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

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48 V 4.5 kVA inverter with 55 A battery charger and 32 A transfer switch for off-grid power systems

$ 1,179.00 - Inc GST 1179.0 AUD $ 1,179.00 Tax Included

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Category: INVERTER CHARGERS, Inverter Chargers, Victron, Multiplus

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

Features

230 V inverter output
55 A battery charger
32 A transfer switch
Suitable for 48 V systems
PowerControl
PowerAssist
UPS functionality
Dual AC outputs
Parallel capability
Three-phase capability
Adaptive 4-stage charging
ESS compatibility
Programmable relay
VE.Bus communication
AES mode
Search mode
Temperature compensation
Anti-islanding
Multi-battery chemistry support

Where to use it

The Victron MultiPlus-II 48/4500/55-32 is a versatile, professional-grade inverter-charger designed for mid-sized 48 V power systems, delivering a robust 4.5kVA output and a 55 A integrated battery charger. Perfectly suited for off-grid homes, residential energy storage (ESS), and high-end expedition vehicles, it combines the features of the MultiPlus and MultiGrid to provide seamless UPS functionality and advanced grid integration.

With signature Victron technologies like PowerControl and PowerAssist, this unit prevents AC source overloads while supplementing power from the battery bank when demand peaks. Its compact design and VE.Bus communication make it a reliable, scalable hub for any modern energy system requiring efficient power management and uninterrupted backup.

Dimensions

Width	275 mm
Height	590 mm
Depth	149 mm
Weight	22 kg

*Note: Installation requires a vertical mount on a non-flammable surface with sufficient clearance around the unit for fan-assisted cooling.

Safety features

Overload protection
Short circuit protection
Overheating protection
Low battery voltage protection
High DC ripple protection
Pure sine wave output
Integrated ground relay
UPS transfer functionality
Internal anti-islanding (for ESS)

Warranty

5-year warranty
Access to Springers Solar's warranty support team
Authorised Victron dealer

Applications

4WD

RV's

Caravans

Off-Grid Systems

Tiny Houses

Cabins

About Victron

Victron Energy has a strong, unrivalled reputation for technical innovation, reliability, and build quality. Their products are widely considered to be a professional choice for independent electric power. Efficiently combining two or more distinct power sources is what they do best. Their products include sinewave inverters, sinewave inverters/chargers, battery chargers, DC/DC converters, transfer switches, battery monitors and more.

Datasheet_MultiPlus-II-inverter-charger-4k-4k5-6k5-EN.pdf

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Manual_32424-MultiPlus-II___Quattro-II-pdf-en.pdf

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Product Specifications

MultiPlus-II 230V 48/4k5/100-50
PowerControl & PowerAssist	Yes
Transfer switch	32 A
Maximum AC input current	32 A
Inverter
DC Input voltage range	38 - 60 V
Output voltage	230 V ± 2%
Output frequency	50 Hz ± 0.1%
Cont. output power at 25°C	4 kW
Cont. output power at 40°C	3.7 kW
Cont. output power at 65°C	3 kW
Time-limited power 1 (cold start)	4.5 kW / 2h
Time-limited power 2 (cold start)	6 kW / 25 min
Max apparent feed-in power	4 kW
Peak power	7 kW / 1 min
Maximum efficiency	95 %
Zero load power	20 W
Zero load power in AES mode	13 W
Zero load power in Search mode	8 W
Charger
AC Input voltage range	187 - 265 V
AC Input frequency range	45 - 65 Hz
Charge voltage 'absorption'	57.6 V
Charge voltage 'float'	55.2 V
Storage mode	52.8 V
Max. battery charge current at 25°C	55 A
Max. battery charge current at 40°C	50 A
Battery temperature sensor	Yes
Compatible battery chemistries	Lithium, Lead-acid, Zinc-Bromine and more
General
Auxiliary output	Yes (32 A)
Interfaces	BMS-Can, USB, Ethernet, VE.Direct, Wi-Fi
External AC current sensor (optional)	50 A or 100 A
Programmable relay	Yes
Protection	a - g
VE.Bus communication port	For parallel and three-phase operation, remote monitoring and system integration
General-purpose communication port	Yes, 2x
Remote on-off	Yes
Operating temperature range	-40°C to +65°C (fan-assisted cooling)
Maximum humidity (non-condensing)	95 %
Maximum altitude	2000 m
Enclosure
Material & Colour	Steel, blue RAL 5012
Protection category	IP21
Battery-connection	M8 bolts
230 V AC connection	Screw terminals 13 mm² (6 AWG)
Weight	22 kg
Dimensions (h x w x d)	590 x 275 x 149 mm
Standards
Safety	EN-IEC 60335-1, EN-IEC 60335-2-29, EN-IEC 62109-1, EN-IEC 62109-2
Emission, Immunity	EN 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
Uninterruptible power supply	IEC 62040
Anti-islanding	IEC 62116