Enhanced Power Solutions for RVs and Caravans

The MultiPlus-II is a versatile inverter/charger tailor-made for the unique energy demands of RV, marine and caravan enthusiasts. The MultiPlus-II seamlessly manages your on-the-go power needs. Its robust design accommodates the flexible power requirements of modern caravans, providing a reliable power source for a wide array of appliances, even while traversing remote off-grid locations. This powerhouse brings unparalleled energy management with a massive 220A mains charger and a 50A AC transfer switch, providing you with continuous and reliable power.

Robust Inverter for All Your Appliances

The heart of the MultiPlus-II is its robust 5000VA / 4000W inverter, equipped with a reliable toroidal transformer capable of delivering a peak power of 9000W. This means you can run virtually any appliance that plugs into a standard 10A or 15A power point, from air conditioning units to kitchen appliances, all with the assurance that your power supply can handle the load with ease. Its substantial power output and surge capacity ensure that your travel experience is marked by convenience and reliability, letting you focus on making memories rather than managing energy.

PowerControl and PowerAssist: Optimized Power for Your Journey

Understanding the fluctuating power environment in RVs, the MultiPlus-II ensures that your vehicle's generator or grid connection is never overwhelmed. It intelligently allocates surplus power for charging, and when extra energy is needed, it supplements with battery power, guaranteeing a constant, stable supply.

Uninterrupted Comfort with Seamless Energy Management

The MultiPlus-II stands out during grid failures, maintaining an uninterrupted power supply to your RV's essential systems. With its ultra-fast switching capability, it guarantees that your comfort and convenience are never compromised, allowing you to enjoy all the luxuries of home while on the move.

Efficient Energy Utilization with Dual AC Outputs

Equipped with dual AC outputs, the MultiPlus-II dedicates power to critical systems without draining your storage batteries. Secondary systems, such as water heaters, can be powered only when external AC is available by using AC output 2, preserving battery life for when you need it most.

Expandable Power for Larger Vehicles and Off-Grid Use

For larger RVs requiring more power, the MultiPlus-II can be scaled up. Multiple units can run in parallel, delivering substantial output for all your energy needs. This scalability makes it an ideal solution for extended travel and off-grid living, where power demands can be as unpredictable as your next destination.

Remote System Management for Easy Control

Manage your power system remotely with intuitive monitoring and control solutions. Whether through a dedicated control panel or a smart device, the MultiPlus-II keeps you informed and in control, ensuring your adventures are powered safely and efficiently.

For your caravanning and boating adventures, the MultiPlus-II offers the power and flexibility you need to travel with confidence. It provides a reliable energy hub that meets the demands of both your journey and your destination


MultiPlus-II 12/5000/220-50
PowerControl & PowerAssist Yes
Transfer switch 50 A
Maximum AC input current 50 A
DC Input voltage range 12V: 9.5 – 17 V
Output 230 VAC ± 2%
Frequency 50 Hz ± 0.1%
Cont. output power at 25°C (3) 5000 VA
Cont. output power at 25°C 4000 W
Cont. output power at 40°C 3700 W
Cont. output power at 65°C 3000 W
Max apparent feed-in power 5000 VA
Peak power 9000 W
Maximum efficiency 96%
Zero load power 18 W
Zero load power in AES mode 12 W
Zero load power in Search mode 2 W
AC Input voltage range 187-265 VAC
Input frequency 45 – 65 Hz
Charge voltage 'absorption' 14.4 (adjustable)
Charge voltage 'float' 13.5 (adjustable)
Storage mode 13.5 (adjustable)
Max. battery charge current (4) 12 V: 220 A
Battery temperature sensor Yes
Auxiliary output Yes (32A)
External AC current sensor (optional) 50 A or 100 A
Programmable relay (5) Yes
Protection (2) a-g
VE.Bus communication port For parallel and three phase operation, remote monitoring and system integration
General purpose com. port Yes (2x)
Remote on-off Yes
Operating temperature range -40 to +65°C (fan assisted)
Humidity (non-condensing) Max 95%
Material & Colour Steel, blue RAL 5012
Protection category IP22
Battery-connection M8 bolts
230 V AC-connection Screw terminals 13 mm² / AWG6
Weight 33 kg
Dimensions (h x w x d) 12V: 702 x 345 x 152 mm
Safety EN-IEC 60335-1, EN-IEC 60335-2-29, EN-IEC 62109-1, EN-IEC 62109-2
Emission, Immunity EN 55014-1, EN 55014-2, EN-IEC 61000-3-2, EN-IEC 61000-3-3, EN-IEC 61000-6-1, EN-IEC 61000-6-2, EN-IEC 61000-6-3
Uninterruptible power supply Please consult the certificates on our website.
Anti-islanding Please consult the certificates on our website.
  1. Can be adjusted to 60 Hz
  2. Protection key:
    • a) output short circuit
    • b) overload
    • c) battery voltage too high
    • d) battery voltage too low
    • e) temperature too high
    • f) 230 VAC on inverter output
    • g) input voltage ripple too high
  3. Non-linear load, crest factor 3:1
  4. Up to 25°C ambient
  5. Programmable relay which can be set for:
    • General alarm
    • DC under voltage
    • Genset start/stop function.
      • AC rating: 230V / 4A
      • DC rating: 4A up to 35VDC and 1A up to 60VDC