Victron Energy PMP121500100 MultiPlus 12/500/20-16 120V VE.Bus Inverter Charger

The Victron Energy MultiPlus 12/500/20-16 120V VE.Bus (PMP121500100) is a multifunctional power solution that combines a true sine wave inverter, an adaptive battery charger, and a high-speed AC transfer switch into a single compact enclosure. UL Approved and engineered for demanding applications including marine, RV, off-grid, and backup power installations.

The MultiPlus delivers seamless power continuity — switching to inverter mode so quickly during an AC outage that connected electronic devices continue to operate without interruption. Its sophisticated adaptive charging technology maximizes battery life and performance through a dynamic four-stage charging process, supporting virtually all battery chemistries including Lithium, AGM, Gel, and flooded wet cell.

Key Features:

• True Sine Wave Inverter: 500VA continuous output on a clean 120V AC sine wave suitable for sensitive electronics
• Adaptive Battery Charger: 20A charge current with four-stage charging and dual-bank output — charges a secondary (starter) battery via an independent trickle charge output
• High-Speed AC Transfer Switch: 16A input current rating with near-instant switchover to protect connected loads
• PowerControl: Monitors total AC load and automatically limits battery charging to prevent overloading a generator or shore power supply
• PowerAssist: Supplements shore or generator power using battery energy during peak demand, then recharges when load decreases
• Parallel & Three-Phase Scalability: Up to six units can be connected in parallel for greater power output; three units can be configured for three-phase operation
• Search Mode: Reduces no-load power consumption by approximately 70% by cycling the inverter on every two seconds to detect connected loads
• Programmable Relay: Factory-configured as an alarm relay that de-energizes on pre-alarm or alarm conditions (high temperature, high ripple, low battery voltage)
• VE.Bus Communication: Compatible with Victron GX devices (Cerbo GX, etc.) for full system integration, remote monitoring, and configuration via the free Victron Remote Management (VRM) portal
• On-Site Configuration: Basic settings adjustable via DIP switches (remote switch, charge voltage, inverter frequency, search mode); advanced configuration via VE.Config software or the VE.Bus Smart Dongle (Bluetooth)
• UL Approved: Certified for use in North American 120V AC applications

The MultiPlus 12/500/20-16 is the entry-level model in Victron's MultiPlus family, making it an ideal compact inverter/charger for small marine vessels, campervans, off-grid cabins, and emergency backup systems where reliable, intelligent power management is essential.