The Victron Energy Current Transformer 100A:50mA for MultiPlus-II (1m) is a specialised AC current sensor designed to enhance the performance and intelligence of Victron inverter/chargers such as the MultiPlus-II and MultiGrid-II series. By interfacing directly with these inverters, it enables advanced energy management functions that help regulate power flow, protect weak AC sources, and improve solar self-consumption in hybrid or grid-tied systems.
Features & Benefits
- 100A:50mA Accurate Current Sensing : Precisely measures AC input current to ensure stable inverter performance and reliable energy monitoring in single-phase systems.
- Enables PowerControl Function : Automatically limits AC input current to prevent overloading weak grid connections or small generators, protecting equipment and avoiding unexpected shutdowns.
- Supports PowerAssist Technology : Allows the inverter to supplement grid or generator power with battery energy during peak demand, preventing breaker trips and maintaining continuous operation.
- Optimizes Solar Self-Consumption : Helps maximize the use of available solar power by enabling smarter load balancing, reducing reliance on utility power and lowering electricity costs.
- Non-Intrusive Installation : Clip-on design installs around the AC conductor without rewiring the main supply, making it ideal for retrofit and existing systems.
- 1-Meter Pre-Wired Cable : Compact cable length is perfect for installations where the inverter and distribution board are located close together.
- Designed for Seamless Victron Integration : Engineered specifically for MultiPlus-II and MultiGrid-II systems to ensure stable communication and optimal system intelligence.
- Ideal for Tanzanian Hybrid Systems : Enhances performance in areas with unstable grid supply or generator-based systems, improving energy reliability for homes and small businesses.
Use Cases
- Residential Solar Hybrid Systems: Enables accurate grid or generator current measurement when used with Victron MultiPlus-II, allowing better energy balancing between solar panels, batteries, and grid supply.
- Weak Grid Environments: Ideal for areas in Tanzania where grid capacity is limited or unstable. The transformer helps the inverter limit AC input current to prevent overloads and nuisance breaker trips.
- Generator Integration Systems: Perfect for homes, lodges, clinics, and small businesses running backup generators. Supports PowerAssist by allowing the inverter to supplement generator power during peak loads.
- Off-Grid Installations with Backup AC Input: In off-grid systems that occasionally connect to a generator, it ensures controlled charging and load sharing without exceeding generator capacity.
- Small Commercial Premises: Shops, offices, and hospitality businesses using hybrid inverter systems benefit from improved load management and reduced fuel consumption.
- Energy Cost Optimization Projects: Supports self-consumption optimization by prioritizing solar and battery usage before drawing from the grid, reducing electricity costs.
- System Retrofits & Upgrades: Suitable for upgrading existing Victron Energy inverter systems to unlock advanced PowerControl and PowerAssist functionality without major rewiring.
Value Propositions
- Enables advanced PowerControl and PowerAssist, protecting generators and weak grid connections from overload.
- Maximizes solar self-consumption, reducing electricity bills by prioritizing solar and battery energy use.
- Prevents nuisance tripping by intelligently managing peak loads in homes and businesses.
- Improves overall system efficiency and reliability, especially in areas with unstable grid supply.
- Reduces generator fuel consumption by allowing battery support during high-demand periods.
- Simple plug-and-play integration with compatible Victron inverter/chargers.
- Cost-effective upgrade that unlocks full smart functionality of MultiPlus-II systems.
- Ideal for Tanzania’s hybrid and off-grid installations where energy optimization is critical.
Local Market Positioning in Tanzania
- High demand for reliable hybrid power systems due to frequent grid instability and outages, particularly in urban areas like Dar es Salaam and Arusha, where consumers seek energy backup solutions.
- Growing adoption of solar and battery storage systems across residential and commercial segments as an alternative to unstable utility supply and to reduce reliance on expensive generators.
- Tanzania’s renewable energy market is expanding, with strong growth projections for distributed solar capacity and rural electrification—creating opportunities for smart inverter systems that optimise power usage.
- Local installers and solar companies increasingly recommend hybrid inverter/charger systems that can intelligently manage energy sources, making accessories like current transformers valuable in advanced installations.
- Rising interest in energy efficiency and cost savings among households and small businesses — users want to maximise solar self-consumption and minimise generator fuel costs, which the MultiPlus-II functions help enable.
- Market maturity varies by region: Rural areas still lag in technical expertise and formal installation services, making plug-and-play components that simplify setup more appealing to both installers and end-users.
- Opportunity for premium, intelligent power products: Tanzanian customers who invest in quality solar and hybrid systems often prioritise durable, scalable, and monitored solutions — positioning this sensor as a high-value add-on to globally recognised inverters.
- Support for decentralised, off-grid solutions: With national initiatives to improve electrification using distributed renewable systems, smart current sensing helps hybrid systems operate efficiently in mini-grid and off-grid scenarios.
Technical Specification
| Specification | Details |
|---|---|
| Product Name | Victron Energy Current Transformer 100A:50mA for MultiPlus-II (1m) |
| Transformation Ratio | 100 A : 50 mA (current output proportional to measured current) |
| Maximum Measured Current | 100 A (nominal) |
| Cable Length | 1 meter pre-wired cable |
| Connector Type | 3.5 mm audio jack connector (CTR11 series) |
| Inner Diameter (approx.) | ~16–20 mm (fits around single AC conductor) |
| Compatibility | Designed for Victron MultiPlus-II and MultiGrid-II inverter/chargers |
| Primary Function | External AC current sensing for PowerControl and PowerAssist functions |
| Installation Type | Clip-around (non-invasive) on the live conductor; plug into CT input on inverter |
| Operating Temperature | Typically within standard electrical sensor range (approx. –25 °C to +70 °C) per typical CT specs |
| Use Cases | Self-consumption optimization, grid/generator current monitoring, intelligent load management |




