Victron Autotransformer 120/240VAC-32A
Victron Autotransformer 120/240VAC- 32A
Resolve Split-Phase Imbalances with Integrated Ground Relay Protection
Highlights:Status Indicators: LEDs for power on, ground relay state, and temperature status,Circuit Breaker: Front-access resettable breaker for overcurrent and temperature protection,Voltage and Current Rating: Designed for 120V or 240V operation with a 32A capacity,Cable Glands: M25 cable glands for secure and weather-resistant wiring entry.
Key features: Integrated rear wall-mounting brackets, Metal chassis with durable powder-coated finish, Clear technical specification and compliance labelling.
The base of the unit features a central cooling fan for thermal management, two M25 cable glands for electrical connections, and an external ground terminal stud.

DESCRIPTION
Victron 32A Autotransformer: Step-Up, Step-Down and Split-Phase Balancing
The Victron Autotransformer 120/240VAC 32A is an essential component for complex power systems requiring step-up, step-down, or split-phase output balancing. Designed to seamlessly integrate with advanced energy setups, this transformer ensures optimal utilisation of your power supply, whether you are operating from the grid, a generator, or an inverter.
Master Split-Phase Output Balancing
While step-up and step-down functions are straightforward, managing a split-phase power supply requires careful load balancing. Consider a 30A 120/240V split-phase supply powering both 240V and 120V loads. Because 120V loads are rarely distributed evenly across both legs, a severe current imbalance can occur. For instance, a heavy 120V load on one leg could draw 20A, while the other leg draws only 5A. This imbalance significantly restricts the overall capacity of your system, as one leg may overload while the other remains underutilised.
The Victron 32A step up transformer and balancer solves this issue. By connecting the autotransformer to create a new neutral, any load unbalance is absorbed. In the scenario of a 30A supply, the load difference flows through the neutral and the transformer's windings, allowing the system to operate at its full theoretical capacity without bottlenecking a single 120V leg.
A Smarter Alternative to Stacked Inverters
When designing a 120/240V split-phase system, using a single 240V inverter paired with a Victron autotransformer is often more efficient than stacking two 120V inverters. If you stack two 3kVA 120V inverters, each leg is strictly limited to its individual capacity (e.g., 25A). If the load on one leg is low, that spare capacity cannot be transferred to the other leg.
By contrast, pairing a single 5kVA 240V inverter with this 32A autotransformer supplies balanced load to each 120V leg while allowing spare capacity to cross over. If one leg has minimal load, the other leg can draw significantly more power, up to a maximum unbalance of 32A. This configuration is highly recommended for systems where uneven loads are expected.
Integrated Ground Relay for Seamless Integration
Safety is critical in off-grid and mobile power systems. When operating in inverter mode, the neutral output must be connected to earth to ensure the proper functioning of earth leakage devices like a GFCI or RCD. For split-phase supplies, the neutral must be explicitly grounded. To accommodate this, the Victron autotransformer features a built-in grounding relay that is directly controlled by your 230/240V Multi or Quattro inverter/charger, ensuring compliance and safety without complex external wiring.
Robust Hardware and Thermal Protection
Housed in a durable, powder-coated metal chassis with integrated rear wall-mounting brackets, this unit is built for longevity. The base features a central cooling fan for active thermal management, alongside M25 cable glands for secure, weather-resistant electrical connections. To protect your system, the unit includes temperature protection that will automatically disconnect the supply in the event of overheating, requiring a manual reset via the front-access circuit breaker once safe temperatures are restored.
Key Features
- Flexible voltage control: Reliable step-up, step-down, and split-phase balancing.
- High capacity balancing: Absorbs up to 32A of load unbalance to maximise inverter or generator output.
- Integrated ground relay: Designed for seamless use with Victron Multi and Quattro inverter/chargers.
- Thermal protection: Auto-disconnect on overheating with a simple manual reset circuit breaker.
