Specifications

7
EN Appendix
Option 3: Quattro or Multi with additional autotransformer (see fig 3)
The other alternative is to use a ‘European’ 230V/240V Quattro or Multi. The unit will connect to 240V or 208V. The output
when operating on battery can be set to 240V or 208V single phase. An additional autotransformer will be needed to convert
240V single phase to 120/240V split phase if 120V loads also need to be supplied. (Remark: a 208V output cannot be
transformed to 120/208V with an 120/240V auto transformer) The internal output grounding relay must be disabled and
replaced by an external grounding relay that will ground the neutral of the 120/240V auto transformer when operating on
battery. Victron Energy does provide 120/240V autotransformers with in-built neutral to ground relay.
Advantages of this configuration:
- Only one inverter/charger needed.
- Severe load imbalance between the two output legs is acceptable if the autotransformer is adequately sized.
Option 3: ‘European’ Quattro or Multi with additional 120/240V output autotransformer
AC source (input) Does system connect to
AC source?
Power for battery charging
taken from
Output from autotransformer
120/240V 3wire + ground
(split phase 60Hz)
Yes (neutral wire should not be
connected)
240V
120/240V 3wire + ground 60Hz
(180 degrees split phase output)
120/208V 3wire + ground
(three phase two leg 60Hz)
Yes (neutral wire should not be
connected)
208V
104/208V 3wire + ground 60Hz
(180 degrees split phase output)
240V 2 wire + ground
(single phase 60Hz)
Yes 240V
120/240V 3wire + ground 60Hz
230V 2 wire + ground
(single phase 50Hz)
Yes 230V
115/230V 3wire + ground 50Hz
208V 2 wire + ground
(single phase 60Hz)
Yes 208V
104/208V 3wire + ground 60Hz
120V 2 wire + ground
(single phase 60Hz)
No
120/240V 3wire + ground 60Hz
(inverter mode)
Not available (no input) No
120/240V 3wire + ground 60Hz
(inverter mode)
PowerControl and PowerAssist functionality will be available on the single phase input
Figure 3: ‘European’ Quattro or Multi with additional 120/240V output autotransformer (option 3)
Ground cables and not shown
Connection to second AC source not shown.