Victron Energy Autotransformers

€ 539,68

1-2 weeks delivery time
Price incl. 19% VAT

Current (Amps):

Victron Autotransformers are engineered for step-up, step-down, and 120/240V split-phase output balancing. They solve common load unbalance issues in split-phase systems, making full use of available power. Ideal for grid, generator, or inverter-based systems, the transformers include a built-in ground relay and thermal protection. Available in 32A and 100A versions, they feature toroidal design, IP21 aluminum enclosures, and are safer, quieter, and more efficient than stacked inverter setups.

Description
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Victron Energy Autotransformers provide essential functionality in advanced AC power systems by enabling step-up, step-down conversion and split-phase output balancing in 120/240VAC installations. These transformers are especially useful in mobile, off-grid, and marine energy systems where load balancing across split-phase power is critical for optimal performance.

Key Applications:

Step-up: 120V input to 240V output
Step-down: 240V input to 120V output
Split-phase balancing: Distribute unbalanced 120V loads over both legs of a 240V supply

Core Features:

Toroidal transformer for efficient, silent operation
Built-in ground relay for proper GFCI operation and system safety
Thermal protection: disconnects on overheat; manual reset required
IP21 aluminum enclosure – durable and compact for onboard or mobile applications
Ideal alternative to stacking inverters for 120/240V supply needs

Example Use Case – Split Phase Balancing:

In a 120/240V split-phase system, unbalanced 120V loads on each leg can limit total usable power. A 30A supply may only deliver 4.8kVA (67%) due to current imbalance. The autotransformer resolves this by creating a new neutral, balancing the load across both legs. This enables use of the full 7.2kVA potential while protecting the power source.

Technical Specifications:

Model	ITR000100001	ITR000100101
Rated Power	32A	100A
Input/Output Voltage	120 / 240 VAC
Frequency	50 / 60 Hz
Neutral Current (30 min)	32A (3800 VA)	—
Neutral Current (continuous)	28A @ 40°C	—
Transformer Type	Toroidal
Protection	Thermal shutdown, manual reset
Grounding Relay	Included (for inverter/charger compatibility)
Enclosure Material	Aluminum, blue anodized
Protection Class	IP21
Dimensions (H×W×D)	425 × 214 × 110 mm
Weight	12.5 kg	13.5 kg
Standards	EN 60076

Autotransformer Use Scenarios:

Generator Balancing: Efficient use of available output power from split-phase generators
Inverter Systems: Eliminates need for stacked inverters by converting 240V to split-phase
Off-Grid Homes or Marine Installations: Balances 120V loads to prevent breaker trips

Warranty: 5 years
Brand: Victron Energy