Victron MultiPlus 12/500 - 20-16 - 120V - VE. Bus UL Approved

The MultiPlus 12/500 - 20-16 - 120V - VE.Bus UL Approved is an essential power solution for marine and boating applications. Combining a true sine wave inverter, a sophisticated battery charger, and a high-speed AC transfer switch, the MultiPlus ensures reliable and efficient power management on board your vessel. Its compact design houses advanced features tailored to meet the demanding needs of marine environments.

Key Features

• True Sine Wave Inverter: Provides clean and stable power for sensitive marine electronics.
• Adaptive Battery Charger: Utilizes advanced charging technology to optimize battery health and longevity.
• High-Speed AC Transfer Switch: Ensures seamless power switching between different sources without interruption.
• Compact Enclosure: Designed to fit efficiently in limited marine spaces.

Parallel Operation and Three-Phase Capability

Expand your power system with up to six MultiPlus units operating in parallel, delivering higher power output to meet the demands of larger vessels. Additionally, configure three units for three-phase output, providing balanced power distribution across multiple systems on board.

PowerControl: Optimize Generator and Shore Power Usage

Set maximum generator or shore power limits with the Multi Control Panel. The MultiPlus intelligently manages additional AC loads, utilizing excess power to charge batteries. This prevents overloading your generator or shore supply, ensuring efficient and safe power usage.

PowerAssist: Enhance Shore or Generator Power Capacity

PowerAssist takes PowerControl a step further by supplementing limited shore or generator power. During peak demand periods, the MultiPlus draws power from the battery to compensate for insufficient shore or generator output. Once the load decreases, the system automatically recharges the battery, ensuring a stable power supply without overburdening your primary sources.

Advanced Battery Charging Technology

The MultiPlus features a four-stage adaptive charger that fine-tunes the charging process based on battery conditions. This intelligent charging sequence includes:

1. Bulk Charging
2. Absorption Charging
3. Float Charging
4. Long-Term Float Charging

Additionally, the MultiPlus supports dual-bank battery charging, allowing simultaneous charging of a main house battery and a starter battery with an independent trickle charge output.

High Start-Up Power

Designed to handle high-inrush loads common on boats, such as power converters for LED lamps, halogen lighting, and electric tools, ensuring reliable operation of all your marine equipment.

Energy Efficiency Features

Search Mode: Reduces inverter power consumption by approximately 70% during no-load or low-load conditions. The MultiPlus intermittently activates the inverter every two seconds, conserving energy while maintaining readiness to supply power when needed.

Programmable Relay

Customize the relay function to suit your marine setup. By default, the relay acts as an alarm relay, de-energizing during alarms such as overheating, input ripple issues, or low battery voltage. This feature can be adjusted to perform functions like general alarms or generator start/stop signals.

Remote Control and Monitoring

Integrate the MultiPlus with Victron’s Cerbo GX or other GX products to connect to the internet, enabling remote monitoring and control via the Victron Remote Management (VRM) portal. Access operational data, adjust settings, and manage your power system from anywhere with an internet connection.

On-Site System Configuration

After installation, the MultiPlus is ready for immediate use. Customize settings through DIP switches, including remote switch control, battery charge voltage, inverter frequency, and search mode. For advanced configurations, utilize VE-Config or the VE.Bus Smart dongle.

Specifications

Inverter Specifications

Parameter	Value
Input Voltage Range (V DC)	9.5 – 17 V, 19 – 33 V, 38 – 66 V
Output Voltage	230 VAC, ± 2%
Frequency	50 Hz ± 0.1%
Continuous Output Power at 25°C (VA)	500
Continuous Output Power at 25°C (W)	430
Continuous Output Power at 40°C (W)	400
Continuous Output Power at 65°C (W)	300
Peak Power (W)	900
Maximum Efficiency (%)	90 / 91 / 92%
Zero Load Power (W)	6 / 6 / 7W
Zero Load Power in Search Mode (W)	2 / 2 / 3W

Charger Specifications

Parameter	Value
AC Input Voltage Range	187-265 VAC
Input Frequency	45 – 65 Hz
Charge Voltage Absorption (V DC)	14.4 / 28.8 / 57.6
Charge Voltage Float (V DC)	13.8 / 27.6
Storage Mode (V DC)	13.8 / 27.6 / 55.2
Charge Current House Battery (A)	20 / 10 / 6 A
Charge Current Starter Battery (A)	1A (12 V and 24 V models only)
Battery Temperature Sensor	Yes

General Specifications

Feature	Details
Programmable Relay	Yes (1x)
Protection	Includes output short circuit, overload, battery voltage protection, temperature control, and more
VE.Bus Communication Port	For parallel and three-phase operation, remote monitoring, and system integration (RJ45-splitter ASS030065510 needed for 500 / 800 / 1200 VA models)
Remote On-Off	On/off/charger only
DIP Switches	Yes
Internal DC Fuse	125 / 60 / 30 A
Operating Temperature Range	-40 - +65°C / -40 to 150°F (fan-assisted cooling)
Humidity	Non-condensing, max 95%

Enclosure Specifications

Feature	Details
Material & Color	Aluminum (blue RAL 5012)
Protection Category	IP 21
Battery Connection	16 / 10 / 10 mm²
230 V AC Connection	G-ST18i connector
Weight	4.4 kg
Dimensions (H x W x D)	311 x 182 x 100 mm / 12.2 x 7.2 x 3.9 in.

Compliance and Standards

• Safety: EN-IEC 60335-1, EN-IEC 60335-2-29, EN 62109-1
• 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
• Automotive Directive: ECE R10-5
• Adjustable to 60Hz and 240V
• Protection against output short circuit, overload, high/low battery voltage, high temperature, 230VAC on inverter output, and high input voltage ripple
• Compatible with non-linear loads, crest factor 3:1
• Operational up to 25°C ambient temperature

Support and Documentation

Please contact your dealer for any returns, repairs, or support issues related to this product.

Quick Guide (PDF)
Owner's Manual (PDF)
Brochure (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.