The MultiPlus-II GX brings the full feature set of the MultiPlus-II together with a built-in Venus GX communications and control centre, so there is no separate GX device to wire in. A host of advanced features, uninterrupted power supply, load limit control, and supplementing limited grid power with battery power, can all be controlled straight from a phone or smart device, with remote monitoring built in from the start.
ESS (Energy Storage Systems): the MultiPlus-II GX is the key component in a Victron ESS, combining flexibly with MPPT solar chargers or grid-tie PV inverters.
Uninterrupted AC power (UPS function): if grid, shore or generator power fails, the inverter takes over the connected loads in under 20 milliseconds, so computers and other electronics keep running without disruption.
Specification

Battery voltage: 24V nominal
Continuous power (25°C): 3,000 VA / 2,400 W
Continuous power (40°C): 2,200 W, (65°C): 1,700 W
Peak power: 5,500 W
Maximum efficiency: 94%
Maximum battery charge current: 70A, adaptive 4-stage charge algorithm
Charge voltages: absorption 28.8V, float 27.6V, storage 26.4V
AC transfer switch rating: 32A, max AC input current 32A
DC input voltage range: 19-33V
AC output: 230V, 50Hz
AC input voltage range: 187-265V, frequency range 45-65Hz
Zero load power: 13W (9W AES, 3W in Search Mode)
Communication ports: VE.Bus, VE.Can, VE.Direct, BMS-Can, WiFi, Ethernet (built-in Venus GX)
Number of AC outputs: 2, plus auxiliary output
External AC current sensor option: 50A or 100A
Protections: output short-circuit, overload, high/low battery voltage, over temperature, AC voltage on inverter output, excessive DC ripple
Operating temperature: -40°C to 65°C, fan-assisted cooling
Protection category: IP22
Dimensions: 506 x 275 x 147 mm
Weight: 20 kg
Material: steel, blue (RAL 5012)
Compliance: EN-IEC 60335-1, EN-IEC 60335-2-29, EN-IEC 62109-1, EN-IEC 62109-2
UPS standard: IEC 62040-1
Warranty: 5 years standard (extendable to 10 years); lead-acid batteries 2 years, lithium batteries 3 years