- Clear diagnostics: Front panel status LEDs for power, ground relay state, and temperature.
- Durable construction: Robust powder-coated enclosure with M25 cable entries and a dedicated earth stud.
Maximise Your Power System Efficiency
Upgrade your electrical architecture with robust load balancing and voltage management. Integrate the Victron Autotransformer 120/240VAC 32A into your setup today to ensure stable, efficient, and safe power distribution across all your critical loads.
SPECIFICATIONS
Specifications
| Part Number | ITR000100001 |
|---|---|
| Input/Output Voltage | 120 / 240 V |
| Input Circuit Breaker | 32 A, Two Pole |
| Frequency | 50/60 Hz |
| Maximum 240 V Feed Through Current | 32 A |
| Neutral Current, 30 Min | 32 A (3800 VA) |
| Neutral Current, Continuous | 28 A @ 40 °C / 100 °F |
| Transformer Type | Toroidal |
| Enclosure | Aluminum |
| Electrical Terminals | Screw Terminals 35 mm² / AWG 2 |
| Protection Category | IP21 |
| Safety | EN 60076 |
| Weight | 12.5 kg |
| Dimensions (H x W x D) | 425 x 214 x 110 mm |
| SKU: | VIC-ITR000100001 |
| Barcode: | 8719076022404 |
| Model #: | ITR000100001 |
| MPN: | ITR000100001 |
WARRANTY
Victron Energy Limited Warranty Policy
Direct Customers
Victron Energy provides the following warranty to any direct customer (OEM, distributor or dealer) in relation to any products that Victron Energy has directly sold to the direct customer. This warranty is not an end-user warranty between Victron Energy and an end-user, and end-users shall not have any rights or remedies under this limited warranty towards Victron Energy directly. The direct customer shall, in turn, ensure that the end-user is provided with a warranty identical to this warranty, subject to applicable local mandatory law.
End-Users
Victron Energy may also provide a warranty directly to end-users, in which case the below warranty conditions equally apply to such warranty. In that case, end-users shall claim their warranty at their place of purchase or through the original direct customer of Victron, which can be found through the support section on Victron’s website https://www.victronenergy.com/support. Hence, the direct customer shall on behalf of Victron Energy deal with any warranty claims made under any warranty that Victron Energy may provide directly to end-users. This support section on Victron’s website https://www.victronenergy.com/support will provide further guidance on the procedure for end-users to make a claim under this limited warranty.
If the end-user is a consumer – a natural person who is acting for purposes which are outside that person's trade, business, craft or profession – the following applies. The rights and remedies granted to the consumer under this limited warranty are without prejudice to the consumer’s statutory rights. Furthermore, the consumer is entitled by law to remedies from the seller free of charge in the event of a lack of conformity of the goods (such as repair, replacement, price reduction or rescission), which remedies are not affected by this limited warranty.
Warranty
Victron Energy warrants its products to be free from defects in workmanship and materials for a period of 5 years from the date of purchase by the original end-user, with a maximum of 66 months from the Victron Energy invoice date. Exceptions on this are: lead-acid batteries: 2 years from date of purchase by the original end-user, with a maximum of 30 months from the Victron Energy invoice date, Lithium batteries: 3 years from date of purchase by the original end-user, with a maximum of 42 months from the Victron Energy invoice date. In addition to this, proof of correct battery usage is required when making a battery warranty claim.
For a 10% surcharge on the current net price for products that came with a 5-year warranty, an additional 5 years of warranty can be purchased by Victron’s direct customers, bringing the total warranty to 10 years. Warranty extensions need to be applied for ultimately one year before the expiration of the original term. Victron may ask proof that the product was still functional at the time of purchase of the extended warranty.
During the warranty period, Victron Energy will, at its discretion, repair, replace or (partly) credit the defective product free of charge. The warranty does not include performing or reimbursing de‐installation, transportation, and re‐installation.
