Victron Energy MultiPlus-II Inverter/Charger 12VDC - 3000VA - 120VAC 2x120 or 120/240 Split - 50A Charge & Switch UL Approved One Size. It has all the features of the MultiPlus plus an external current transformer option to implement PowerControl and PowerAssist and to optimize self-consumption with external current sensing (max. 32A). It also has all the features of the MultiGrid with built-in anti-islanding and an increasingly long list of country approvals. PowerAssistThe MultiPlus-II will prevent overload of a limited AC source such as a generator or shore power connection. First battery charging will automatically be reduced when otherwise an overload would occur. The second level will boost the output of a generator or shore side supply with power taken from the battery. ESS: Energy Storage SystemsThe MultiPlus-II is the key component in a Victron ESS system providing the flexibility to combine with MPPT Solar Chargers or Grid-tie PV Inverters. For examples and more detailed information see the ESS (Energy Storage System) manual. Uninterrupted AC power (UPS function)In the event of a grid failure or when shore or generator power is disconnected the inverter within the Multi is automatically activated and takes over the supply to the connected loads. This happens so fast (less than 20 milliseconds) that computers and other electronic equipment will continue to operate without disruption. Package Contents: Victron Energy MultiPlus-II Inverter/Charger 12VDC - 3000VA - 120VAC 2x120 or 120/240 Split - 50A Charge & Switch UL Approved Victron Energy PMP122305100: MultiPlus-II Inverter/Charger 12VDC - 3000VA - 120VAC 2x120 or 120/240 Split - 50A Charge & Switch UL Approved One Size