MultiPlus C 12/1200/50-16

The Victron Energy MultiPlus C 12/1200/50-16 is an integrated, compact power solution combining three essential functions:

A pure sine wave inverter that converts direct current (DC) from batteries into alternating current (AC).

An adaptive battery charger to recharge batteries from an AC source (mains or generator).

An ultra-fast AC transfer switch ensuring uninterrupted power in case of a power outage.

It is designed for intelligent energy management in marine, mobile, or off-grid applications.

The MultiPlus C 12/1200/50-16 inverter delivers a continuous output power of 1200 VA, which corresponds to 1000 W at 25°C. It can also provide a peak power of up to 2400 W to start devices requiring high inrush current.

Yes, the MultiPlus C 12/1200/50-16 includes a UPS (Uninterruptible Power Supply) function. In the event of an AC source failure (mains or generator), it automatically switches to inverter mode in less than 20 milliseconds. This transition is so fast that it does not disrupt the operation of computers and other sensitive electronic devices.

The PowerAssist function allows the MultiPlus to supplement the capacity of a limited AC source, such as a generator or shore power connection. If electrical consumption exceeds the AC source’s capacity, the MultiPlus instantly draws the required power from the battery to prevent overload. When the load decreases, any excess power is used to recharge the battery. This enables the use of high-power appliances even with a low-ampere AC source and potentially allows for the installation of a smaller generator.

The MultiPlus C 12/1200/50-16 uses a 4-stage adaptive charging algorithm, microprocessor-controlled:

Bulk (bulk charge): Charges the battery at maximum current.Absorption: Maintains a constant voltage for a full charge, with a duration adapted to the previous discharge.Float (float charge): Keeps the battery at a float voltage to compensate for self-discharge.Storage: Reduces float voltage after 24 hours without discharge to minimize gassing and aging, with weekly equalization.A battery temperature sensor is included to optimize charging voltage.

Yes, the MultiPlus C 12/1200/50-16 is highly suitable for solar energy applications. It can be used in both standalone systems and grid-connected systems. It can use excess solar energy to recharge batteries and, in case of grid failure, it can replace the grid to power essential equipment.

Yes, the inverter of the MultiPlus C 12/1200/50-16 can deliver a peak power of 2400 W. This capacity is particularly useful for starting devices with high inrush current at power-up, such as certain motors, pumps, or power tools, without overloading the system.

The PowerControl function limits the maximum AC current the MultiPlus can draw from an external source, such as a shore power outlet or a generator. This is useful to prevent overloading these limited sources. The MultiPlus accounts for other power consumers and only uses the 'excess' current for battery charging, thereby optimizing the use of available power.

Yes, the MultiPlus C 12/1200/50-16 can be compatible with lithium-ion batteries. It is equipped with programmable analog/digital input/output ports that can be used for communication with the battery management system (BMS) of a lithium-ion battery. This enables optimized and secure charging and discharging management for this type of battery.

The MultiPlus C 12/1200/50-16 prevents overloads on limited AC sources (such as a generator or shore power connection) thanks to its PowerAssist function. If power demand exceeds the AC source's capacity, the MultiPlus automatically draws additional energy from the battery. This prevents tripping and allows the use of high-power appliances even with restricted AC power.

When installing the MultiPlus, it is crucial to follow these safety instructions:

Always disconnect AC power and the battery before any work.The product is a Class I device and must be continuously grounded.Ensure adequate ventilation around the product and do not block ventilation openings.Install the product in a heat-resistant environment, away from chemicals, plastics, or flammable textiles.Verify that the available voltage source complies with the product’s configuration settings.

Yes, the MultiPlus C 12/1200/50-16 is a Class I safety appliance. Its AC input and/or output terminals must be provided with an uninterrupted ground connection for safety reasons. An additional grounding point is also located on the outside of the product to facilitate this connection.

To ensure optimal ventilation, it is essential to leave sufficient free space around the MultiPlus. Ventilation openings must never be blocked. Install the product in a heat-resistant environment and ensure there are no chemicals, plastic parts, curtains, or other flammable textiles in the immediate vicinity of the equipment.

The MultiPlus C 12/1200/50-16 is delivered ready for use, but its settings can be modified in several ways:

The most important settings can be adjusted easily using the DIP switches.All settings (except for the multifunctional relay) can be modified via a VE.Net panel.All settings can be configured using a computer and free software downloadable from the Victron Energy website.

Yes, it is essential to ensure that the MultiPlus connection cables are equipped with appropriate fuses and circuit breakers. Never replace a protection device with a component of a different type. The product manual provides information on the correct parts to use to ensure the safety and proper operation of the installation.

Yes, it is possible to configure three MultiPlus C 12/1200/50-16 units to create a three-phase output. This feature allows the system to adapt to installations requiring a three-phase power supply.

The adaptive battery management system of the MultiPlus C 12/1200/50-16, microprocessor-controlled, can be configured to be compatible with various battery types. The adaptive algorithm automatically adjusts to battery usage, optimizing charging for lead-acid batteries (gel, AGM, flooded) and potentially other types such as lithium-ion via programmable ports and external BMS.