Victron Energy Quattro II 48/5000/70-50 Inverter/Charger

Two AC Inputs & two AC Outputs Unique PowerAssist feature True sine wave inverter Adaptive charging
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The Victron Energy Quattro II 48/5000/70-50 Inverter/Charger can be connected to two independent AC sources, for example shore-side power and a generator, or two generators. The Quattro-II will automatically connect to the active source. The main output has no-break functionality. In the event of a grid failure, or shore or generator power being disconnected, the Quattro-II takes over the supply to the connected loads. This happens so fast (less than 20 milliseconds) that computers and other electronic equipment will continue to operate without disruption. The second output is live only when AC is available on one of the inputs of the Quattro-II. Loads that should not discharge the battery, such as air-conditioning or a water heater, can be connected to this output.

The Quattro-II will prevent overload of a limited AC source, such as a generator or shore power connection. First, battery charging will automatically be reduced when otherwise an overload would occur. The second level will boost the output of a generator or shore side supply with power taken from the battery.

Please Note: Picture used for illustrative purposes ONLY.



  • Two AC inputs & two AC outputs
  • Unique powerassist feature
  • True sine wave inverter
  • Adaptive charging
  • Virtually unlimited power thanks to parallel operation



Powercontrol & Powerassist Yes
Transfer Switch 50 A
Maximum Ac Input Current 50 A
Dc Input Voltage Range 38-66 V
Output Voltage 230 VAC - 2%
Frequency 50 Hz - 0,1% (1)
Cont. Output Power At 25C (3) 5000 VA
Cont. Output Power At 25C 4000 W
Cont. Output Power At 40C 3700 W
Cont. Output Power At 65C 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 / 57,6 V
Charge Voltage 'Float' 27,6 / 55,2 V
Storage Mode 26,4 / 52,8 V
Max. Battery Charge Current (4) 70 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 Rang e -40 to +65C (fan assisted cooling)
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 mm (6 AWG)
Weight 30 kg
Dimensions (Hxwxd) 560 x 328 x 148 mm
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