MultiPlus 12/3000/120-50

The Victron Energy MultiPlus 12/3000/120-50 is a versatile energy management system that combines three main functions into a single device:

A powerful pure sine wave inverter.A sophisticated adaptive battery charger.A high-speed AC transfer switch.It is designed to provide a centralized solution for power conversion and management in various applications, including marine systems, recreational vehicles, and backup power systems.

The MultiPlus 12/3000/120-50 provides a continuous output power of 3000 VA (2400 W) at an ambient temperature of 25°C. It can also handle a peak power of 6000 W, which is useful for starting high inrush current loads.

The integrated battery charger delivers a charging current of 120 A for the main service battery and 4 A for the starting battery. It uses a four-stage adaptive charging technology: bulk, absorption, float (maintenance), and storage. This technology is compatible with lead-acid batteries (sealed, AGM, gel, flooded) and lithium batteries.

Yes, the MultiPlus 12/3000/120-50 is compatible with a wide range of battery types, including lead-acid batteries (sealed, AGM, gel, flooded) and lithium batteries. Its adaptive charger adjusts the charging process based on the battery type and condition.

The PowerControl function allows you to set a maximum current from a limited AC source, such as a generator or shore power supply. The MultiPlus takes other AC loads into account and uses the excess current for battery charging, thus preventing overload of the external source.

The PowerAssist function extends the PowerControl principle by allowing the MultiPlus to supplement the capacity of the alternative source (generator or shore power). When peak power is required for a short period, the MultiPlus immediately provides additional power from the battery. When the load decreases, excess energy is used to recharge the battery, preventing overload and enabling the use of smaller generators.

Yes, the MultiPlus 12/3000/120-50 is designed to be scalable. Up to six units can be connected in parallel to increase total output power. Additionally, three units can be configured for three-phase output, providing flexibility for more complex systems.

The MultiPlus 12/3000/120-50 can be configured, monitored and controlled in several ways:

Via DIP switches for basic settings.Using the VictronConnect app or the VE-Configure software (requires an MK3-USB interface for advanced configuration).Remotely by connecting a GX product (such as Cerbo GX or Ekrano GX) to the Internet, enabling access to operational data via the free VRM (Victron Remote Management) portal.

The MultiPlus 12/3000/120-50 requires an input DC voltage ranging from 9.5 V DC to 17 V DC. It is designed to operate with a 12 V battery system.

The MultiPlus 12/3000/120-50 inverter provides an AC output voltage of 120 VAC ± 2% at a frequency of 60 Hz ± 0.1%. It delivers a pure sine wave, suitable for sensitive electronic equipment.

Yes, the MultiPlus 12/3000/120-50 includes a UPS function. In the event of a mains power failure or generator stoppage, it automatically switches to inverter mode and resumes power supply to connected devices. This transfer is so fast (less than 20 milliseconds) that it does not disrupt the operation of computers and other sensitive electronic devices.

The MultiPlus 12/3000/120-50’s built-in AC transfer switch ensures a very fast transfer time, under 20 milliseconds. This guarantees nearly uninterrupted AC power for sensitive equipment.

When search mode is enabled, the power consumption of the inverter with no load or very light load is reduced by about 70%. In this mode, the MultiPlus shuts down when there is no load and restarts every two seconds for a brief period. If the output current exceeds a defined threshold, the inverter continues running; otherwise, it shuts down again.

Yes, the MultiPlus 12/3000/120-50, being a model with a 50 A transfer capacity, is equipped with three programmable relays. By default, these relays can be configured as alarm relays, but they can also be programmed for various other applications, such as starting/stopping a generator.

The MultiPlus 12/3000/120-50 integrates multiple protections to ensure system safety and durability:

Short-circuit protection on output.Overload protection.High or low battery voltage protection.Over-temperature protection.Protection against 120 VAC presence on the inverter output.Protection against excessive input voltage ripple.

Yes, the MultiPlus 12/3000/120-50 is perfectly suited for solar power applications. It can be used in standalone systems as well as grid-connected systems. It can manage excess solar energy to recharge batteries and, in case of a grid failure, it can replace the grid to power essential equipment.

The MultiPlus 12/3000/120-50 is a Class I safety device. Its AC input and/or output terminals must be connected to an uninterrupted earth ground for safety. An additional grounding point is also located outside the product. It is essential to ensure that the grounding protection is intact before any use.

The MultiPlus 12/3000/120-50 comes with a battery temperature sensor. This sensor automatically reduces the charging voltage when the battery temperature rises. This feature is especially important for maintenance-free batteries, as it helps prevent overcharging and drying out, thereby extending their lifespan.

Yes, the MultiPlus 12/3000/120-50 has a battery voltage sensing function (voltage sense). This feature compensates for voltage drop caused by cable resistance by measuring the voltage directly at the DC bus or at the battery terminals, ensuring the battery receives the correct charging voltage.

The MultiPlus 12/3000/120-50 is designed to operate within a temperature range of -40 °C to +65 °C, with fan-assisted cooling. Maximum humidity (non-condensing) must not exceed 95%. When installing, ensure sufficient free space around the unit for proper ventilation and mount it in a heat-resistant environment.