ePropulsion I-40 Electric Inboard Motor (40 kW, 96V eSSA)

ePropulsion I-40 — 40 kW, 96V Electric Inboard

The I-40 is the flagship of ePropulsion's 96-volt I-Series inboards — 40 kW of clean, quiet power for larger sailing yachts, multihulls, powerboats, and commercial craft like workboats and water taxis. It keeps the I-Series' integrated, space-saving design while delivering serious thrust for heavier vessels.

Why the I-Series

• 5-in-1 integration — motor, gearbox, controller, control unit and cooling in one unit; ~60% less space than combustion.
• Light for its output — 205 lb; far lighter than a comparable diesel.
• Hydrogeneration — recharges the battery from water flow while sailing.
• Plug-and-play pre-connected wiring; connected via the cloud Connectivity Service.
• Unified Smart Throttle + 5″ display; dual-motor route planning supported.

One connected system — eSSA

The I-40 runs on ePropulsion's eSSA architecture. Larger installs typically parallel multiple 96V G-Series batteries; pair with G-Series chargers or the 2 kW MPPT solar controller and your choice of Smart control/display. Our advisors will size the bank, charging and controls with you.

You also need a 12V battery. Beyond the 96V propulsion pack, the I-Series uses a separate 12V supply for its controls, display, and electronics. An included 96V→12V DC-DC converter (500W) keeps it charged from the propulsion pack. The 12V battery is not included and should provide at least 80 Ah capacity and 40 A output — we'll spec it with the rest of your system.

Specifications

What's in the box

• I-40 inboard motor (pre-connected internal wiring)
• High-voltage power cable
• 96V→12V DC-DC converter (500W) and 12V power cable
• 3.3 kW G102 battery charger
• Bus Box
• eSSA communication cable and terminators

To complete the system you'll add one or more 96V G-Series batteries, a 12V battery (≥80 Ah/40 A), and your chosen control/display.

Applications

Larger sailing yachts, multihulls, leisure powerboats, narrowboats, and commercial workboats, water buses and ferries.

Warranty

Covered by ePropulsion's 24-month limited warranty (from delivery to the first end customer) against defects in materials and workmanship under normal recreational use with proper installation and maintenance. Commercial or professional use is covered by your local statutory warranty instead. Blue Marine is an authorized ePropulsion dealer and will help with any claim.

Support

Professional installation is strongly recommended; many regions classify a 96V install as high-voltage work. Schedule an online consultation and our ABYC-certified advisors will size battery banks, the 12V supply, charging and controls as one system.