and all-in-one MFD with integrated propulsion interface, navigation, entertainment, and connectivity.
NT Systems electric propulsion inboards 7 models: C40, C80, C120, C160, C200, C320, C450 NOTE: Direct Drive or Gearbox Versions Systems feature a built-in thrust bearing, allowing for direct shaft mounting and use of the propulsion system in a direct drive configuration for simplified installation. Systems are also compatible with various marine gearboxes, allowing you to adjust the output RPM and torque.
Click »» here to see Oceanvolt motors for sale in the Plugboats Marketplace
Oceanvolt is one of the best known names in electric boat motors, especially for sailboats, and is a leader in regenerative / hydrogenerative props systems. There are standard systems available, the motors can be purchased separately, and the company can also do custom installations. Oceanvolt has both all-electric and hybrid systems, we have only included the all-electric systems here, and only the standard preconfigured systems.
Oceanvolt Inboard Systems with AX motors: 3 Models: Shaftdrive 3, Shaftdrive 5, Shaftdrive 8
Oceanvolt Inboard Systems with AX3 motors: 2 Standard Systems: Shaftdrive 10, Shaftrdive 20 NOTE: The AX3 motors are 10kW motors that can be ‘stacked’ to create higher powered system, up to 40kW. i.e. the illustration below shows 1 X 10kW AX3 in the diagram but 2 X 10kW AX3s coupled to form a 20kW motor in the photograph.
Piktronik is an Austrian-Slovenian company working on the research, development and production of components for electrical vehicles (EV) and boats. Their inboards are available as standalones and also as complete systems.
Piktronik Motors: 7 Models: PMSM10, PMSM40 PMSM50 PMSM60 PMSM100 PMSM110 PMSM180
Piktronik Systems: All of the motor power sizes above are available as complete systems. System includes:
Powerflow Marine was founded by Jack Patton, a sailor of 20 years who converted his Passport 42 with his first G22 motor system, cruising Mexico’s Sea of Cortez under 100% electric power, then sailing to French Polynesia and back to the USA. Their B15 and G22 Motor Systems are compatible with standard shaft configuration vessels and made with high quality 316 stainless construction and serviceable thrust bearings for easy installation, durability and performance. The company also manufactures the SD17 electric saildrive to replace a Yanmar SD60 saildrive.
Click »» here to see Powerflow motors for sale in the Plugboats Marketplace
Synapseo was founded by a group of passionate sailors who have a common interest in making our oceans, seas and rivers great again. They have developed the KYWAT, an adaptive in-board solution to easily replace old diesel or gasoline engines. It is available in five models with power outputs from 4kW to 20 kW. The have output shaft diameter of 25mm to 30mm and mounting brackets hat adapt to all standard engine cradles. All motors have hydrogeneration / regeneration.
Synapseo Motors: 5 Models: AE-10, AE16, AE24, AE36, AE60
TEMA was founded in 1989 by Branimir Ruzojcic, Dr.Sc, who is still GM of the company. Its goal was to merge academic and scientific researches and engineering practical resources for offering sophisticated industrial automation products to the market. Today TEMA offers advanced motors/generators using Permanent Magnet technology ranging from 10KW to 1500KW and offers complete electric propulsion systems for all-electric, serial hybrids and parallel hybrid boats, from small leisure yachts to large commercial boats.
TEMA Motors: 5 Models: SPM132-1, SPM132-12, SPM132-2, SPM132-22, SPM132-3
The Thoosa design has been in production in Denmark since 1998, originally by ASMO Marine, which became Clean eMarine in 2012. They manufacture the AC Triton motor and the DC Thoosa line, which includes four models with power ratings from 5kW to 12kW. All are geared motors. Motor and controller are sold together, with mounting brackets. Throttles and monitors are also available from the company.
Thoosa DC Motors: 4 Models: Thoosa 5000, Thoosa 7000HT, Thoosa 9000, Thoosa 12000
Torqeedo is the world’s leading manufacturer of electric outboards. The company was founded in 2004 by Dr Christoph Ballin and Dr Friedrich Böbel when they decided they could build a better electric motor than the one on the boat Dr. Ballin had just purchased. The inboards are sold as a complete system, including batteries, and each is designed for different usage: the 1400 (RPM) models for displacement sailing with heavy boats, the 1800 (RPM) models for for planing with fast boats and the 100kW 900 for large sailing yachts and heavy displacement vessels.
Torqeedo Deep Blue Inboard Line – 25i and 50i models 4 Models: Deep Blue DB25i 1400, Deep Blue DB50i 1400, Deep Blue DB25i 1800 , Deep Blue DB50i 1800
WaterWorld is a joint venture undertaken by two companies, De Stille Boot, a distributor specializing in electric boating and Water World Electronics, a Dutch specialist in low voltage electronics. WWE develops and produces its own printed circuit boards and complete controllers for various markets such as the building and car industry. They have joined together to “offer boat owners and -users the ultimate joy of a quiet, calm and carefree boat ride.” The company offers four direct drive electric inboard systems, with the motor and controller in one housing with adjustable engine supports as well as monitors and other accessories.
WaterWorld Inboards: 3 Models: 4.0i, 7.5i, 10.0i, 15.0i
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