The Victron Energy MultiPlus is a powerful true sine wave inverter, a sophisticated battery charger that features adaptive charge technology, and a high-speed AC transfer switch in a single compact enclosure. Next to these primary functions, the MultiPlus has several advanced features. Two AC OutputsThe main output has no-break functionality. The MultiPlus takes over the supply to the connected loads in the event of a grid failure or when shore/generator power is disconnected. This happens so fast (less than 20 milliseconds) that computers and other electronic equipment will continue to operate without disruption. The second output is live only when AC is available on the input of the MultiPlus. Loads that should not discharge the battery, like a water heater for example, can be connected to this output. Virtually Unlimited PowerParallel operation capability provides virtually unlimited power. Up to six Multis can operate in parallel to achieve higher power output. Six 24/3000/70 units, for example, provide 15kW / 18kVA output power with 420 amps of charging capacity. Three Phase CapabilityIn addition to parallel connection, three units can be configured for three-phase output. With three strings of six parallel units, a 45 kW / 54 kVA three phase inverter and 1260A charger can be built. Split Phase OptionsTwo units can be stacked to provide 120-0-120 V, and additional units can be paralleled, up to a total of 6 units per phase, to supply up to 30 kW / 36 kVA of split phase power. PowerControl when Dealing with Limited Generator, Shoreside, or Grid PowerThe MultiPlus is a very powerful battery charger. It will therefore draw a lot of current from the generator or shoreside supply (nearly 20A per 3 kVA MultiPlus at 120 VAC). With the Multi Control Panel, a maximum generator or shore current can be set. The MultiPlus will then take account of other AC loads and use whatever is extra for charging, thus preventing the generator or shore supply from being overloaded. PowerAssistThis feature takes the principle of PowerControl to a further dimension. It allows the MultiPlus to supplement the capacity of the alternative source. Where peak power is so often required only for a limited period, the MultiPlus will make sure that insufficient shore or generator power is immediately compensated for by power from the battery. When the load reduces, the spare power is used to recharge the battery. Four Stage Adaptive Charger and Dual Bank Battery ChargingThe main output provides a powerful charge to the battery system by means of advanced 'adaptive charge' software. The software fine tunes the three stage automatic process to suit the condition of the battery and adds a fourth stage for long periods of float charging. System Configuring Has Never Been EasierAfter installation, the MultiPlus is ready to go. If settings have to be changed, this can be done in a matter of minutes with a DIP switch setting procedure. Even parallel and 3-phase operation can be programmed with DIP switches â no computer needed. Second output is live only when AC is available on the input Parallel operation capability provides virtually unlimited power PowerControl when dealing with limited generator, shoreside, or grid power | Expion360 Victron Energy MultiPlus Inverter Charger, 12/3000/120-50 120V VE. Bus (UL)