Marine and Offshore

Power protection systems on board for safety and business

Our top priority is securing the continuity of your business. Eaton's state-of-the-art UPS hardware, experience, problem-solving capabilities and commitment to good customer and maintenance services have made us the market leader in marine and offshore UPS solutions. We have extensive experience in supplying the marine industry with uninterruptible power systems. Eaton integrates a full line of uninterruptible power systems, power conversion products, power management software, remote monitoring, turnkey integration services and site support.


Eaton marine UPSs are designed to meet the most stringent industry standards. The double-conversion online topology (picture 1) with a static bypass switch is Eaton's choice for marine use. This protects against all types of power disturbances that may occur in the supplying network and is the only topology that meets the highest performance class, VFI-SS-111, requirements. All Eaton UPSs are tested and certified to meet appropriate safety and EMC standards. Eaton UPSs are built into one cabinet that houses all the electronics: the rectifier, the inverter, the static bypass and the microprocessor control. This configuration allows the entire system to be controlled as one integral device. This leads to higher reliability than using separate power converters. It also saves plenty of valuable space.

Double-conversion online UPS topology
Picture 1. Double-conversion online UPS topology

Higher reliability

The most critical loads may require increased protection. Therefore all 3-phase systems can be connected to parallel redundant configuration (picture 2).
In such a system two or more UPSs are supplying and sharing the same load. Should a failure occur in any of the UPS units, the faulty unit is automatically disconnected from the load and the remaining unit or units continue to supply the load. This redundancy leads to extremely high system level reliability.

Parallel redundant UPS system
Picture 2. Parallel redundant UPS system

Communication options

System performance monitoring is often crucial for continuous operation. Therefore a versatile combination of remote communication options via serial communication ports and potential free contacts are available.

Approvals & References


Eaton has type approval models up to 15 kVA.
Eaton is working for system testing and certification with:
  • Lloyd's Register of Shipping (LR)
  • American Bureau of Shipping (ABS)
  • Det Norske Veritas (DNV)
  • Germanischer Lloyd (GL)
  • Bureau Veritas (BV)
  • RINA
  • Korean standard (KR)
  • China Classification Sociey (CCS)
  • Russian Maritime Register of Shipping (RMRS)


Eaton has the pleasure to work with top shipping companies and ship builders around the world. Our list of references includes UPS deliveries for a wide range of vessels from cruise liners and ferries to ice breakers; from LNG carriers and cable ships to oil rigs. Contact our local sales office for references.


Eaton Marine & Offshore UPS catalogue
4019 kB
Eaton 9PHD Marine UPS Datasheet
167 kB
Eaton 9390 Marine UPS - Datasheet
146 kB
Eaton Electrical Marine & Offshore brochure
2855 kB
Oasis of the Seas sets sail with Eaton UPSs on board
189 kB


Marine UPS service

Eaton's UPS service network comprises more than 1200 service professionals and a number of authorised service partners worldwide. They make sure you get the same high quality services wherever you operate. We are available for our customers in all main ports around the world. Eaton offers service on every step of installation projects from detailed design to a full installation.

Eaton service products:

  • Installation
  • Commissioning and User's trainings
  • Preventive maintenance
  • Telephone support
  • Battery analysis and replacement
  • System upgrades
  • Spare parts

Engineering Services National Help Desk

1300 303 059