Victron Energy 3000 Watt 48 VDC - 120 VAC (Multi-Plus-II) UL 1741, Pure Sine Wave Inverter/Charger

Name: Victron Energy 3000 Watt 48 VDC - 120 VAC (Multi-Plus-II) UL 1741, Pure Sine Wave Inverter/Charger
Brand: Victron Energy
SKU: PMP482305102
Price: 1149.0 USD
Availability: InStock

BY: Victron Energy

SKU: PMP482305102

| Availability: In stock

$1,306.00

$1,149.00

You Save: $157.00

Product Highlights

Built for home backup, off-grid power, and RV travel
3,000 W output to run high-demand appliances and equipment
1,700 W surge capacity helps start motors and compressor loads
Pure sine wave output delivers clean power for sensitive electronics

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Victron Energy 3000 Watt 48 VDC - 120 VAC (MultiPlus-II) UL 1741, Pure Sine Wave Inverter/Charger Overview

The Victron Energy MultiPlus-II 48/3000/35-50 is a high-performance pure sine wave inverter and intelligent battery charger designed for advanced off-grid, backup power, marine, RV, and energy storage applications. Combining a powerful 3000VA inverter, adaptive battery charger, and ultra-fast transfer switch into one compact unit, the MultiPlus-II delivers seamless and reliable power management for demanding energy systems.

Built with Victron’s renowned PowerAssist technology, this inverter/charger prevents overload conditions by supplementing limited AC sources such as generators or shore power with battery power when needed. The MultiPlus-II also supports parallel and three-phase operation for scalable system expansion and integrates easily with Victron’s advanced monitoring and remote management ecosystem.

With UL 1741 certification, split-phase compatibility, programmable relays, and robust safety protections, the MultiPlus-II is ideal for residential backup systems, solar energy storage, RV installations, mobile workstations, and marine applications.

Victron Energy MultiPlus-II Features

Pure Sine Wave Output - Provides clean, stable AC power suitable for sensitive electronics, appliances, computers, medical equipment, and communication systems.
PowerAssist Technology - Automatically supplements weak shore or generator power with battery power to prevent AC source overloads during peak demand periods.
Integrated Transfer Switch - Features a fast 50A transfer switch for seamless switching between shore/grid power and inverter operation.
Adaptive Battery Charging - Advanced multi-stage charging optimizes battery health, improves charging efficiency, and extends battery lifespan.
Parallel & Three-Phase Capability - Supports parallel operation and three-phase configurations for larger power systems and scalable installations.
Remote Monitoring & Control - Compatible with Victron GX devices, VRM portal, and VE.Bus communication for advanced remote monitoring and system integration.
Low Idle Power Consumption - Efficient low-power search mode minimizes battery drain during standby operation.
UL 1741 Certified - Certified for North American electrical compliance and compatible with modern ESS and backup applications.
Built-In Programmable Relay - Offers customizable automation and system control functions for advanced installations.

Victron Energy MultiPlus-II Applications

Off-grid solar systems – ideal for cabins, tiny homes, and remote properties.
Whole-home backup systems – delivers reliable emergency power during outages.
RV and van conversions – powers appliances, lighting, and electronics while mobile.
Marine power systems – supports onboard AC power and battery charging.
Energy storage systems (ESS) – integrates with solar and battery storage solutions.
Mobile workstations – powers tools, communication equipment, and remote offices.
Backup communication systems – maintains uptime for networking and security devices.
Generator support systems – enhances generator performance with PowerAssist functionality.

What's Included

Everything you need is included with your product.

