Description
xVictron Energy Isolation Transformer 4500W Auto 115/230V
The Victron Energy Isolation Transformer 4500W is a galvanically isolating autotransformer designed for shore power connections on boats, motorhomes and off-grid installations. It eliminates the risk of stray current corrosion and electric shock hazard from faulty shore supplies, and handles automatic voltage conversion between 115V and 230V AC systems. Suited to professional marine and mobile power installations where grid isolation is a safety requirement.
Key Features
- 4500W continuous power rating, suitable for high-load onboard or mobile AC systems.
- Automatic 115V/230V voltage conversion, allowing connection to both North American and European shore power supplies without manual reconfiguration.
- Galvanic isolation breaks the direct electrical connection between shore earth and vessel or vehicle chassis, preventing stray current corrosion.
- Eliminates shock hazard caused by faulty or poorly earthed shore power pedestals.
- Compact, robust toroidal transformer construction with a rated weight of 21.8 kg, typical of high-quality toroidal core design.
- SKU ITR050452042 — Victron Energy OEM product with GTIN 8719076075202.
Product Overview
Shore power supplies at marinas and campsites are not always clean or correctly earthed. A direct connection between shore earth and a vessel's hull creates a galvanic cell with neighbouring metalwork in the water, accelerating corrosion of anodes, propellers and through-hull fittings. The Victron Isolation Transformer breaks this path entirely by providing full galvanic isolation between the shore supply and the onboard AC system.
The auto 115/230V function means the transformer detects and converts between the two most common shore power voltages. This is particularly relevant for vessels or vehicles that travel between the UK and Europe and North America, or for installations where the shore supply voltage is not guaranteed. At 4500W, the unit supports meaningful onboard loads including air conditioning, battery chargers, inverter-chargers and galley equipment running simultaneously.
Toroidal transformer construction is standard in quality marine isolation transformers. It offers a lower magnetic field footprint and better efficiency compared to conventional laminated core designs, which matters in confined bilge or locker installations where heat and space are concerns.
Technical Specifications
| Parameter | Value |
| SKU | ITR050452042 |
| Rated Power | 4500W |
| Voltage (Auto) | 115V / 230V AC |
| Weight | 21.8 kg |
| GTIN | 8719076075202 |
Applications
- Marine shore power connections on sailing yachts, motorboats and narrowboats where galvanic isolation is required.
- Motorhomes and caravans connecting to campsite hook-up supplies with uncertain earthing quality.
- Vessels travelling between 115V (North American) and 230V (European) shore power infrastructure.
- Any installation where a direct shore earth-to-chassis connection must be avoided for corrosion or safety reasons.
- Commercial and charter vessels where electrical safety compliance demands full isolation from shore supply.
What Is Included
- 1 x Victron Energy Isolation Transformer 4500W Auto 115/230V
Installation Notes
This transformer handles mains AC voltages and must be installed by a qualified electrician or a competent marine electrical engineer. On vessels, installation should comply with the relevant edition of BS EN ISO 13297 (small craft electrical systems) or applicable flag state regulations. The unit weighs 21.8 kg and requires secure, ventilated mounting in a dry location. Ensure cable sizing and circuit protection are rated for the full 4500W load. Do not install in bilge areas subject to flooding or direct water ingress.
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Non-faulty items returned after 14 days and/or not in their original, undamaged packaging can only be exchanged for store credit - 15% off the items returned.
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.