Victron Energy PMP242305010 MultiPlus-II 24/3000/70-32 230V

Victron Energy MultiPlus-II 24/3000 3000VA Pure Sine Inverter, 70A Charger, PowerAssist. Scalable to Three-Phase.

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Product Overview

The Victron Energy MultiPlus-II 24/3000/70-32 230V (PMP242305010) is a professional-grade 24V pure sine wave inverter/charger delivering 3,000VA of continuous AC output with a 70A battery charger and 32A automatic transfer switch in a single unit. Combining the features of the MultiPlus inverter and charger with an external current sensor option that extends PowerControl to 50A and PowerAssist to 100A, the MultiPlus-II 24/3000 is suited to marine, vehicle, off-grid residential, and generator-backed installations requiring reliable, intelligently managed power in a compact 24V package.

The 4-stage adaptive charging algorithm Bulk, Absorption, Float, and Storage adjusts to battery condition and usage pattern automatically, protecting battery health and reducing maintenance. A second independent trickle charge output maintains a starter or auxiliary battery simultaneously. In the event of generator or shore power failure, the UPS function activates the inverter in under 20 milliseconds, maintaining supply to connected loads without disruption. Up to six units can be operated in parallel for higher output, and three-unit three-phase configurations deliver up to 75kW / 90kVA with over 2,000A of combined charging capacity.

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Key Specifications

• Part Number: PMP242305010
• Product: MultiPlus-II 24/3000/70-32 230V
• Battery Voltage: 24V
• Inverter Output: 3,000VA — 230V pure sine wave
• Battery Charger: 70A
• Transfer Switch: 32A
• Charge Algorithm: 4-stage adaptive — Bulk, Absorption, Float, Storage
• Second Battery Output: Yes — independent trickle charge
• PowerControl: Yes — external current sensor option to 50A
• PowerAssist: Yes — external current sensor option to 100A
• Transfer Time (AC Source Failure): Less than 20 milliseconds (confirm from datasheet)
• AC Outputs: 2 (main no-break + secondary live-on-AC-input only)
• Parallel Operation: Yes — up to 6 units
• Three-Phase Operation: Yes — 3 units, same model
• Maximum Parallel/Three-Phase Output: 75kW / 90kVA (confirm from datasheet)
• Maximum Combined Charging (parallel/three-phase): 2,000A+ (confirm from datasheet)
• Compatible with MPPT Solar Chargers: Yes
• Compatible with Grid-Tie PV Inverters: Yes
• On-Site Configuration: VEConfigure software (MK3-USB interface required — sold separately)
• Australian Grid Approval (AS4777.2 2020): Not confirmed — verify before grid-connected installation
• DC Input Voltage Range: Not specified — confirm with supplier
• Efficiency: Not specified — confirm with supplier
• Standby Power: Not specified — confirm with supplier
• IP Rating: Not specified — confirm with supplier
• Dimensions: Not specified — confirm with supplier
• Weight: Not specified — confirm with supplier

