Cummins Marine Onan Gensets Open New Power Possibilities

The electrical power spread of the Cummins marine Onan range now stretches from 4 kWe to 195 kWe. Previously, the highest Cummins Onan rating available was 65 kWe, so the new gensets have opened a world of possibilities for boatbuilders and boat owners.

Cummins Onan marine generator sets are renowned for their robust build quality and outstanding performance characteristics, notably in the area of low noise, vibration and harshness (NVH).

The two new ranges, which can run on 100% hydrotreated vegetable oil (HVO), build on that proud heritage of reliable, smooth and efficient power delivery.

The versatility of the MDC and Onan QSB7E is enhanced by the ability to synchronise the generator sets, yielding benefits such as improved stability of electrical supply, greater fuel efficiency and higher levels of comfort all round for passengers and crew.

Both gensets are backed by Cummins’ extensive warranty (five years / 2,000 hours), and users have access to a worldwide service network of more than 10,000 authorised dealer locations, particularly reassuring for globe-trotting sailors.

Cédric Merveillaud, Cummins Director of Marine Europe, said: “With the one supplier for propulsion and auxiliary power, life becomes a lot simpler and more productive. Boatbuilders and owners can now deal with one trusted brand – Cummins – for the entire power requirement of their vessel.”

Visitors to the recent Genoa Boat Show reacted with enthusiasm to the launch of the MDC range, which have massive potential in the superyacht sector.

The MDC genset is available either non-aftercooled and aftercooled, this provides two power outputs giving the genset a rating of 40 to 80 kWe and 80 to 110 kWe respectively.

The MDC genset, which is available for both commercial and recreational marine applications, is compliant with EPA Tier 3 and EU Stage V regulations and available in both 50 Hz and 60 Hz models.

Using the Cummins Onan Digital Display, the MDC provides user-friendly diagnostics including extensive engine and alternator information, ensuring customer ease on the water.

Cédric Merveillaud said the MDC genset offered unique flexibility for customers. “It’s a safe choice for those requiring a compact genset without compromising on durability and fuel economy,” he said.

At the top end of the Cummins Onan genset scale now sits the Onan QSB7E, available with 10 power nodes and with an open or enclosed unit in both 50 and 60 Hz models. Maximum output is up to 195 kWe.

Available as unclassed, class-ready and full-class, the Onan QSB7E is a perfect low noise power solution for a variety of maritime applications including high-end superyachts, small passenger ferries, fishing boats and offshore support vessels.

Like the MDC, the Onan QSB7E can be supplied with the additional option of a front mounted power take-off which can be used to power various auxiliary systems, for example, hydraulic pumps, giving the customer flexibility and redundancy onboard.

Both marine gensets have single-side service access and the water-cooled exhaust can be installed either in forward or rear-facing configuration, helping provide maximum use of space. Also, the generator’s base has multiple outlets for fuel and battery cables.

Also, the high-pressure common rail fuel system of the B4.5 and QSB7 delivers class-leading fuel consumption while the cast water-cooled exhaust manifold makes for lower surface temperatures and improved overall performance.

“Cummins marine genset products are designed and built to provide reliability, performance and durability at reduced noise and vibration levels,” said Cédric Merveillaud. “That’s why this complete marine generator set package is ideal for recreational and light commercial vessels.”