MultiPlus-II 48 / 4k5 55-32 230V
Product reference: 39-8719076065975

The Victron MultiPlus-II 48/4k5/55-32 230V is an advanced 48V inverter-charger with a power output of 4.5 kW, combining a pure sine wave inverter, battery charger, and automatic UPS switch with virtually seamless switching in a single package. Designed for off-grid and grid-connected systems, it offers PowerControl and PowerAssist functions (support for limited power sources, e.g., grid or generator), parallel and three-phase operation, and remote monitoring and configuration via Victron platforms (VRM, mobile apps), making it the flexible heart of a modern energy storage system.

MultiPlus-II 48 / 4k5 55-32 230V

Product reference: 39-8719076065975

The Victron MultiPlus-II 48/4k5/55-32 230V is an advanced 48V inverter-charger with a power output of 4.5 kW, combining a pure sine wave inverter, battery charger, and automatic UPS switch with virtually seamless switching in a single package. Designed for off-grid and grid-connected systems, it offers PowerControl and PowerAssist functions (support for limited power sources, e.g., grid or generator), parallel and three-phase operation, and remote monitoring and configuration via Victron platforms (VRM, mobile apps), making it the flexible heart of a modern energy storage system.

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667,11 €
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Guarantee
24 month

Delivery from Europe in
5 - 8
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Inverter-charger MultiPlus-II 48/4k5/55-32


An advanced 3-in-1 device combining an inverter, battery charger, and automatic UPS. It provides continuous power, intelligent energy management, and flexible expansion for home, off-grid, RV, and commercial installations. The MultiPlus-II keeps your devices running during power outages by automatically switching to battery power—without any noticeable interruption to the user. Intelligent features automatically manage energy consumption and supply, limiting grid or generator overload and supplementing battery power when demand is too high.


The most important advantages



  • Multifunctionality and reliability - inverter, charger and UPS in one housing.

  • Advanced energy management - PowerControl and PowerAssist limit network consumption and support sources under heavy load.

  • Flexible configuration - parallel and three-phase operation, full remote monitoring and control via the Victron VRM portal.



Main features



  • Integration with energy storage (ESS)

  • PowerAssist and PowerControl functions

  • Power supply during a network failure (UPS)

  • Two independent AC outputs

  • Parallel and three-phase operation

  • Remote monitoring and configuration (VRM, VictronConnect)

  • Automatic UPS mode - fast switching

  • Compatibility with PV systems

  • Victron Advanced Communications


Key advantages



  • Integration with energy storage: maximizing self-consumption and flexible work scenarios.

  • Two AC outputs: one always active, the other only when the network is available.

  • Scalability: up to six devices in parallel or 3-phase configuration.

  • Remote supervision: full control online via Victron VRM or locally via VictronConnect.

  • UPS: instant switching between mains and battery.

  • PV-ready: cooperation with Victron on-grid and off-grid inverters and charge controllers.




Technical specifications:


Model



  • MultiPlus-II 48/4k5/55-32 230V


Power / Transfer



  • PowerControl / PowerAssist: Yes

  • Transfer switch: 32 A

  • Max AC input current: 32 A


Inverter (DC input)



  • Input voltage range: 38-60V


Output (AC)



  • Tension: 230 VAC ± 2%

  • Frequency: 50Hz ± 0.1%

  • Output power @25°C: 4 kW

  • Output power @40°C: 3.7 kW

  • Output power @65°C: 3 kW

  • Time-limited power 1 (cold start): 4.5 kW for 2 hours

  • Time-limited power 2 (cold start): 6 kW for 25 minutes

  • Max apparent supply power: 4 kW

  • Peak power: 7 kW / 1 min

  • Max efficiency: 95%

  • No-load power consumption: 20 W

  • Consumption in AES mode: 13 W

  • Download in search mode: 8 W


Charger



  • AC Input: 187-265 VAC, 45-65 Hz

  • Absorption voltage: 57.6V

  • Float voltage: 55.2V

  • Storage mode: 52.8V

  • Max charging current @25°C: 55 A

  • Max charging current @40°C: 50 A

  • Battery types: lithium, lead-acid, zinc-bromine and others

  • Battery temperature sensor: Yes


General / Controls



  • Auxiliary output: yes (32A)

  • External current sensor (optional): 50 A or 100 A

  • Programmable relay: Yes

  • Security: ag

  • VE.Bus Port: parallel and three-phase operation, monitoring, integration

  • General purpose ports: 2×

  • Remote on/off: Yes

  • Operating temperature: −40 +65°C (fan cooling)

  • Humidity (non-condensing): max 95%


Mechanics / Connectors



  • Material and color: steel, blue RAL 5012

  • Protection category: IP21

  • Battery connection: M8 screws

  • 230V AC connection: screw terminals 13 mm² (6 AWG)

  • Libra: 21 kg

  • Dimensions (H × W × D): 590 × 275 × 149 mm


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