Victron Energy Inverter/Charger 8kW Quattro 48/10000/140-100/100 120V QUA483100102

The Victron Energy Quattro 48/10000/140-100/100 120V is the highest-output model in Victron's Quattro 120V inverter charger line, delivering 8,000W of continuous real power from a 48V battery bank with 96% maximum efficiency, a 140A battery charger, and the dual AC input architecture that distinguishes the Quattro from single-input alternatives. UL1741 listed and compatible with lithium-ion and lead-acid batteries, it is built for larger off-grid homes, critical backup installations, and commercial applications where output capacity and system integration depth both matter.

Key specifications

• Continuous output power: 10,000VA / 8,000W at 77°F (25°C); 6,500W at 104°F (40°C); 4,500W at 149°F (65°C)
• Peak power: 20,000W
• AC output voltage / frequency: 120VAC ±2%; 60Hz ±0.1%
• DC input voltage: 48V nominal (38–66VDC operating range)
• AC inputs: 2 independent inputs; 90–140VAC; 45–65Hz; 2×100A maximum feed-through current; power factor 1
• Battery charger: 140A house battery; absorption 57.6VDC; float 55.2VDC; storage 52.8VDC; battery temperature sensor included
• Maximum efficiency: 96%
• Zero load power: 60W (on); 40W (AES mode); 15W (search mode)
• Auxiliary output: 50A (live only when AC input is present)
• Programmable relays: 3× (alarm, DC undervoltage, generator start/stop)
• Communication: VE.Bus (parallel/split-phase/three-phase, remote monitoring); 2× general purpose ports; remote on/off
• Battery compatibility: Lithium-ion (including LiFePO4) and lead-acid
• Operating temperature: −40°F to 149°F (−40°C to 65°C); humidity max. 95% non-condensing
• Enclosure: IP21; aluminium (blue RAL 5012)
• Certifications: UL1741; EN-IEC 60335-1, EN-IEC 60335-2-29, EN-IEC 62109-1
• Dimensions: 22.6 H × 19.2 W × 13.6 D in. (572 × 488 × 344 mm); 128 lbs. (58 kg)

96% efficiency at the 48V advantage

The 48/10000 reaches 96% maximum efficiency—the highest in the Quattro 120V range and a meaningful improvement over the 94% typical of 12V and 24V models. At 8,000W of continuous output, the difference in conversion losses directly affects both battery runtime and thermal management requirements. The 48V system voltage also reduces the current draw on battery cabling for equivalent power output, allowing smaller wire gauges and reducing resistive losses throughout the DC side of the system. For large off-grid homes and commercial installations where the inverter runs continuously, the efficiency gain compounds materially over time.

Dual AC inputs with PowerControl and PowerAssist

The Quattro accepts two independent AC inputs—grid and generator, or two generators—and switches between them automatically based on source availability. PowerControl sets a current ceiling on each input so the unit draws only what remains after other running loads are accounted for, preventing nuisance generator trips or utility breaker overloads during charging. PowerAssist goes further: when a connected generator or shore power supply cannot meet instantaneous peak demand alone, the Quattro draws the shortfall from the battery in real time—effectively supplementing the AC source rather than simply backing it up. When demand drops, the surplus AC capacity recharges the battery. This allows a smaller, more fuel-efficient generator to serve an 8kW-capable system without risk of overload.

Two AC outputs for load management

The main AC output provides sub-20ms no-break transfer to battery-backed inverter power when AC input is lost, keeping computers, networking equipment, and sensitive electronics running without interruption. The auxiliary 50A output is live only when AC input is present—making it the correct connection point for loads that must never draw from the battery, such as water heaters, resistance heating elements, and high-draw appliances that would deplete storage rapidly during an outage. This two-output architecture provides built-in load shedding without requiring external contactors or load management hardware.

Application scenarios

• Large off-grid residence: 8,000W continuous at 48V covers whole-home loads including HVAC, well pumps, and kitchen appliances with 20,000W peak for motor inrush.
• Critical facility backup: Sub-20ms transfer and dual AC inputs keep mission-critical loads online through both utility outages and generator switchovers without interruption.
• Marine and large vessel installations: Shore power on AC input 1, onboard generator on AC input 2; PowerAssist prevents shore breaker trips while handling peak hotel loads.
• Scalable C&I systems: Three units configure for three-phase output via VE.Bus; up to four sets of three units parallel for up to 120kVA and more than 1,600A of charging capacity.

VE.Bus ecosystem and remote monitoring

The Quattro 48/10000 integrates fully into Victron's VE.Bus architecture for parallel, split-phase, and three-phase multi-unit configurations. When paired with a Cerbo GX or Ekrano GX device, the system connects to Victron's VRM portal for free remote monitoring, remote settings changes, and alarm delivery by email or push notification. On-site control options include the Digital Multi Control Panel, the VE.Bus Smart Dongle for Bluetooth access via the VictronConnect app, and the Interface MK3-USB for full configuration via VEConfigure software. Three programmable relays handle general alarm signaling, DC undervoltage notification, and automatic generator start/stop.

System compatibility

The Quattro 48/10000/140-100/100 operates on a 48V battery bank across 38–66VDC and supports lithium-ion (including LiFePO4) and lead-acid chemistries with a built-in battery temperature sensor for charge compensation. Battery connections use four M8 bolts (two positive, two negative) to accommodate large-gauge cabling for the 140A charge current; AC wiring uses M6 bolt terminals. It integrates natively with Victron's full ecosystem: MPPT solar chargers, GX monitoring devices, SmartShunt and BMV battery monitors, and Victron lithium battery systems. Off-grid, grid-interactive, and self-consumption configurations are set up using Victron's Assistant software framework via VE.Bus.

Why choose the Victron Energy Quattro 48/10000/140-100/100?

The Victron Energy Quattro 48/10000/140-100/100 120V is the right choice for 48V system builders who need the Quattro's dual AC input architecture and PowerAssist capability at the highest output level in the 120V range. At 96% efficiency, 8,000W continuous real power, a 140A battery charger, and UL1741 certification, it is the most capable single-unit option in Victron's Quattro 120V line—backed by the full depth of the VE.Bus and VRM ecosystem for systems that demand both high output and high integration.