Overview The Victron MultiPlus-II 2x120V is an inverter and battery charger designed for North American 50A 120/240VAC split-phase systems. With a split-phase shore or generator source, it can accept and pass through both lines of a 120/240V supply for connected loads and charging. If a single-phase 120V source is connected, AC input is accepted on L1 for pass-through and charging, and the unit combines L1 and L2 outputs so you have 120V available on each output line. Important Info In inverter mode, output is 120V single phase. 240V loads are supported only when a split-phase 120/240V input source is present. Key Features PowerControl for setting a maximum grid or generator current limit to help prevent overload. PowerAssist to supplement limited shore or generator power with battery power during short peak loads (available on L1 input). Two AC outputs, a main output with fast transfer, plus an auxiliary output that is live only when external AC is present. VE.Bus communication for configuration and system integration within the Victron ecosystem. Parallel and three-phase configuration support (system design and configuration dependent). Split-phase pass-through Accepts a 120/240V split-phase source and passes through both lines for loads and charging. 120V inverter mode for both legs When inverting from the battery, L1 and L2 are connected internally so both sides of a split-phase panel can receive 120V. Auxiliary output for non-battery loads The second AC output is intended for loads that should run only when external AC is available. Technical Specs Spec Details Transfer switch 50 A Maximum AC input current 50 A each leg Inverter output voltage 120 VAC plus or minus 2 percent Frequency 60 Hz plus or minus 0.1 percent, adjustable to 50 Hz Continuous output power at 25 C 3000 VA, 2400 W Continuous output power at 40 C 2200 W Continuous output power at 65 C 1700 W Peak power 5500 W Auxiliary output Live only when external AC is present, rated 50 A each leg External AC current sensor Optional, 100 A Operating temperature range -40 to +65 C, fan assisted cooling Protection category IP22 Enclosure Steel, blue RAL 5012 120/240 VAC connection Screw terminals 21 mm2 (4 AWG) Dimensions (H x W x D) 578 x 275 x 148 mm (23 x 11 x 6 inch) Weight 22 kg (48 lb) Safety standard UL 458, EN-IEC 60335-1, EN-IEC 60335-2-29 12V Specs Spec Details Model 12/3000/120-50 DC input voltage range 9.5 to 17 V Maximum efficiency 93 percent Maximum battery charge current 120 A Charger AC input Split phase 180 to 280 VAC, single phase 90 to 140 VAC, 45 to 65 Hz 24V Specs Spec Details Model 24/3000/70-50 DC input voltage range 19 to 33 V Maximum efficiency 94 percent Maximum battery charge current 70 A Charger AC input Split phase 180 to 280 VAC, single phase 90 to 140 VAC, 45 to 65 Hz Resources and Downloads Datasheet Manual Frequently Asked Questions (click to expand) 1. Does it provide 240V when running from the battery? No. In inverter mode the output is 120V single phase. 240V loads are supported only when a split-phase 120/240V input source is present. 2. What does 2x120V mean for a split-phase panel? The unit can supply both L1 and L2 sides of a typical split-phase panel with 120V. With external split-phase power present, it can pass through both lines of 120/240V to loads. 3. What happens if I only have a single-phase 120V hookup? AC input is accepted on L1 for pass-through and charging, and the unit combines L1 and L2 outputs so you have 120V available on each output line. 4. What are the two AC outputs used for? AC-out-1 is the main output for loads. AC-out-2 is an auxiliary output that is live only when external AC is present, intended for loads you do not want to run from the battery. 5. Can I limit shore or generator current? Yes. PowerControl allows a maximum input current to be set. PowerAssist can supplement short peak loads with battery power (available on L1 input). 6. Which battery voltages are supported? This product family includes 12V and 24V models. Choose the variant that matches your battery bank voltage. 7. Can I expand the system later? Victron documents parallel and three-phase configuration support. System design and configuration determine what is possible and what additional components may be required. 8. Is AC-out-2 available when there is no external AC source? No. The auxiliary output switches off when no external AC source is available.
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