Offgridtec Backup Kit 5.12kWh Pytes V5a Battery - Victron MultiPlus II 48/3000 Inverter 3-Phase
Product is expected to be back in stock on 19 November 2025
Offgridtec's 3-phase backup systems are ideal for emergency power supply or for expanding an existing solar system. In addition to lithium-ion batteries from Pytes, the systems include the appropriate MultiPlus-II device combination and a Cerbo GX MK2 from Victron Energy for system monitoring. This allows you to ensure your energy supply even in the event of a power failure.
With Pytes batteries, you have a storage capacity of 5.12kWh to 10.24kWh to use your energy efficiently and remain self-sufficient for longer if necessary. Thanks to the UPS function, the MultiPlus remains switched on even in the event of a mains failure and takes over the supply to the connected consumers. The switchover is so fast (in less than 20 milliseconds) that uninterrupted operation of computers and other electronic devices can be guaranteed.
Areas of application for the Offgridtec Backup Kit:
- Emergency power supply
- Off-grid solar systems (stand-alone systems)
- Retrofitting of existing PV systems
- Grid-connected power supply
- UPS systems
What does the 3-phase Offgridtec backup system include?
- Pytes V5a LiFePO4 battery 5.12kWh 51.2V 100Ah (1x or 2x depending on selection)
- 3x Victron MultiPlus-II 48/3000/35-32 230V
- 1x Victron Cerbo GX MK2 communication center System monitoring
- 1x Victron GX Touch 50 display panel for Cerbo GX
- 2x Victron Lynx Distributor (M10)
- 1x Victron MK3-USB VE.Bus to USB interface
- 3x Offgridtec® 1m battery cable 35mm² M8 eyelets on both sides
- 2x 0.9m Victron RJ45 UTP cable
- 1x 3m Victron RJ45 UTP cable
- 1x Offgridtec set of 5 MEGA fuses 125A 70V for 48V systems
- 1x Pytes data cable battery to Victron GX 3.5m
- Pytes battery connection cable set V5a 2m M10 50mm² to Amphenol 8mm (1x or 2x depending on selection)
If electricity meter is selected
Extended use of your backup system
The backup kit is available with or without a Victron electricity meter and cable, although an energy meter is required to set up an energy storage system.
With this electricity meter, you can set up a grid-parallel installation and then monitor your energy consumption and control your energy costs.Thanks to phase compensation, you can even use the 3-phase meter for 1-phase systems. This makes seamless integration of decentralized energy sources and consumers into the existing power grid no problem at all.
In order for an ESS to be included in the preconfiguration, the meter must be purchased in advance or with the system!
The storage solution – Pytes V5a
Technical data
- Battery chemistry: LiFePO4
- Nominal voltage: 51.2 V
- Voltage range: 44.8 - 57.6 V
- Network capacity: 100 Ah
- Nominal energy: 5.12 kWh
- Recommended charging current/discharging current: 75 A
- Max. continuous charging current/discharging current: 100 A
- Peak charge/discharge: 150 A (15 sec.)
- Operating temperature range: -10°C to +55°C
- Heating system: 8-10°C/h
- Weight: 44 kg
- Dimensions: 440 x 530 x 140 mm
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 combines the classic Multiplus components with an external current sensor and integrated anti-islanding function. This extends the PowerControl and PowerAssist functions to 50A and expands the potential range of applications to include energy storage systems. The Multiplus is therefore ideal for use as a backup device in grid-connected and off-grid systems for power supply.
- 3000W power with non-linear load
- 2400W continuous load – 6000W peak power
- for 48V battery voltage
- 32A transfer switch
- 35A battery charger
- Output voltage: 230 VAC, frequency: 50 Hz
- Max. efficiency: 95%
- Protection class: IP22
Configuration
The MultiPlus-II is delivered unconfigured as standard. You can find the configuration instructions for the system here in the download area. If you would like us to preconfigure the device for you, we will be happy to do so for an additional charge. To do this, add the item "Offgridtec Preconfiguration" linked above to your shopping cart during the ordering process. In this case, shipping may take 3-5 business days longer until the configuration has been completed.
System monitoring with the Victron Cerbo GX MK2 and GX Touch Display
With the Cerbo GX MK2 communication center, you can easily control and monitor your system. The flexible connection options maximize your system performance. Thanks to the Cerbo GX MK2, you can control your system from anywhere. With the GX Touch 50 display, you always have an overview of all your system parameters and can make changes quickly and easily.
Safety note: Only have this complete system installed and commissioned by a qualified electrician.
Manufactuerer Information
Offgridtec AG
Offgridtec AG
Im Gewerbepark 11
84307 Eggenfelden
Germany
Mail: info@offgridtec.com
Tel.: +49 8721 9199400
