Mastervolt IVET 18 kW Isolation Transformer - 85001800

SKU: EX 85001800

1-2 weeks delivery time

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The Mastervolt IVET 18 kW (85001800) is a heavy-duty open-frame E-core isolation transformer built for reliable galvanic isolation between shore power and onboard electrical systems. Its multi-tap architecture supports a range of voltages (120 V, 220 V, 240 V), ensuring global compatibility. Designed for large-scale marine and industrial systems, the transformer features high efficiency (> 93%), natural cooling, and a rugged design without casing for flexible self-installation. Mastervolt recommends pairing with a Soft Start module to mitigate inrush current during startup and protect upstream circuit protection.

Description
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Mastervolt 85001800 – IVET 18 kW Isolation Transformer

The Mastervolt IVET 18 kW isolation transformer ensures safe and corrosion-free operation by electrically isolating onboard and shore power systems. Its open E-core design supports global input/output voltages (120/220/240 V) and is optimized for high-output continuous duty applications in marine, off-grid, or industrial environments.

Key Features:

Provides galvanic isolation to prevent stray current corrosion
Multi-tap output: 120 V / 220 V / 240 V ±5%
Input support: 110 V / 220 V / 240 V
Continuous power rating: 18,000 W
Efficiency > 93%, optimized for 230 V input (78 A)
Natural cooling for silent, fan-free operation
IP00 open-frame for installation in dry, ventilated compartments
Optional Soft Start module available to suppress high inrush currents

General Specifications:

Part Number	85001800
Power Rating	18 000 W
Input Voltage Range	110 V / 220 V / 240 V
Output Voltage	120 V / 220 V / 240 V (±5%)
Input Frequency	45–65 Hz
Output Frequency	45–65 Hz
Nominal Input Current (at 230 V)	78 A
Efficiency	> 93%
Dimensions (H × W × D)	490 × 320 × 260 mm / 19.3 × 12.6 × 10.2 in
Weight	110 kg / 242.5 lb
Compliance	CE, ABYC

Technical Specifications:

Technology	E-core transformer
Cooling	Natural convection
No-Load Power Consumption	< 10 W
Ambient Temperature	0 °C to 40 °C (power derates above 40 °C)
Operating Humidity	Max. 95%
Protection Degree	IP00 (open-frame, no enclosure)
Earth Leakage Protection	No (external system grounding required)
Soft Start Compatible	Yes (optional accessory)
MasterBus Compatible	No