Offgridtec Backup kit retrofit kit 9.6 kWh with Pytes E-Box 4850-c battery Victron MultiPlus ii 48/3000 3-phase with electricity meter

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 Pytesthe matching MultiPlus-II device combination and a Cerbo gx 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 4.8 kWh to 9.6 kWh to use your energy efficiently and remain self-sufficient for longer if required. 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 happens so quickly (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 existing PV systems
• Grid-connected power supply
• UPS systems

What does the 3-phase Offgridtec backup system contain?

• Pytes E-Box 4850-c lfp battery 2.4kWh battery (2-4x depending on selection)
• 3x Victron MultiPlus-II 48/3000/35-32 230V
• 1x Victron Cerbo gx communication center System monitoring
• 1x Victron gx Touch 50 display panel for Cerbo gx
• 2x Victron Lynx Distributor (m8)
• 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
• 3x Offgridtec set of 5 MEGA fuses 125a 70v for 48v systems
• 1x Pytes data cable battery to Victron Inverter 3.5m MultiPlus 2
• Pytes battery inverter power cable 2m, positive (1-2x depending on selection)
• Pytes battery inverter power cable 2m, negative (1-2x depending on selection)

When selecting electricity meter

• 1x Victron vm-3p75ct Energy Meter
• 1xVictron 5m rj45 utp cable

Extended use of your backup system

The backup kit is supplied either with or without Victron electricity meter and cable, whereby an energy meter is required to set up an energy storage system.

With this electricity meter, you can carry out 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 means that seamless integration of decentralized energy sources and consumers into the existing power grid is no problem.

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

The storage solution - Pytes E-Box 4850-c

Technical data

• Battery chemistry: Lithium iron phosphate (lfp)
• Nominal voltage: 48 V
• Voltage range: 45-54 V
• Rated power: 50 Ah
• Nominal energy: 2.4 kWh
• Max. Charging current: 50 A
• Max. Discharge current: 50 A
• Operating temperature range: -10°C~50°C
• Efficiency: ≥95%
• Communication protocol: rs-232, rs-485, CAN
• Cycle life: >6000 cycles at 90% DoD
• Dimensions: 433 x 410 x 81mm (2U)
• Weight: 25 kg

The electronic core - the Victron Multiplus-II device combination

The Multiplus-II is a high-end appliance combination from Victron Energyconsisting of a 48v battery charger, inverter and transfer switch. This combination combines the classic Multiplus components with an external current sensor and integrated anti-island function. This extends the PowerControl and PowerAssist functions to 50a and extends the potential range of use to energy storage system applications. The Multiplus is therefore ideal for use as a backup device in grid-connected and off-grid power supply systems.

• 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 pre-configure the system for you, we can do this for you for an additional charge. To do this, place the article linked above "Offgridtec Pre-configuration" in the shopping cart during the ordering process. In this case, shipping may take 3-5 working days longer until the configuration has been completed.

System monitoring with the Victron Cerbo gx and gx Toch display

With the Cerbo gx communication center, you can easily control and monitor your system. The flexible connection options maximize your system performance. Thanks to the Cerbo gx, 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.