Offgridtec backup kit retrofit kit with Pytes E-Box 48100R-C battery Victron Multiplus II 48/10000 3-phase

The 3-phase backup systems from Offgridtec are ideal for emergency power supply or for expanding an existing solar system. The systems contain lithium-ion batteries from Pytes, the matching MultiPlus-II inverters and a Cerbo GX MK2 from Victron Energy for system monitoring. This allows you to secure your energy supply even in the event of a power failure.

With the batteries from Pytes, you have a storage capacity of 61.44 kWh to 71.68 kWh, depending on your choice, to use your energy efficiently and remain self-sufficient for longer if required. Thanks to the large capacity, the system is perfect for large solar systems. The UPS function of the MultiPlus ensures that the supply to the connected consumers is maintained even in the event of a grid fault. 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
• Perfectly suited for large solar systems
• Off-grid solar systems (stand-alone systems)
• Retrofitting existing PV systems
• Grid-connected power supply
• UPS systems

What does the Offgridtec backup system contain?

• Pytes E-Box-48100R-C 100Ah 51V LiFePO4 battery (12 or 14x depending on selection)
• 3x Victron MultiPlus-II 48/10000/140-100/100 230V
• 1x Victron Energy Lynx Distributor (M8)
• 1x Victron Energy Lynx Power In (M8)
• 1x 3m Victron Energy RJ45 UTP cable
• 6x Offgridtec 1m battery cable 50mm²
• 1x Victron Cerbo GX MK2 communication center system monitoring
• 1x Victron GX Touch 50 display panel for Cerbo GX
• 2x set of 5 Offgridtec MEGA fuse 200A 70A
• 1x Pytes data cable battery to Victron Inverter 3.5m MultiPlus 2
• 6x Pytes battery inverter power cable 2m, positive
• 6x Pytes battery-inverter power cable 2m, negative
• 2x 0.9m Victron RJ45 UTP cable
• 1x Victron MK3-USB VE.Bus to USB interface

When selecting electricity meter

• 1x Victron VM-3P75CT electricity meter 75A/phase 3-phase
• 1x 3m Victron Energy RJ45 UTP cable

The Multiplus device combination is preconfigured to match the Pytes batteries.

Extended use of your backup system

The backup kit is supplied with or without a Victron electricity meter and cable. However, an energy meter is essential for setting up an energy storage system.

With this electricity meter, you can carry out a grid-parallel installation and then monitor your energy consumption and energy costs. Thanks to phase compensation, it is also possible to use the 3-phase meter in 1-phase systems. This enables the seamless integration of decentralized energy sources and consumers into the existing power grid.

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

Who is the backup kit suitable for?

Thanks to its high storage capacity, the Offgridtec backup system is ideal for use in large solar systems.

• private households: Large family and multi-family homes to meet daily energy needs and keep essential appliances running during power outages.
• Commercial businesses: Retail stores and construction sites to keep operations running during power outages and avoid financial losses.
• Agriculture: Farmers can use it to safely operate irrigation systems and electrical machinery, even in remote areas without access to grid power.
• Municipalities and emergency management: Indispensable for services and emergency centers to ensure energy supply in crisis situations.

The storage solution - Pytes E-Box-481000R-C

The Pytes E-BOX 48100R-C is a state-of-the-art LFP battery with a capacity of 100 Ah. It impresses with its high level of safety, well thought-out design and impressive performance. This compact battery is easy to install, requires no maintenance and can be used as the basic building block of an energy storage system by connecting it in parallel.

Technical specifications

• 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
• Discharging temperature: -10~50°C
• Efficiency: ≥95%
• Communication protocol: RS-232, RS-485, CAN
• Cycle life: >6000 cycles at 90% DoD
• Dimensions: 440 x 620 x 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 extends the potential range of use to ESS applications.

• 10000 W power with non-linear load
• 8000 W continuous load and 18000 W peak power
• for 48V battery voltage
• 100A transfer switch
• 140A battery charger
• Output voltage: 230 VAC, frequency: 50 Hz
• max. efficiency: 95
• Protection class: IP22

System monitoring with the Victron Cerbo GX MK2 and GX Toch 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.