This warranty will be considered void if the unit has suffered any physical damage or alteration, either internally or externally, and does not cover damages arising from improper use like:
- Reversed battery polarity.
- Inadequate connection.
- Mechanical shock or deformation.
- Contact with liquid or oxidation by condensation.
- Use in an inappropriate environment (dust, corrosive vapour, humidity, high temperature, biological infestation, etc.).
- Breakage or damage due to lightning.
- Connection terminals and screws destroyed or other damages, like overheating, due to insufficient tightening.
- For any electronic breakage except due to lightning (reverse polarity, over‐voltage due to external cause), the state of the internal control diode and/or the input/output X and Y capacitors determine the warranty.
This warranty will not apply where the product has been misused, neglected, improperly installed, or repaired by anyone other than Victron Energy or one of its authorized Repair Centres. In order to qualify for the warranty, the product must not be disassembled or modified.
This warranty and our warranty obligations thereunder (repair, replacement or credit) are the direct customer’s and, if applicable, the end-user’s sole rights and remedies and our sole obligations with respect to any defective and/or non-conforming product or breach of warranty and is subject to and without prejudice to the limitations of liability in this warranty.
Victron Energy shall not be liable for damages, whether direct, incidental, special, or consequential, even caused by negligence or fault.
As a product requires service, it must be brought back to the place of purchase. In case no contact can be made with the merchant, or if he is either unable or not allowed to provide service, direct contact should be made with Victron Energy through the support section on Victron’s website.
In case Victron Energy replaces a product, it will own the replaced product. Victron Energy owns all parts removed from repaired products. Victron Energy uses new or reconditioned parts made by various manufacturers when performing warranty repairs or building replacement products.
If Victron Energy repairs or replaces a part of a product, its warranty term is not extended: the warranty will apply for the remaining term of the original warranty term. For example, if Victron Energy replaces a product with a 5-year warranty after 3 years, the warranty of this product will apply for another 2 years, with a minimum of 6 months.
All remedies and the measure for damages are limited to the above. Victron Energy shall in no event be liable for consequential, incidental, contingent or special damages, even if having been advised of the probability of such damages.
The foregoing limited warranty provided by Victron Energy is in lieu of any other warranties, express or implied arising by law, course of dealing, course of performance, usage of trade or otherwise, of any kind whatsoever including, without limitation, warranties of merchantability or fitness for a particular purpose, with respect to any product. The above is without prejudice to the arrangement for consumers detailed above.
Life Support Policy
As a general policy, Victron Energy does not recommend the use of any of its products in life support applications where failure or malfunction of Victron Energy's product can be reasonably expected to cause the failure of the life support device or to significantly affect its safety or effectiveness. Victron Energy does not recommend the use of any of its products in direct patient care. Victron Energy will not knowingly sell its products for use in such applications unless it receives in writing assurances satisfactory to Victron Energy that the risks of injury or damage have been minimized, the customer assumes all such risks, and the liability of Victron Energy is adequately protected under the circumstances.
Warranty on repairs for products outside their warranty period
The warranty period on products that are outside their warranty period and have been repaired by Victron Energy or one of the Victron Energy Repair centres is six (6) months from delivery. The same applies to spare parts and circuit boards that have been supplied or repaired by Victron Energy.
Transport
It is the responsibility of the sender to sufficiently package these products. The transport must be organized in a way to avoid any damage, especially when a single unit or heavy unit is sent.
Severability
If a part of the terms and conditions of this warranty is held invalid, void or unenforceable due to any particular national or international legislation, it shall not affect other parts of the terms and conditions of this warranty.
Applicable law
This warranty is exclusively governed by the laws of the Netherlands, to the exclusion of the UN Convention on Contracts for the International Sale of Goods.
Contact details
Victron Energy B.V. | De Paal 35, 1351 JG Almere, The Netherlands | https://www.victronenergy.com/support



















































