Transformer

The Victron Energy Autotransformer is an indispensable power management tool designed to provide maximum flexibility for 120/240VAC electrical systems. Whether you are operating a high-end marine vessel, a luxury RV, or a sophisticated off-grid solar installation, managing split-phase power can be a challenge. This autotransformer solves the common problem of load imbalance and voltage incompatibility by providing seamless step-up, step-down, and balancing capabilities. By utilizing a high-efficiency toroidal design, Victron ensures that your system remains stable, even when dealing with significant 120V load discrepancies on a 240V circuit.

Key Features of the Victron Autotransformer

• Versatile Voltage Conversion: Easily perform step-up (120V to 240V) or step-down (240V to 120V) operations to match your equipment requirements.
• Split-Phase Load Balancing: Automatically balances the output of a 240V system to provide a stable 120/240V split-phase supply, preventing inverter shutdown due to leg imbalance.
• Integrated Ground Relay: Features a built-in relay that can create a Neutral-to-Ground bond when used with Victron MultiPlus or Quattro inverters, ensuring safety and GFCI compliance.
• Advanced Temperature Protection: Includes internal temperature sensors with a manual reset to protect the unit from overheating during heavy use.
• High-Efficiency Toroidal Design: Offers superior performance with low standby losses and high peak power capability compared to standard laminated transformers.
• Robust Aluminium Enclosure: Protected by a durable, corrosion-resistant housing rated at IP21, making it suitable for marine and mobile environments.

Technical Specifications

• Input/Output Voltage: 120 / 240 VAC

Frequency: 50/60 Hz

• Available Variants: 32A (ITR000100001) and 100A (ITR000100101) models.
• Max Neutral Current (32A Model): 32A for 30 minutes; 28A continuous.
• Efficiency: High-efficiency toroidal transformer core.
• Enclosure Material: Blue powder-coated aluminium.
• Compliance: Designed to meet EN 60076 safety standards.
• Weight: Approximately 27.5 lbs to 29.8 lbs depending on the specific amperage model.

Applications and Use Cases

The Victron Autotransformer is specifically engineered for specialty systems that encounter varied power configurations. In marine applications, it allows a vessel with 240V internal wiring to safely connect to 120V shore power. For RV and mobile off-grid users, it acts as a phase balancer, allowing a single 120V inverter to power 240V appliances, or balancing the loads on a 240V generator so that one leg isn't overloaded by multiple 120V devices. It is also an excellent alternative to "stacking" two inverters, offering a more cost-effective and space-efficient way to achieve split-phase output.

Choosing the Victron Energy Autotransformer means investing in system reliability and safety. By ensuring that your neutral currents are handled correctly and your voltages are matched to your loads, you extend the life of your appliances and your inverter system. With Victron's world-class engineering and a five-year warranty, this autotransformer is the professional choice for serious power systems worldwide.