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Item #:
91064651
Victron Autotransformer - Split Phase 120/240V - 100AMP [ITR000100101]
Item #:
91064651
OMR 253
Price Details
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*All items will import from US
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Order now and get it around Tuesday, September 01
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The Autotransformer allows you to increase your load capacity to a full 7.2kVA, even with a 20A load unbalance.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Enhanced Power Conversion
The Victron Autotransformer efficiently converts 120V to 240V, maximizing utility for diverse applications, ensuring steady power supply for appliances and systems.
Robust Current Rating
With a 100AMP rating, this autotransformer caters to high-demand environments, providing reliable service for residential, commercial, or industrial electrical needs.
Compact Design
Designed for versatility, the compact model fits various installations without occupying excessive space, making it ideal for both tight and spacious settings.
Product Details
- Autotransformer - Split Phase 120/240V - 100AMPThe Autotransformer: for step up, step down and split phase balancing An autotransformer can be used for step up, step down and split phase output balancing purposes. While the step up and step down functions are fairly straightforward, split phase output balancing may require some more attention. Consider for example a 30A 120/240V split phase supply. The supply could be the grid, a generator or two stacked inverters. Some of the loads connected are 240V, others are 120V. On each 120V leg the load should not exceed 30A. The problem is that as soon as 120V loads are connected, the two legs will show a different current. This is because the 120V loads on the two legs will never be balanced. A 120V 1200W hairdryer, for example, will draw 10A from one leg. A 120V washing machine could even draw in excess of 20A from one leg. Between the two legs the difference in current, or current unbalance, will therefore often be 20A or more. This means that the 30A supply will not be used up to its full potential. By the time one leg draws 30A, the other leg may be drawing no more than 10A, and increasing the 240V load, for example, will result in an overload of one leg while the other leg still has spare capacity. Theoretically, the total power that can be drawn from a 30A 120/240V supply is 30 x 240 = 7,2 kVA. In case of 20A unbalance, the practical maximum will be 30 x 120 + 10 x120 = 4,8kVA, or 67% of the theoretical maximum. The solution is an Autotransformer. By leaving the neutral of the split phase supply unused, and connecting an Autotransformer to create a new neutral, as shown in figure 1, any load unbalance is ‘absorbed’ by the Autotransformer. In case of a 30A supply, the load can be increased to 7,2kVA, and a 20A load unbalance will result in one leg supplying 40A, and the other leg 20A. The 20A difference will flow through the neutral and the windings of the Autotransformer. The current through both 120V wires of the split phase supply will be 30A. Temperature protected In case of overheating, the Autotransformer is disconnected from the supply. Reset is manual. Ground relay for use with Multi or Quattro Inverter/Chargers included When operating in inverter mode, the neutral output of the inverter/charger must be connected to ground to guarantee proper functioning of a GFCI. In case of a split phase supply the neutral must be grounded. For this purpose a grounding relay is built in the autotransformer’s enclosure. The relay is controlled by the 230/240V Multi or Quattro. (The internal grounding relay in the 230/240V Multi or Quattro must be disabled) An alternative to stacked inverters The alternative to stacking two 120V inverters to provide a 120/240V split phase supply is a 240V inverter with an additional Autotransformer.Warranty InfoWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.Please contact your dealer for any returns, repairs or support issues related to this product. Manufacturer : Victron Energy Manufacturer Part No : ITR000100101 UPC : 8719076022428
| Amps | 100 A |
| Volts | 120 V, 240 V |
| Has written warranty | No |
| Has nrtl listing certification | N |
| Height | 8 in (20.3 cm) |
| Weight | 30.5 lb (13.83 kg) |
| Model | ITR000100101 |
| Color type | Blue |
Who Should Buy?
-
Off-Grid Systems
Ideal for users with off-grid solar power systems needing voltage conversion for split-phase applications efficiently.
-
RV Owners
Perfect for RV owners who require a reliable way to convert power for appliances needing different voltage levels.
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Residential Applications
Suitable for homes requiring a stable power source for high-demand electrical devices running on split-phase 240V.
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Small Load Users
Not ideal for users with minimal or light electrical loads due to its high capacity and size.
Product Description
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Customer Questions & Answers
-
Question:
What is the main function of the Autotransformer?
Answer: The primary function is to step up, step down, and balance split phase outputs efficiently. -
Question:
Is the Autotransformer safe to use?
Answer: Yes, it features temperature protection that disconnects the unit in case of overheating. -
Question:
Can I use this with my existing inverter?
Answer: Yes, it is designed to work with Multi or Quattro Inverters, providing a grounded neutral for operation.
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Pros
- High efficiency performance
- Compact and lightweight design
- Easy installation process
- Reliable voltage regulation
- Durable and long-lasting
Cons
- Manual could be clearer.
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OMR 253
Order now and get it around Tuesday, September 01
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Features & Benefits
- Boosts load capacity to 7.2kVA with Autotransformer technology.
- Balances unbalanced 120V loads efficiently.
- Simple installation connecting new neutral.
- Temperature protection for safe operation.
- Built-in ground relay for Multi/Quattro Inverters.
- An excellent alternative to stacked inverters.
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