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Features & Benefits

• 3,000VA Pure Sine Wave at 24V — Delivers 3,000VA of continuous pure sine wave AC output from a 24V battery bank — appropriate for marine vessels, campervans, motorhomes, remote cabins, and mobile work vehicles where 24V battery systems are standard and a capable inverter/charger is required. Pure sine wave output is compatible with all AC equipment including sensitive electronics, variable-speed tools, and medical devices.
• 70A Battery Charger — Efficient 24V Bank Recovery — A 70A charger at 24V delivers approximately 1,680W of charging power from AC input — suited to 24V battery banks up to approximately 350–700Ah where a 10–20% charge rate is appropriate. The charger is fully adaptive, with automatic absorption time adjustment based on discharge depth and battery condition.
• 4-Stage Adaptive Charging — Including Storage Mode — Four stages manage the complete charge lifecycle. Bulk delivers maximum current for rapid recharge. Absorption holds at the correct voltage while current tapers, with adaptive duration that shortens for shallow discharges and extends for deep ones. Float safely maintains a full battery. Storage Mode delivers extended float charging for periods of inactivity — protecting battery health during extended layup without the risk of overcharge or excessive gassing.
• Independent Trickle Charge Output — Second Battery Maintenance — A separate trickle charge output maintains a second battery — starter battery, bow thruster bank, or auxiliary battery — simultaneously and independently from the main charge output. Keeps a second bank topped up without requiring a separate charger.
• PowerControl — Prevent Generator and Shore Power Overload — A maximum AC input current limit can be configured. The MultiPlus-II monitors all connected AC loads and adjusts battery charging current to prevent the total draw from exceeding the limit — preventing generator overloads, nuisance trips, and shore power supply violations. When other loads are running, charging current is automatically reduced; when loads reduce, charging current increases to use all available headroom.
• PowerAssist — Supplement Limited AC Sources with Battery Power — When peak loads momentarily exceed the available generator or shore power capacity, PowerAssist instantly draws from the battery to make up the shortfall. When the peak subsides, the spare AC capacity recharges the battery. This means a smaller, more fuel-efficient generator can support a larger connected load — and peak loads do not trigger generator trips or load-shedding events.
• External Current Sensor — Extended PowerControl/PowerAssist — An optional external current sensor extends PowerControl capability to 50A and PowerAssist to 100A, enabling more accurate load management across larger AC circuits and optimising self-consumption in grid-connected applications where approved.
• Less Than 20ms Transfer — UPS-Grade Backup — When generator or shore power fails, the MultiPlus-II activates the inverter in under 20 milliseconds. Computers, communication systems, navigation electronics, and other sensitive equipment on the main output continue operating through the transition without disruption or data loss.
• Two AC Outputs — Critical and Non-Critical Load Separation — The main output provides no-break power for critical loads. The second output is live only when AC input is present — loads that should not draw from the battery (electric water heaters, air conditioning, non-critical appliances) connect here and automatically shed during a power outage, preserving battery reserve for critical systems.
• Parallel Operation — Up to 6 Units — Up to six MultiPlus-II 24/3000 units can be operated in parallel on a single phase for higher combined output. Three units configure for three-phase output, and up to six sets of three units deliver up to 75kW / 90kVA with over 2,000A of combined charging capacity — scaling from a single compact installation to a full commercial or industrial power system.
• Compatible with Solar Chargers and Grid-Tie Inverters — Integrates with DC-coupled solar via MPPT charge controllers, and with AC-coupled solar via grid-tie PV inverters using frequency-shift power control. Provides a solar-ready platform for off-grid and hybrid system expansion beyond the inverter/charger alone.
• VEConfigure — Simple Parallel and Three-Phase Setup — Parallel and three-phase system configuration is handled through VEConfigure software without hardware changes or DIP switches — standard products with software configuration only. An MK3-USB interface is required for VEConfigure access (sold separately).

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Technical Specs

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Compatible With / Goes Well With

Battery Systems:

• 24V battery banks — lead acid (AGM, flooded, gel) and lithium
• Second battery (starter/auxiliary) via independent trickle charge output

Solar Integration:

• Victron SmartSolar and BlueSolar MPPT charge controllers (DC-coupled)
• Grid-tie PV inverters (AC-coupled) — confirm Australian approval status before grid-connected installation

GX Devices (for VRM and remote monitoring):

• Victron Cerbo GX, Color Control GX, Venus GX, Octo GX, CANvu GX

Parallel and Three-Phase Expansion:

• Up to 6 × PMP242305010 in parallel (single phase)
• 3 × PMP242305010 for three-phase output

Required Accessories (sold separately):

• MK3-USB Interface — required for VEConfigure on-site configuration
• VE.Bus Smart Dongle — optional Bluetooth monitoring

Also Consider:

• PMP482507010 — EasySolar-II GX 48/5000 (all-in-one with integrated MPPT and GX device)
• PMP483150000 — MultiPlus-II 48/15000 (higher output, stand-alone/generator only in Australia)

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Frequently Asked Questions

What is the difference between this MultiPlus-II and the larger 48/15000 model?

The 24/3000 operates on a 24V battery system and delivers 3,000VA — appropriate for marine, vehicle, and smaller off-grid installations. The 48/15000 operates on 48V and delivers 15,000VA for large residential, commercial, and industrial systems. The 24/3000 also supports parallel operation (up to 6 units), whereas the 48/15000 does not support parallel stacking.

Can this unit be used to feed excess solar energy back to the grid in Australia?

Australian grid-connection approval status for this specific model is not confirmed in the available product data. Confirm from the Victron datasheet for PMP242305010 and the Clean Energy Council approved products list before specifying for any grid-connected application in Australia. Your CEC-accredited installer can advise on the appropriate approved configuration.

What is the Storage mode charge stage and when does it activate?

Storage mode is the fourth charge stage, activating after the battery has been fully charged and maintained at float voltage for an extended period without a discharge event. It delivers a lower continuous float voltage to minimise electrolyte gassing and plate corrosion during long-term inactivity — protecting battery health when the system is connected to shore power but not in regular use.

Can the MultiPlus-II 24/3000 charge a second battery simultaneously?

Yes. An independent trickle charge output maintains a second battery — such as a starter battery or auxiliary bank — separately from the main charge output. This eliminates the need for a separate dedicated charger for the second battery.

How many units can I run in parallel for higher output?

Up to 6 MultiPlus-II 24/3000 units can be operated in parallel on a single phase. Three units configure for three-phase output, and multiple sets of three deliver combined output up to 75kW / 90kVA with over 2,000A of charging capacity. Parallel and three-phase configuration is managed through VEConfigure software (MK3-USB interface required) without hardware changes.