Victron EasySolar-II 48/4k5/55-32 MPPT 250/70 GX – integrated inverter/charger with solar MPPT controller

Victron Energy EasySolar-II 48/4k5/55-32 MPPT 250/70 GX is an integrated power system combining a MultiPlus-II inverter/charger, a SmartSolar MPPT 250/70 solar charge controller and a GX control device in one enclosure. The components are pre-wired and configured, reducing installation complexity, saving space and minimising the amount of required cabling.

Designed for 48 V battery systems, the unit provides 230 V AC power from the battery while also charging the battery from the utility grid and photovoltaic array. PowerControl and PowerAssist help manage limited grid or generator capacity, while the integrated GX device provides control, monitoring and system integration.

Key benefits

• Combines an inverter/charger, SmartSolar MPPT controller and GX control device in one enclosure.
• 4 kW continuous inverter output at 25°C.
• Time-limited output of 4.5 kW for up to 2 hours and 6 kW for up to 25 minutes from a cold start.
• Peak power up to 7 kW for 1 minute.
• 230 VAC pure sine-wave output at 50 Hz.
• Integrated SmartSolar MPPT 250/70 with up to 70 A charging current and 4000 W maximum PV power.
• Maximum PV open-circuit voltage of 250 V.
• Maximum inverter efficiency of 95% and maximum MPPT efficiency of 99%.
• Supports lithium, lead-acid, zinc-bromine and other battery chemistries when the charger is configured correctly.
• PowerControl and PowerAssist for managing and supplementing available AC input power.
• VE.Bus support for parallel and three-phase operation.
• Remote on/off and a programmable relay.
• Operating temperature from -40°C to +65°C with fan-assisted cooling.

Applications

Suitable for stationary backup and off-grid systems, energy storage installations, marine systems, campervans and caravans, professional vehicles and other applications requiring integrated management of solar generation, battery storage and AC power.

Technical specifications

• Manufacturer: Victron Energy
• Model: EasySolar-II 48/4k5/55-32 MPPT 250/70 GX
• SKU: PMP482457010
• Nominal battery voltage: 48 V
• DC input voltage range: 38–60 V
• Output in inverter mode: 230 VAC ±2%, 50 Hz ±0.1%
• Continuous output power at 25°C: 4 kW
• Continuous output power at 40°C: 3.7 kW
• Continuous output power at 65°C: 3 kW
• Time-limited power 1: 4.5 kW for 2 hours
• Time-limited power 2: 6 kW for 25 minutes
• Peak power: 7 kW for 1 minute
• Maximum inverter efficiency: 95%
• Zero-load power: 20 W
• Zero-load power in AES mode: 13 W
• Zero-load power in Search mode: 8 W
• AC input voltage: 187–265 VAC
• AC input frequency: 45–65 Hz
• Maximum AC input current: 32 A
• Transfer switch: 32 A
• Maximum AC charging current: 55 A at 25°C; 50 A at 40°C
• Absorption voltage: 57.6 V
• Float voltage: 55.2 V
• Storage voltage: 52.8 V
• Charging algorithm: four-stage adaptive with BatterySafe mode
• Supported battery chemistries: lithium, lead-acid, zinc-bromine and others when configured according to the battery manufacturer’s specifications
• Solar controller: SmartSolar MPPT 250/70-Tr
• Maximum MPPT output current: 70 A
• Maximum PV power: 4000 W
• Maximum PV open-circuit voltage: 250 V
• Maximum MPPT efficiency: 99%
• MPPT self-consumption: 20 mA
• AC-out-2 auxiliary output: yes, 32 A
• External AC current sensor: optional, 100 A
• Operating temperature: -40°C to +65°C
• Cooling: fan-assisted
• Maximum humidity: 95%, non-condensing
• Maximum altitude: 2000 m
• Protection category: IP21
• Enclosure material and colour: steel, blue RAL 5012
• Battery connection: M8 bolts
• AC connection: screw terminals for 13 mm² (6 AWG)
• Dimensions H × W × D: 591 × 275 × 254 mm
• Weight: 28.8 kg
• Protection features: output short circuit, overload, excessive battery voltage, low battery voltage, over-temperature, 230 VAC on the inverter output and excessive input-voltage ripple

Connectivity and control

• VE.Bus communication for parallel operation, three-phase systems, remote monitoring and system integration.
• GX interfaces: VE.Can, USB, Ethernet, VE.Direct and Wi-Fi.
• Integrated GX control device with a 2 × 16-character display.
• The SmartSolar MPPT section can be configured with VictronConnect; Bluetooth connectivity is used for configuring the MPPT controller.
• Supports remote monitoring through the Victron GX ecosystem and VRM when configured as part of a compatible system.
• Remote on/off input.
• Programmable relay configurable for general alarm, DC under-voltage or generator start/stop control.
• Supports parallel and three-phase configurations with compatible units.