One Day Deal Quattro-II 12/3000/120-50/50 2×120 volt

Victron Quattro-II 12/3000/120-50 2x120V inverter/charger for 12V battery systems, featuring 3000 VA inverter output, 120A charging, two AC inputs, two AC outputs, 50A transfer switching, PowerControl, PowerAssist, and 120/240V split-phase input support.

The Victron Quattro-II 12/3000/120-50 2x120V is a 12V inverter/charger designed for mobile, marine, off-grid, backup, and alternative energy systems that need flexible AC input handling and dependable battery-powered output. It can accept two independent AC sources, such as shore power and generator power, and automatically connects to the active source.

This 2x120V model supports split-phase 120/240V input or single-phase 120V input. When AC power is available, the output mirrors the AC input. When operating from battery power, the inverter provides 120V single-phase output and connects both output lines together so 120V loads on either line can be powered. 240V loads are supplied only when a split-phase AC source is present, helping prevent heavy 240V loads from discharging the battery.

The Quattro-II includes PowerControl and PowerAssist to help manage limited shore, generator, or grid power. PowerControl prevents AC source overload by limiting current draw, while PowerAssist supplements insufficient AC input with battery power during short peak-load periods. The main output provides no-break functionality, with less than 18 ms transfer time on L1 for sensitive electronics.

Key Features

• 3000 VA inverter/charger for 12V battery systems
• 2x120V design for split-phase 120/240V input or single-phase 120V input
• Always provides 120V output when operating in inverter mode
• Two AC inputs for shore power, generator, grid, or dual-generator systems
• Automatically connects to the active AC source
• Two AC outputs, including one auxiliary output for loads that should not discharge the battery
• 50A transfer switch
• Maximum AC input current of 50A on each leg
• PowerControl and PowerAssist available on L1 input
• Main output has no-break functionality
• L1 transfer time less than 18 milliseconds
• L2 transfer time approximately 40 milliseconds
• Supports parallel operation with up to 6 Quattro units
• Supports three-phase configuration with three units of the same model
• Configurable with VictronConnect app or VEConfigure software
• Compatible with GX devices and VRM remote monitoring

Technical Specifications

• Manufacturer: Victron Energy
• Product series: Quattro-II 2x120V Inverter/Charger
• Model: 12/3000/120-50 2x120V
• Nominal battery voltage: 12V DC
• Inverter rating: 3000 VA
• Maximum battery charge current: 120 A
• Transfer switch: 50 A
• Maximum AC input current: 50 A each leg
• PowerControl and PowerAssist: Yes, on L1 input
• DC input voltage range: 9.5–17 V
• Output in inverter mode: 120 VAC ± 2%
• Output frequency: 60 Hz ± 0.1%
• Continuous output power at 25°C: 3000 VA
• Continuous output power at 25°C: 2400 W
• Continuous output power at 40°C: 2200 W
• Continuous output power at 65°C: 1700 W
• Maximum apparent feed-in power: 2500 VA
• Peak power: 5500 W
• Maximum efficiency: 93%
• Zero-load power: 15 W
• Zero-load power in AES mode: 10 W
• Zero-load power in Search mode: 4 W
• AC input, split-phase: 180–280 VAC, 45–65 Hz
• AC input, single-phase: 90–140 VAC, 45–65 Hz
• Absorption charge voltage: 14.4 V
• Float charge voltage: 13.8 V
• Storage mode voltage: 13.2 V
• Battery temperature sensor: Yes
• Auxiliary output: 50 A each leg
• Optional external AC current sensor: 100 A
• Programmable relay: Yes
• VE.Bus communication port: Yes
• General purpose communication ports: 2x
• Remote on/off: Yes
• Operating temperature range: -40°C to +65°C / -40°F to 150°F
• Cooling: Fan assisted
• Humidity: Maximum 95%, non-condensing
• Enclosure material and color: Steel, blue RAL 5012
• Protection category: IP22
• Battery connection: 2×2 M8 bolts
• AC connection: Screw terminals, 21 mm² / 4 AWG
• Weight: 32.8 kg / 52 lb
• Dimensions: 579 x 319 x 168 mm / 23 x 13 x 7 in

Applications

• RV electrical systems
• Marine and yacht power systems
• Vehicle-based power systems
• Off-grid power systems
• Land-based backup power systems
• Shore power and generator-supported systems
• Alternative energy systems
• Grid-connected and off-grid PV systems
• Battery backup for 120V loads

Ideal For

• 12V battery systems requiring inverter and charger functionality
• Installations using both shore power and generator power
• Systems needing 120/240V split-phase pass-through with 120V inverter output
• Users who want to prevent 240V heavy loads from draining the battery
• RV, marine, and mobile applications with split-phase AC distribution
• Systems requiring fast transfer for computers and sensitive electronics
• Installations needing Victron remote monitoring and configuration

Protection Features

• Output short circuit protection
• Overload protection
• Battery voltage too high protection
• Battery voltage too low protection
• Temperature too high protection
• 120 VAC on inverter output protection
• Input voltage ripple too high protection

System Compatibility

• Compatible with 12V battery systems
• Compatible with split-phase 120/240V AC input
• Compatible with single-phase 120V AC input
• Compatible with VE.Bus systems for parallel operation, three-phase operation, monitoring, and system integration
• Compatible with Cerbo GX and Ekrano GX for system control and monitoring
• Compatible with VRM Portal for remote monitoring and remote settings access
• Compatible with VRM app for smartphone and tablet monitoring
• Compatible with VictronConnect app for monitoring and configuration
• Compatible with VE.Bus Smart Dongle for Bluetooth monitoring and control
• Compatible with Digital Multi Control Panel
• Compatible with MK3-USB interface for VEConfigure setup
• Optional 100A:50mA current sensor supports PowerControl, PowerAssist, and self-consumption optimization

Check Before Ordering

• Confirm this is the 12V model for your battery bank.
• Confirm your system requires the 2x120V Quattro-II configuration.
• Confirm whether your AC source is split-phase 120/240V or single-phase 120V.
• Confirm connected loads are compatible with 120V inverter output.
• Do not rely on this inverter to power 240V loads from battery mode; 240V loads are supplied only when split-phase AC input is available.
• Confirm the 3000 VA / 2400 W continuous output rating is sufficient for your loads.
• Confirm surge requirements before using with motors, pumps, compressors, or air-conditioning equipment.
• Confirm your battery bank can support up to 120A charging.
• Confirm wiring and protection are suitable for 50A transfer and high-current DC operation.
• Confirm available installation space for the 23 x 13 x 7 in enclosure.
• Use qualified installation for AC and DC wiring.