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Ready-to-install three-phase backup power kit
Ready-to-install kit based on the Victron Energy MultiPlus-II 48/5000/70-50 400V 5kVA / 4kW inverter and battery pack&LiFePO₄ Sunlight Power ESS 51.2 V 100 Ah. Provides an energy reserve of 25.6 kW&·h, stable power supply for three-phase equipment, automatic switching between the grid and the battery, and a fast charging rate—up to 1.9 hours.
The kit is designed for homes, businesses, office centers, and industrial facilities where a continuous 400 V power supply is required for three-phase loads: pumps, compressors, ventilation systems, boilers, servers, refrigeration equipment, etc.
Advantages of the TMS 400V Kit
⚡ High power transmission capacity from the grid
The system delivers power up to 33 kW, allowing it to power even energy-intensive devices—heat pumps, air conditioning systems, and refrigeration units. The limitation to the inverters’ rated power of 12 kW applies only when operating on battery power, when the grid is unavailable.
🚀 Peak power 27 kW
The MultiPlus-II inverters easily handle the short-term peak loads required to start motors, compressors, and pumps. This allows for uninterrupted operation even during sudden power surges.
🔋 Fast battery charging
The built-in powerful charger allows you to fully charge the battery in just 1.9 hours, so the system is always ready for new outages.
This is especially important in three-phase systems, where energy consumption is significantly higher than in residential installations.
The battery charging process is controlled by the built-in BMS (Battery Management System), which continuously exchanges information with the charger during the charging process. Voltage and current are adjusted according to the battery’s requirements.
This functionality makes the backup power system completely safe to use.
📱 Full control from your smartphone
Thanks to the VictronConnect and VRM Portal apps, you get full real-time control over the system. On the screen, you can see:
- presence or absence of mains power;
- current load;
- battery charge level (%);
- charger status.
- switch to battery power;
- restoration of power supply;
- critical discharge or overheating of the battery;
- generator start or stop (if connected);
- any errors or overloads.
Use convenient Victron widgets to quickly monitor the system status right on your phone’s home screen.
⚙️ PowerControl and PowerAssist
If your grid is weak and the circuit breaker trips frequently, the Victron MultiPlus system can help. Thanks to the PowerControl and PowerAssist features, the inverter supplements grid power with power from the batteries, allowing you to safely use high-power appliances.
📞 Call our managers to find out how this feature can help you specifically.
☀️ Solar Ready — ready for solar energy
The system is ready for integration with solar generation:
- via grid-tied inverters from Fronius, SMA, ABB, SolarEdge (AC Coupling);
- or via Victron SmartSolar / BlueSolar MPPT controllers (DC Coupling).
This means you can easily turn the system into a hybrid power station that charges batteries from the sun and powers three-phase loads even without an external grid.
🔄 Scalability
Inverters MultiPlus-II can be combined not only into three-phase systems, which we offer, but also in parallel, allowing you to gradually increase the system’s power up to 270 kVA / 216 kW. Sunlight batteries support parallel connection of up to 32 modules.
🛡️ 100% safe to use
The system is installed in compliance with all Victron Energy and Sunlight requirements. The system continuously monitors dozens of parameters: load on each phase, voltage, temperature, battery status, generator voltage, or auxiliary input. In case of a deviation from the norm, the system sends a notification to the service center of Total-Energo LLC and to the user.
🧾 Warranty and Certification
5-year official warranty on all system components. Option to sign an annual service contract, which includes:
- firmware updates;
- inspection of components and connections;
- VRM data analysis and optimization recommendations.
All equipment is certified to comply with Ukrainian, CE, and ECE R10-4 standards, which is important for government and commercial facilities.
The set includes
1 × Cerbo GX MK2 Victron Energy Communication Center
3 × Victron MultiPlus-II 48/5000/70-50 Inverter - 48/230V 5kVA/4kW Hybrid
2 × Victron Lynx Power In 1000 (M10) Modular Distribution Busbar
3 × Battery Switch ON/OFF 275A
5 × Victron MEGA-fuse 100A/80V
3 × Victron MEGA-fuse 200A/80V fuse
5 × Sunlight Power ESS LiFePO₄ Battery 51.2V 100Ah with built-in BMS
1 × Setting up the Multiplus three-phase configuration
1 × Installation Kit for Consumables 400V 15-20kW
1 × 19" 32U Battery Rack (depth 400 mm)
5 × 400 mm 1U 19" Battery Shelf
⚙️ Installation Algorithm
Needs Assessment
The first stage, during which the manager identifies the tasks that the UPS system must perform. This provides us with the preliminary technical specifications.
Preliminary Calculation
To agree on the cost of the system and select the optimal configuration.
Reservation and payment
Reserving the necessary parts in stock, generating an invoice, and, if necessary, preparing a supply contract.
Engineer visit to assess the site
Sometimes an on-site inspection is mandatory, for example, when installing high-power systems, or for additional work, such as when an uninterruptible power supply unit needs to be integrated with an existing generator.
Preparation of consumables
Mounting hardware, AC and DC cables, protective and insulating materials, etc.
Electrical installation work
Delivery and electrical installation work usually take place on the same day. Installation time ranges from a few hours to several days for high-power systems. The cost of delivery and electrical installation services is calculated separately for each case.
Commissioning and Testing
Configuration and verification of the uninterruptible power supply (UPS) operation in all modes: charging, discharging, simulation of power outages and restoration, etc.
Handover of documentation and control rights
Warranty card and, if necessary, additional documents (certificates, delivery notes, etc.), as well as user training. User registration for the VRM cloud service and transfer of rights for monitoring and operating the system. If necessary – assistance with installing apps on a phone for control and configuring push notifications.
Online support via VRM
The UPS will be under constant monitoring to ensure there is no indication of potential discrepancies in power output or battery capacity. The service center monitors all technical parameters of each component to ensure they remain within normal ranges.
Consulting
Throughout the entire service life, we provide remote support and answer your questions. If necessary, engineers will visit the site.
Annual Maintenance
We strongly recommend performing annual system maintenance to ensure 100% compliance with manufacturers' requirements.
💬 Get professional advice right now!
Engineers at Total-Energo LLC will help you choose the optimal system for your facility—from a private home to an industrial enterprise. Call now — find out how to ensure full 400 V energy independence for your company or home.