Victron MultiPlus-II 24/3000 70-50 120V Inverter/Charger (UL 458)

The Ultimate All-in-One: Victron MultiPlus-II 24/3000 Inverter/Charger

The Victron MultiPlus-II 24/3000 70-50 120V Inverter/Charger (MPN: PMP242305102) combines the proven functions of the classic MultiPlus and the MultiGrid into a single, highly advanced mobile power solution. Operating on a 24V DC system, this robust unit delivers 3000VA of 120V AC power while featuring a built-in 70-amp battery charger and a 50-amp transfer switch. It is certified to UL 458 standards, making it exceptionally safe and reliable for marine, RV, and off-grid applications.   

PowerAssist and Uninterrupted AC Power (UPS)

The MultiPlus-II utilizes Victron's unique hybrid PowerAssist technology to prevent the overload of a limited AC source, such as a generator or shore power connection. It automatically reduces battery charging to prevent overloads, and can boost the output of your AC supply with supplemental power drawn directly from the battery. In the event of a grid failure or disconnected shore power, the MultiPlus-II features a UPS function that automatically takes over the supply to connected loads in less than 20 milliseconds. This rapid transfer ensures that computers and sensitive electronic equipment continue to operate without disruption.   

ESS Integration and Remote Monitoring

As a critical component in a Victron Energy Storage System (ESS), the MultiPlus-II provides the ultimate flexibility to combine with MPPT Solar Chargers or Grid-tie PV Inverters. Additionally, it features built-in anti-islanding and an external current transformer option (max 32A) to optimize self-consumption. When coupled with a GX device (such as the Cerbo GX), you can easily monitor and control your system locally or remotely from anywhere in the world using the free VRM app and VRM portal website.

Technical Specifications

• Brand: Victron   
• Model: MultiPlus-II Sine Wave 24/3000 - 70-50 - 120V   
• Part Number (MPN): PMP242305102   
• Input Voltage: 24V DC   
• Output Voltage: 120V AC   
• Inverter Power: 3000VA   
• Charger Output: 70 Amps   
• Transfer Switch: 50 Amps   
• Certifications: UL 458   
• Key Features: PowerAssist, UPS function (<20ms), Built-in anti-islanding, ESS compatible   

FAQs

What does 70-50 mean on the Victron MultiPlus-II 24/3000?

It indicates the unit is equipped with a 70-Amp adaptive battery charger and a 50-Amp transfer switch to handle incoming shore or generator power.   

Can the Victron MultiPlus-II PMP242305102 automatically switch to battery power?

Yes, it features a rapid UPS function that automatically switches to inverter power in less than 20 milliseconds if shore power is disconnected, keeping electronics running seamlessly.   

How do I monitor the Victron MultiPlus-II remotely?

To monitor the system via the internet using the free VRM app or portal website, the MultiPlus-II requires a connection to a GX device, such as the Cerbo GX.   

Why does my Victron MultiPlus-II trip the shore power GFCI?

A common installation issue reported by users involves the unit's internal grounding relay. If the RV or vessel's neutral-ground bonding is not correctly configured for mobile applications, it will trip sensitive GFCI shore outlets when the charger engages.

Do I need wire ferrules for the Victron MultiPlus-II AC terminals?

Yes. To prevent arcing and overheating at high loads, professional installers highly recommend using properly crimped wire ferrules on the AC push-in terminals.