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Victron 200–250VAC 10kVA Single Phase Automatic Transfer Switch
Victron 200–250VAC 10kVA Single Phase Automatic Transfer Switch
40A Automatic Source Selector, IP54, 10-20 ms Transfer Time
Key features: IP-rated protective enclosure, Clear window for easy visual status inspection, Three integrated bottom-entry cable glands, Compact wall-mountable design.
Highlights:High-Power Contactors: Heavy-duty relays for reliable switching between power sources,Input/Output Terminals: DIN rail mounted terminals for secure input and output wiring,Waterproof Cable Glands: Three bottom-entry glands providing cable strain relief and sealing,Colour-Coded Wiring: Clearly defined internal phase wiring for simplified installation,Function Labels: Clear identification for IN1, IN2, and OUT circuit connections. 
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DESCRIPTION
Victron VE Transfer Switch 10KVA: Automatic AC Source Selection for Critical Power Systems
Seamless Power Transition for Off-Grid, Backup, and Mobile Installations
The Victron VE Transfer Switch 10KVA provides reliable, automatic switching between two independent AC power sources. Designed for single-phase systems operating at 200–250 V AC, it ensures your loads remain powered without manual intervention. This unit is particularly effective in setups where continuity is essential, such as switching between an inverter and shore power, a generator and shore power, or between two separate AC supplies.
Unlike generic transfer switches, the Victron VE Transfer Switch is engineered with a fast, break-before-make mechanism that completes a source transfer within 10–20 ms when closing contacts and 5–20 ms when opening. This rapid response helps protect sensitive electronics from extended interruptions and reduces the risk of equipment resetting during changeover. The integrated auxiliary contact (200–240 V AC, 20 A, cos φ = 1) adds flexibility for signalling or controlling external devices, such as starting a generator automatically when the primary source fails.
Built for Demanding Environments
Housed in a robust IP54-rated enclosure, this transfer switch resists dust and water spray, making it suitable for installation in engine rooms, outdoor cabinets, and marine environments. The light grey RAL 7035 finish reflects heat and blends into standard electrical panels. A clear viewing window on the front cover allows quick visual status checks without opening the unit, while three bottom-entry cable glands provide secure, strain-relieved cable entry. Inside, colour-coded wiring and clearly labelled terminals for IN1, IN2, and OUT simplify installation and reduce wiring errors.
With a nominal current rating of 40 A per input and output, the switch supports loads up to 8 kW for electric motors, such as air-conditioning compressors. This makes it a practical choice for caravans, motorhomes, and marine vessels where air-conditioning startup currents are a concern. The low power consumption of just 6 VA on Input 1 and 0 VA on Input 2 minimises standby losses, preserving battery capacity in off-grid systems.
Key Features
- Automatic break-before-make transfer between two AC sources
- Fast switching: 10–20 ms (close) and 5–20 ms (open) for minimal disruption
- IP54-rated enclosure with clear inspection window and cable glands
- 40 A continuous rating per input/output, 8 kW motor load capacity
- Auxiliary contact for generator start or external signalling
- Adjustable input 1 delay (approx. 10 s) to prevent nuisance switching
- Compact dimensions (175 x 215 x 120 mm) and lightweight (1.65 kg)
Applications Where Reliability Matters
This transfer switch is ideal for installations that demand uninterrupted AC power. Common use cases include:
- Caravans and motorhomes: automatically switch between inverter and shore power when connecting to a campsite supply.
- Marine vessels: manage shore power and generator inputs without manual changeover switches.
- Backup power systems: integrate with battery inverters and generators for seamless failover during grid outages.
- Remote off-grid sites: combine solar inverters with backup generators for extended autonomy.
By automating source selection, the VE Transfer Switch reduces the risk of operator error, such as back-feeding or leaving a generator running unnecessarily. It also eliminates the need for a separate manual changeover switch, simplifying system design and reducing installation time.
Installation and Integration
The unit is designed for straightforward integration into Victron Energy systems but is compatible with any AC power source within its voltage and frequency range (50–60 Hz). The adjustable input delay on Input 1 (approximately 10 seconds) allows customisation to match generator warm-up times or avoid transient switching. All terminals are clearly marked, and the DIN rail mounted internal components ensure secure connections even in high-vibration environments.
For systems requiring higher power handling, the 5KVA model is also available. However, for larger inverters or multiple high-demand appliances, the 10KVA version provides the necessary headroom to prevent overload and ensure long-term reliability.
Upgrade Your Power Reliability Today
Whether you are building a new off-grid system or retrofitting an existing installation, the Victron VE Transfer Switch 10KVA delivers the automatic, dependable source selection your setup needs. Add it to your system now and experience uninterrupted power, wherever you are.
SPECIFICATIONS
Specifications
| Nominal Voltage | 200 - 250 Vac, single-phase |
|---|---|
| Nominal Frequency | 50 - 60 Hz |
| Nominal Current Input 1 | 40 A |
| Nominal Current Input 2 | 40 A |
| Nominal Output Current | 40 A |
| Maximum Electromotor (Air-Conditioner) Power | 8 kW |
| Power Consumption Input 1 | 6 VA |
| Power Consumption Input 2 | 0 VA |
| Transfer Time By Closing Contacts | 10 - 20 ms |
| Transfer Time By Opening Contacts | 5 - 20 ms |
| Contacts Delay Input 1 | Approximately 10 s (adjustable) |
| Auxiliary Contact | 200 - 240 Vac, 20 A, cos phi = 1 |
| Operating Temperature | -5 °C to +60 °C |
| Maximum Humidity (Non-Condensing) | 95% |
| Protection Category | IP 54 |
| Colour | RAL 7035 |
| Dimensions (mm) | 175 x 215 x 120 |
| Weight (kg) | 1.65 |
| SKU: | VIC-COS230103100 |
| Barcode: | 8719076022084 |
| Model #: | COS230103100 |
| MPN: | COS230103100 |
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
