Offgridtec Backup Kit 3-phase 28.8kWh with Pylontech US5000 battery Victron MultiPlus-II 48/8000

The backup systems from Offgridtec are ideal for emergency power supply or for expanding an existing solar system. The systems include, in addition to lithium-ion batteries from Pylontech, a suitable MultiPlus-II inverter and a Cerbo GX MK2 for system monitoring. This ensures that you can maintain your energy supply even in the event of a power outage.

Thanks to the UPS function, the MultiPlus remains active even during a network error and takes over the supply of connected consumers. The switch-over occurs so quickly (in less than 20 milliseconds) that uninterrupted operation of computers and other electronic devices is guaranteed.

Applications of the Offgridtec Backup Kit:

• Emergency power supply
• Off-grid solar systems (island systems)
• Retrofitting existing PV systems
• Grid-connected power supply
• UPS systems

What is included in the Offgridtec Backup System?

• Pylontech US5000C 3.5kWh LiFePO4 battery (depending on selection: 4x, 6x, or 8x)
• 3x MultiPlus-II 48/8000/110-100/100 230V device combination
• 2x Victron Lynx Distributor
• 1x Victron Cerbo GX MK2 control panel
• 1x Victron GX Touch 50 display for Cerbo GX
• 1x Victron MK3-USB Ve.Bus to USB interface
• 1x 1.8m VE.Can to Can-Bus BMS Type A cable
• 2x 0.9m Victron RJ45 UTP cable
• 1x 3m Victron RJ45 UTP cable
• 6x 1m Offgridtec battery cable 35mm² M8 lugs
• 6x 200A 70V MEGA fuse
• 2x Pylontech battery connection cable set

Extended use of your backup system

To establish an ESS (Energy Storage System) with the backup system, an energy meter with connection cable is required:

• Victron VM-3P75CT Energy Meter 3-phase meter 75A/phase
• 5m Victron RJ45 UTP cable

With this energy meter, you can perform a grid-connected installation and then monitor your energy consumption or control your energy costs. Thanks to phase compensation, you could even use the 3-phase meter for single-phase systems. This allows seamless integration of decentralized energy sources and consumers into the existing power grid.

In order for an ESS to be considered in the pre-configuration, the meter must be purchased in advance or together with the system!

The storage solution – Pylontech US5000C batteries

The US3000C storage is a lithium battery of the latest generation. It has been specifically designed to meet the high demands placed on backup storage. Thanks to cutting-edge technology, the highest safety and a long service life are guaranteed even with regular deep discharging.

• Extremely cycle-resistant – over 6000 cycles at 95% DoD
• Absolutely self-safe lithium technology
• High charging and discharging capacity possible
• Integrated BMS
• Very high storage density – lightweight and compact design
• Completely maintenance-free and durable
• Pre-load function to protect the ESS system from overvoltage

The electronic core – the Victron MultiPlus-II device combination

The MultiPlus-II is a high-end device combination from Victron Energy, consisting of a 48V battery charger, inverter, and transfer switch. This combination unites the classic MultiPlus components with an external current sensor and integrated anti-island function. As a result, the functions PowerControl and PowerAssist are extended to 50A, and the potential application area is expanded to energy storage system applications. Therefore, the MultiPlus can be ideally used as a backup device in grid-connected and off-grid systems for power supply.

• 8000 W power with non-linear load, 6400 W continuous load, and 15000 W peak power
• For 48V battery voltage
• 100A transfer switch
• 110A battery charger
• Output voltage: 230 VAC, frequency: 50 Hz
• Max efficiency: 95%
• Protection class: IP22

Configuration

The MultiPlus-II is delivered unconfigured by default. You can find the configuration manual for the system in the download area. If you wish to have a pre-configuration done by us, we are happy to accommodate this for an additional charge. In this case, add the linked article "Offgridtec Pre-configuration" to your shopping cart during the order process. Shipping may take an additional 3-5 working days until the configuration has been completed.

System monitoring with the Victron Cerbo GX MK2 and GX Touch display

With the Cerbo GX MK2 communication hub, you can easily control and monitor your system. The flexible connection options maximize your system performance. Monitoring your system is possible regardless of location with the Cerbo GX MK2. With the GX Touch 50 display, you have all parameters of your system constantly in view and can make changes simply and quickly.

Safety Note: Have this complete system installed and commissioned only by a qualified electrician.