Offgridtec Backup Kit Retrofit Kit 20.5kWh with Pytes 48100R-TE+ Battery Victron MultiPlus-II 48/5000 3-phase

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 inverters 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.

Depending on your selection, Pytes batteries offer a storage capacity of 20.5 kWh to 30.7 kWh, allowing you 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 Offgridtec backup system include?

• Pytes E-Box 48100R-TE+ 5.12 kWh 51.2V LiFePO4 battery (4x or 6x depending on selection)
• 3x Victron MultiPlus-II 48/5000/70-50 230V
• 1x Victron Cerbo GX MK2 communication center System monitoring
• 1x Victron GX Touch 50 display panel for Cerbo GX
• 1x Victron Energy Lynx Power In
• 1x Victron Lynx Distributor
• 2x 0.9m Victron RJ45 UTP cable
• 1x 3m Victron RJ45 UTP cable
• 1x Victron MK3-USB VE.Bus to USB interface
• 1x Pytes data cable battery to Victron inverter 3.5m MultiPlus 2
• Pytes battery inverter power cable 2 m, positive (2-3x depending on selection)
• Pytes battery inverter power cable 2 m, negative (2-3x depending on selection)
• 2x Offgridtec set of 5 MEGA fuses 100A 70V for 48V systems
• 3x Offgridtec® 1m battery cable 50mm² M8 eyelets on both sides

If you select electricity meter:

• 1x Victron VM-3P75CT Energy Meter
• 1x Victron 5m RJ45 UTP cable

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 coststhanks 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 a preconfiguration, the meter must be purchased in advance or with the system!

The storage solution – Pytes E-Box-481000R TE

The Pytes E-BOX 48100R TE+ is a LiFePO4 energy storage system with a capacity of 5.12 kWh and impresses with its high level of safety, well-thought-out design, and consistent performance in continuous operation. The compact, maintenance-free battery can be installed quickly and expanded into larger storage systems using parallel connections. Ideal as a reliable basis for your individual storage project.

Technical data

• Battery chemistry: Lithium iron phosphate (LFP)
• Nominal voltage: 51.2 V
• Voltage range: 47.5-57.6 V
• Nominal power: 100 Ah
• Nominal energy: 5.12 kWh
• Max. charging current: 50 A
• Max. discharge: 50 A
• Charging temperature: 0~50°C
• Discharge temperature: -10~50°C
• Efficiency: ≥95%
• Communication protocol: RS-232, RS-485, CAN
• Cycle life: >6000 cycles at 90% DoD
• Dimensions: 440 × 620 × 117 mm
• Weight: 51 kg

The electronic core – the Victron Multiplus-II device combination

The Multiplus-II is a high-end device combination from Victron Energy that combines classic Multiplus components with an external current sensor and integrated anti-islanding function. This extends the PowerControl and PowerAssist functions to 100 A and expands the potential range of applications to include ESS applications.

• 5000 W power with non-linear load
• 4000 W continuous load and 9000 W peak power
• for 48V battery voltage
• 50A transfer switch
• 70 A 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 can do so for an additional charge. To do this, add the item "Offgridtec Preconfiguration" 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.