Victron Victron
Victron

Victron

Victron MultiPlus-II 48/3000/35-50 120V

£1,029.60
Tax included.
PMP482305100
A 120 V 3000 VA inverter/charger for 48 V systems, combining a pure sine wave inverter, a 35 A charger and PowerAssist in one unit. Built for marine, mobile and off-grid use. Transfers loads in under 20 ms on grid failure.
✓ Available for collection or delivery in ~2 days

Pickup available at Mercury Yacht Harbour

Usually ready in 2-4 days

Description

The Victron MultiPlus-II 48/3000/35-50 is a 120 V multifunctional inverter/charger for professional marine, vehicle and off-grid systems built around a 48 V battery bank. It combines a 3000 VA pure sine wave inverter with a 35 A battery charger in one compact enclosure, supplying clean 120 VAC mains power from the batteries. A 48 V architecture keeps DC currents low, which simplifies cabling on larger installations.

PowerAssist is the standout capability. When shore or generator power is limited, the MultiPlus-II adds energy from the battery to cover load peaks, preventing the source from overloading while still using any spare capacity to recharge. The integrated transfer switch returns loads to the inverter in under 20 milliseconds during a grid failure, so sensitive electronics keep running without disruption.

Designed for energy storage and solar self-consumption, the MultiPlus-II works with both MPPT solar chargers and grid-tie inverters and can be paralleled, split-phased or three-phased for higher output. An external current sensor extends PowerControl and PowerAssist up to 100 A. Setup, monitoring and control run through VictronConnect, a GX device and the free VRM portal.

PRODUCT DETAILS

  • 3000 VA pure sine wave inverter with a 120 VAC, 60 Hz output for 48 V battery banks
  • 35 A multi-stage battery charger with battery temperature sensing
  • PowerAssist boosts limited shore or generator supply with battery power to avoid overload
  • PowerControl limits AC input current to protect the grid or generator
  • Uninterrupted transfer to inverter in under 20 milliseconds during a power failure
  • Parallel, split-phase and three-phase capable, up to six units for higher output
  • ESS and solar ready, compatible with MPPT solar chargers and grid-tie inverters
  • Monitoring and configuration via VictronConnect, GX devices and the free VRM portal

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Key specifications

System voltage48 V
Continuous output power3000 VA
Continuous output power at 25°C2400 W
Peak power5500 W
Maximum charge current35 A
Transfer switch50 A

AC inputs

AC input voltage range90 to 140 VAC
AC input frequency55 to 65 Hz
Maximum feed-through current50 A

Inverter

DC input voltage range38 to 66 V
Output voltage / frequency120 VAC ±2%, 60 Hz ±0.1%
Cont. output power at 25°C (VA)3000 VA
Cont. output power at 25°C (W)2400 W
Cont. output power at 40°C (W)2200 W
Cont. output power at 65°C (W)1700 W
Peak power5500 W
Maximum efficiency95%
Zero load power11 W
Zero load power in Search mode2 W
Zero load power in AES mode7 W

Charger

Charge voltage 'absorption'57.6 V
Charge voltage 'float'55.2 V
Storage mode52.8 V
Maximum charge current35 A
Battery temperature sensorYes

Connectivity & control

VE.Bus communication portFor parallel, split-phase and three-phase operation, remote monitoring and system integration
General purpose comms portYes, 2x
Programmable relayYes
Auxiliary output32 A
Remote on/offYes
External AC current sensor (optional)100 A

Protection

ProtectionOutput short circuit, overload, battery voltage too high, battery voltage too low, temperature too high, 120 VAC on inverter output, input voltage ripple too high

Environmental

Operating temperature range-40 to +60°C (fan-assisted cooling)
Humidity (non-condensing)Max 95%

Physical

Material & colourSteel, blue RAL 5012
Protection categoryIP22
Battery connectionM8 bolts
230 VAC connection13 mm² (6 AWG)
Weight19 kg
Dimensions (h x w x d)572 x 277 x 147 mm

Conformance

SafetyEN-IEC 60335-1, EN-IEC 60335-2-29, CSA 22.2 107.1-16, UL1741
Emission / ImmunityEN 55014-1, EN 55014-2, EN-IEC 61000-3-2, EN-IEC 61000-3-3, IEC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3

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Is this a 120 V or 230 V model?
This is the 120 V version, producing a 120 VAC, 60 Hz output. It suits North American style systems rather than 230 V, 50 Hz markets. If you need 230 V, choose the equivalent MultiPlus-II 230V model instead.
Why choose a 48 V model over 12 V or 24 V?
A 48 V system runs at one quarter of the DC current of a 12 V system for the same power, so cable runs are thinner, voltage drop is lower and connections are simpler. It is the usual choice for larger storage and off-grid installations.
What does PowerAssist do?
PowerAssist compensates for a limited shore or generator supply by adding power from the battery when loads peak. This prevents the source from being overloaded and tripping, while the spare capacity is still used to recharge the battery.
How fast does it switch over during a power failure?
The integrated transfer switch hands the loads to the inverter in less than 20 milliseconds, so computers and other sensitive electronics keep running without interruption.
Can I run several units together for more power?
Yes. Up to six MultiPlus-II units can be paralleled for higher output, two of the same model can be wired for 240 V split phase, and three can be configured for three phase operation.
Is it suitable for lithium batteries?
Yes. The MultiPlus-II works with lithium, AGM, gel and flooded batteries, and its general purpose communication ports allow integration with managed lithium-ion battery systems.