Victron Quattro-II 24/5000/120-50/50 Inverter/Charger: Powering Off-Grid Vehicle Systems

Elevate the energy efficiency and reliability of your large vehicle's 24V system with the Victron Quattro-II 24/5000/120-50/50, an innovative inverter/charger designed for off-grid buses, trucks, and recreational vehicles. This advanced solution integrates seamlessly with generators and solar panels, offering unparalleled support for off-grid living and travel.

Dual AC Inputs for Reliable Power Connectivity

The Quattro-II enhances your mobile or stationary setup with the flexibility to connect to two independent AC sources. Whether drawing power from the public grid, a generator, or both, the Quattro-II's intelligent system ensures a continuous power supply by automatically switching to the active source, perfect for vehicles that transition between remote and urban environments.

Seamless Power with Two AC Outputs

With its no-break functionality, the Quattro-II guarantees an immediate transfer of power to your vehicle's essential systems in less than 20 milliseconds during an outage, ensuring no disruption to sensitive equipment. The secondary AC output activates only when external AC power is available, ideal for appliances that shouldn't drain the battery, enhancing energy conservation on the go.

Expand Your Power Capabilities in Parallel

For vehicles requiring substantial power, the Quattro-II's capability to operate in parallel with up to six units means you can significantly increase your output power and charging capacity. This feature is essential for large off-grid vehicles or mobile operations needing robust energy solutions.

Advanced Power Management Features

  • Split Phase & Three Phase Options: Tailor your energy setup with split phase or three-phase operation, accommodating a variety of electrical systems and enhancing your vehicle's power distribution.
  • PowerControl & PowerAssist: These technologies optimize your generator or shore power usage, preventing overloads by intelligently managing power consumption and boosting your power supply with battery power during peak demand times.
  • Solar Compatibility for Uninterrupted Energy: Ideal for off-grid systems, the Quattro-II works seamlessly with PV and alternative energy sources, ensuring you have AC power even during grid failures.

Effortless System Configuration and Monitoring

Configure your system with ease using VE.Bus Quick Configure and VE.Bus System Configurator software. On-site and remote monitoring options, including the Color Control GX and smartphone connectivity, offer you full control over your energy system, wherever your travels take you.

Designed for Off-Grid Buses and Trucks:

This Victron inverter/charger is specifically tailored for large vehicles operating in off-grid conditions, ensuring reliable, efficient power management for buses, trucks, and RVs. Its robust design and advanced features make it an essential component for any serious off-grid vehicle setup.

Victron Energy Limited Warranty Policy

Victron Energy warrants its products to be free from defects in workmanship and materials for a period of 5 years from the date of purchase by the end user, with a maximum of 66 months from the Victron Energy invoice date. Exceptions on this are: lead acid batteries; 2 years from date of purchase by the end user, with a maximum of 30 months from the Victron Energy invoice date, Lithium-ion batteries; 3 years from date of purchase by the end user. In addition to this proof of correct battery usage is required when making a battery warranty claim.

During this period, Victron Energy will, at its option, repair or replace the defective product free of charge. The warranty does not include performing or reimbursing de‐installation, transportation and re‐installation. This warranty will be considered void if the unit has suffered any physical damage or alteration, either internally or externally, and does not cover damages arising from improper use like:
• Reverse of battery polarity.
• Inadequate connection.
• Mechanical shock or deformation.
• Contact with liquid or oxidation by condensation.
• Use in inappropriate environment (dust, corrosive vapor, humidity, high temperature, biological infestation...).
• Breakage or damage due to lightning.
• Connection terminals and screws destroyed or other damages, like overheat, due to insufficient tightening.
• For any electronical breakage except due to lightning (reverse polarity, over‐voltage due to external cause), the state ofthe internal control diode and of the inputs/output X and Y capacitors determine the warranty.

This warranty will not apply where the product has been misused, neglected, improperly installed, or repaired by anyone else than Victron Energy or one of its authorized Qualified Service Partners. In order to qualify for the warranty, the product must not be disassembled or modified.

Repair or replacement are our sole remedies and Victron Energy shall not be liable for damages, whether direct, incidental,special, or consequential, even caused by negligence or fault.

Victron Energy owns all parts removed from repaired products. Victron Energy uses new or reconditioned parts made by various manufacturers in performing warranty repairs and building replacement products. If Victron Energy repairs or replaces a part of a product, its warranty term is not extended. In case of replacement the new component has a warranty of 6 months, without effect on the initial warranty period. All remedies and the measure for damages are limited to the above. Victron Energy shall in no event be liable for consequential, incidental, contingent orspecial damages, even if having been advised of the probability of such damages. Any and all other warranties expressed or implied arising by law, course of dealing, course of performance, usage of trade or otherwise, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited in duration to a period of two (2) years from the date of purchase.

Life Support Policy
As a general policy, Victron Energy, does not recommend the use of any of its products in life support applications where failure or malfunction of the Victron Energy's product can be reasonably expected to cause failure of the life support device or to significantly affect its safety or effectiveness. Victron Energy does not recommend the use of any of its products in direct patient care. Victron Energy will not knowingly sell its products for use in such applications unless it receives in writing assurances satisfactory to Victron Energy that the risks of injury or damage have been minimized, the customer assumes all such risks, and the Liability of Victron Energy is adequately protected under the circumstances.

As a product requires service, it must be brought back to the place of purchase. In case no contact can be taken with the merchant, or if he is either unable or not allowed to provide service, direct contact should be taken with Victron Energy.

Warranty on Repairs
The warranty period on products or on printed circuits boards repaired by Victron Energy as well as on printed circuit boards for replacement is 6 months from delivery by Victron Energy.

It is the responsibility of the sender to sufficiently package these products. The transport must be organized in a way to avoid any damage, especially when a single unit or heavy unit is sent.

If a part of the terms and conditions set out above is held invalid, void or unenforceable due to any particular national or international legislation, it shall not affect other parts of the terms and conditions remaining.

For Australia only
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.


Quattro-II 24/5000/120-50
PowerControl & PowerAssist Yes
Transfer switch 50 A
Maximum AC input current 50 A
DC Input voltage range 19–33 V
Output Output voltage: 230 VAC ± 2% Frequency: 50 Hz ± 0.1% (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
Maximum 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 Input voltage range: 187-265 VAC
Input frequency: 45 – 65 Hz power factor: 1
Charge voltage 'absorption' 28.8 V
Charge voltage 'float' 27.6 V
Storage mode 26.4 V
Max. battery charge current (4) 120 A
Battery temperature sensor Yes
Auxiliary output Yes (32A) Default setting: switches off when in inverter mode
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 cooling)
Humidity (non-condensing) max 95%
Material & Colour Steel, blue RAL 5012
Protection category IP21
Battery-connection M8 bolts
230 V AC-connection Screw terminals 13 mm² (6 AWG)
Weight 31 kg
Dimensions (hxwxd) 607 x 329 x 149 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
IEC 61000-6-1, IEC 61000-6-2, 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 3) Non-linear load, crest factor 3:1
2) Protection key: 4) Up to 25°C ambient
a) output short circuit 5) Programmable relay which can be set for general alarm, DC under voltage or
b) overload genset start/stop function. AC rating: 230V / 4A, DC rating: 4A up to 35VDC and 1A
c) battery voltage too high up to 60VDC
d) battery voltage too low
e) temperature too high
f) 230 VAC on inverter output
g) input voltage ripple too high