Victron 20m 100A:50mA Current Transformer for MultiPlus-II
Victron 20m 100A:50mA Current Transformer for MultiPlus-II
Enables PowerControl & PowerAssist for Older MultiPlus-II Units
Highlights:Split-Core Sensor: Blue housing that opens to fit around a conductor without disconnecting the circuit,3.5mm Jack: Plug for direct connection to compatible MultiPlus-II inverters,20-Metre Cable: Pre-wired long lead for flexible installation across the site,Clip Latch: Secure locking mechanism for reliable current measurement and safety.
Close-up of the 100A:50mA split-core current transformer showing the internal ferrite core and technical rating labels. 
DESCRIPTION
Victron 100A:50mA Split-Core Current Transformer for MultiPlus-II
Precision External Current Sensing for Advanced Energy Management
The Victron Current Transformer enables precise external current sensing for compatible MultiPlus-II and MultiGrid-II inverter-charger systems. With a 100A:50mA ratio, it provides the critical measurement data needed to implement PowerControl and PowerAssist features, preventing generator or shore power overload while maximising available AC power. It also optimises self-consumption by accurately monitoring grid import and export, allowing your system to make intelligent decisions about battery charging and load support.
Unlike generic current transformers, this unit is factory-calibrated with a fixed cable length of 20 m to ensure measurement accuracy. The split-core design allows for quick, non-invasive installation around existing conductors without disconnecting wiring, reducing downtime and installation complexity. The cable is terminated with a standard 3.5 mm headphone jack for direct plug-and-play connection to the MultiPlus-II, eliminating the need for additional adapters or complex wiring.
Key Features
- 100A:50mA transformation ratio for accurate current measurement
- Split-core design for easy retrofitting without disconnecting cables
- Factory-calibrated cable ensures measurement precision
- 3.5 mm jack for direct connection to MultiPlus-II and MultiGrid-II
- Enables PowerControl and PowerAssist to prevent overload and optimise AC input
- Supports self-consumption optimisation through external current sensing
- Rugged construction for reliable performance in demanding environments
Reliable Performance for Critical Power Systems
Designed for single-phase monitoring, this current transformer measures current only, not voltage, and is intended for use with older MultiPlus-II units that require an external sensor for advanced functions. The robust housing and high-quality ferrite core ensure stable, repeatable measurements, reducing the risk of system errors caused by inaccurate current data. By providing real-time feedback to the inverter-charger, it helps protect your installation from unexpected power interruptions and improves overall energy efficiency.
Applications
This current transformer is essential for installations where the MultiPlus-II must dynamically manage AC input current, such as in marine, RV, and off-grid backup systems. It is particularly valuable when connected to a limited shore power supply or generator, where exceeding the available current could trip breakers or damage equipment. By enabling PowerAssist, the inverter can supplement the AC source with battery power during peak demand, ensuring uninterrupted operation of critical loads.
Installation Notes
The cable length is calibrated at the factory and must not be extended or shortened, as this will affect measurement accuracy. The split-core clamp simply opens and closes around the conductor, making it suitable for both new and retrofit installations. Ensure the core is fully closed and latched for reliable operation.
Take Control of Your Energy
Equip your MultiPlus-II system with the precision it needs to deliver reliable, efficient power management. Order the Victron Current Transformer today and unlock the full potential of your inverter-charger.
SPECIFICATIONS
Specifications
| Model | Current Transformer 100 A:50 mA |
|---|---|
| Wire Length | 20 m |
| Voltage | 50 mV |
| Current Rating | 100 A |
| Wire Termination | Headphone jack |
| Use For | Older MultiPlus-II units |
| Monitoring Type | Single-phase only |
| Measured Quantity | Current, not voltage |
| Function | Implement PowerControl and PowerAssist, and to optimize self-consumption using external current sensing |
| SKU: | VIC-CTR110002050 |
| Barcode: | 8719076057161 |
| Model #: | CTR110002050 |
| MPN: | CTR110002050 |
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














































