Eaton 9155 Marine UPS (8-40kVA)

The Eaton 9155 Marine UPS is a proven, purpose-built online double-conversion UPS for marine, offshore, and vessel applications. Available from 8kVA to 40kVA, the 9155 Marine is DNV GL type approved, Bureau Veritas (BV) type approved, and ABS design assessed (up to 15kVA) - meeting the most stringent classification requirements for installation on vessels classed by DNV, BV, and ABS worldwide.

With its compact tower design, internal batteries, vibration absorbers, IP22 protection class, and front-only maintenance access, the 9155 Marine is engineered for the physical and electrical realities of shipboard and offshore platform installations. Mounting rails can be bolted or welded directly to the deck or bulkhead.

Indigi Power & Cooling supplies, installs, and supports Eaton 9155 Marine UPS systems across Australia and the Pacific. Contact us for an obligation-free quote.

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Key Features

Qualified Marine and Offshore Design

• DNV GL type approved - accepted for installation on all vessels classed by DNV

• Bureau Veritas (BV) type approved

• ABS design assessed (up to 15kVA)

• DNV classification: Temperature Class A, Vibration Class A, Humidity Class A, Enclosure Class A

• IP22 protection class as standard

• Vibration absorbers fitted under and at the rear of the cabinet

• Mounting rails can be bolted or welded to the deck or bulkhead

• Front-access-only design for installation in confined ship compartments

• RAL 7035 standard colour - alternative colours available on request

Online Double-Conversion Power Protection
The 9155 Marine uses transformer-free IGBT double-conversion topology (VFI class), providing complete isolation of connected equipment from all mains input anomalies including voltage fluctuations, frequency variations, and waveform distortion common in onboard generator power. Zero transfer time in the event of a mains failure.

Active Power Factor Correction (PFC)
Input power factor of 0.99 and input harmonic distortion below 4.5% ITHD - eliminating interference with other critical equipment on the same vessel network and improving generator compatibility. The 9155 Marine does not require oversizing for modern 0.9 power factor rated equipment.

Patented Eaton HotSync Paralleling Technology
HotSync enables parallel operation of up to four 9155 Marine UPS units for N+1 redundancy or increased capacity - without communication lines between units. Eliminating the parallel communication cable removes the single point of failure that exists in conventional parallel UPS architectures. Load sharing is automatic.

Eaton ABM Battery Management
Advanced Battery Management (ABM) charges batteries only when necessary, using a three-stage intelligent charging process. This prevents battery corrosion and extends VRLA battery service life by up to 50% compared to conventional float charging. ABM also monitors battery condition continuously and provides early warning of end-of-life.

Extensive Voltage Configurability
Standard nominal input voltages of 380V, 400V, and 415V (50/60Hz). With internal or external optional transformers, the 9155 Marine can be configured for virtually any vessel electrical standard from 230V to 690V - including 440V, 480V, and 690V systems common in marine and offshore applications.

Frequency Converter Operation
Configurable for frequency converter operation in both directions: 50Hz to 60Hz and 60Hz to 50Hz - supporting vessels operating between different regional power standards.

Internal Bypass Switches
Both internal automatic static bypass and internal mechanical manual bypass are included as standard - providing a safe maintenance path without requiring external bypass equipment.

Battery Technology Options

• VRLA (Valve-Regulated Lead-Acid) - standard, maintenance-free internal batteries

• NiCad (Nickel-Cadmium) - for high-temperature or wide temperature range applications

• Lithium-Ion - extended service life, faster recharge, reduced weight

Multilingual Graphical LCD Display
Full graphical LCD control panel with backlit mimic screen. Configurable and multilingual for international vessel crews.

X-Slot Communications
Two X-Slot communication bays accept optional Web/SNMP, ModBus/JBus, Relay, HotSync, and ViewUPS-X remote display cards. Serial port and 2 programmable relay inputs / 1 programmable relay output as standard.

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Applications

The Eaton 9155 Marine UPS is designed for critical onboard systems where power continuity is essential to vessel safety and operations:

• Navigation systems (ECDIS, radar, AIS, GPS)

• Communication systems (VHF, GMDSS, satellite)

• Integrated bridge systems

• Ship automation and control systems

• Voyage Data Recorders (VDR)

• Computer systems and servers

• Offshore platform control systems and SCADA

• Engine room monitoring and control

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Model Range and Specifications

9155 Marine 8-15kVA

8-15kVA Dimensions and Weights

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9155 Marine 20-40kVA

20-40kVA Dimensions and Weights

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Certifications and Compliance

Bridge Installation: The 9155 Marine TA variant meets DNV-CG-0339 EMC Class B requirements and is approved for installation on the bridge and open deck. The standard variant meets IEC 62040-2 C2 requirements and is approved for Class A (interior) locations.

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Communications and Connectivity

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Available Accessories

• Internal isolation transformer (eliminates need for external transformer cabinet)

• Long-life batteries

• External battery cabinets (9X55-BAT-M series - 32, 64, or 96 batteries, 7Ah or 9Ah)

• HotSync parallel tie cabinet

• Integrated manual bypass

• External maintenance bypass switch

• X-Slot connectivity cards (Web/SNMP, ModBus/JBus, Relay, ViewUPS-X)

• UPS Center (combined input, bypass, and distribution)

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Supply, Installation and Support

Indigi Power & Cooling supplies, installs, and supports Eaton 9155 Marine UPS systems across Australia and the Pacific region, including Papua New Guinea and offshore vessel operations. For a technical consultation, vessel-specific configuration advice, or an obligation-free quote, contact our team directly.