Victron Energy 3000 Watt 48 VDC - 120 VAC (Multi-Plus-II) UL 1741, Pure Sine Wave Inverter/Charger

User Manual

Warranty

5-year Victron warranty

Victron Energy 3000 Watt 48 VDC - 120 VAC (Multi-Plus-II) UL 1741, Pure Sine Wave Inverter/Charger Video

Victron Energy 3000 Watt 48 VDC - 120 VAC (Multi-Plus-II) UL 1741, Pure Sine Wave Inverter/Charger Specification

Specification	Details
PowerControl & PowerAssist	Yes
Transfer switch	50A
Maximum AC input current	50A

Inverter

Specification	Details
DC input voltage range	38 – 66 V
Output	Output voltage: 120 VAC ± 2%, Frequency:60 Hz ± 0,1 %ᵛ
Cont. output power at 25 °C	3000 VA
Cont. output power at 25 °C	2400 W
Cont. output power at 40 °C	2200 W
Cont. output power at 65 °C	1700 W
Peak power	5500 W
Maximum efficiency	95 %
Zero load power	11 W
Zero load power in AES mode	7 W
Zero load power in Search mode	2 W

Charger

Specification	Details
AC Input	Input voltage range: 90-140 VAC \| Input frequency:55 – 65 Hz
Charge voltage ‘absorption’	57,6 V
Charge voltage ‘float’	55,2 V
Storage mode	52,8 V
Max. battery charge current	35 A
Battery temperature sensor	Yes

General

Specification	Details
Auxiliary output	32 A
External AC current sensor (optional)	100 A
Programmable relay	Yes
Protection	a – g
VE.Bus communication port	For parallel, split-phase and three-phase operation, remote monitoring and system integration
General purpose com. port	Yes, 2x
Remote on-off	Yes
Operating temperature range	-40 to +60°C (-40 – 140 °F) (fan-assisted cooling)
Humidity (non-condensing)	max 95 %

Enclosure

Specification	Details
Material & Colour	Steel, blue RAL 5012
Protection category	IP22
Battery-connection	M8 bolts
120 VAC-connection	13 mm² (6 AWG)
Dimensions (hxwxd) mm / inch	572 x 277 x 147 \| 22.5 x 10,9 x 5,8”

Standards

Specification	Details
Listings	UL 1741
Safety	EN-IEC 60335-1, EN-IEC 60335-2-29, CSA 22.2 107.1-16, EN 55014-1, EN 55014-2
New Row	EN-IEC 61000-3-2, EN-IEC 61000-3-3, IEC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3

Frequently-Asked Questions

What does the MultiPlus-II do?

The MultiPlus-II combines a pure sine wave inverter, battery charger, and transfer switch into one compact system for backup power and energy storage applications.

What is PowerAssist technology?

PowerAssist allows the inverter to supplement limited AC input sources such as generators or shore power with battery energy during periods of high demand.

Can the MultiPlus-II work with solar systems?

Yes. The MultiPlus-II is commonly integrated into solar energy storage systems alongside Victron MPPT solar charge controllers and battery banks.

Is the inverter suitable for sensitive electronics?

Yes. The pure sine wave output provides stable and clean power safe for computers, televisions, medical devices, and communication equipment.

Can multiple units be connected together?

Yes. The MultiPlus-II supports parallel and three-phase configurations for larger power systems.

Does the inverter automatically switch during a power outage?

Yes. The built-in transfer switch automatically changes over to inverter power when utility or shore power is lost.

Is remote monitoring available?

Yes. When paired with Victron GX devices and the VRM portal, users can remotely monitor and manage their systems from anywhere.

What type of batteries are compatible?

The MultiPlus-II supports many battery chemistries including lithium iron phosphate (LiFePO4), AGM, gel, and flooded lead-acid batteries.

Manual

Victron Energy 3000 Watt 48 VDC - 120 VAC (Multi-Plus-II) UL 1741, Pure Sine Wave Inverter/Charger Manual

Shipping & Easy Returns

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Most orders leave the warehouse in 1 to 2 business days and arrive within 3 to 10 business days. We send tracking the moment it ships.

Anything that ships on a pallet goes freight with liftgate and pallet jack included, so the driver gets it off the truck and onto the ground at your address. The carrier will call you directly to schedule a delivery window.

Returns are 30 days from delivery. For freight deliveries, inspect the shipment before you sign for it. If something is damaged in transit, note it on the delivery receipt and we handle the freight claim, not you. Read more about our Returns Policy here.

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I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!

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I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!

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