Victron
Victron Autotransformer 120/240V 32A
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Victron Autotransformer 120/240V 32A converts between 120V and 240V and balances the split-phase output of large inverter/chargers and generators. As a step-up transformer it doubles a 120V supply to a 120/240V split-phase output, and as a step-down transformer it takes 240V down to 120V, giving marine and off-grid systems the flexibility to adapt to whatever shore or generator configuration they meet.
Its most valuable role is balancing an unbalanced split-phase (120/0/120) supply. When 120V loads are spread unevenly across the two legs, one leg can reach its limit while the other still has spare capacity, so the supply is never fully used. Wired to create a new neutral, the autotransformer absorbs the imbalance through its windings so both 120V legs of the source share the load, unlocking the full power of a generator or two stacked inverters. It can also balance the output of a single 240V inverter feeding a split-phase system.
A ground relay is built into the enclosure for use with a Victron MultiPlus or Quattro, creating the neutral-to-earth bond that a GFCI needs when the inverter/charger runs in inverter mode. The unit is over-temperature protected: if it overheats the internal circuit breaker trips and is reset manually. Rated to 32A pass-through current in a toroidal design, it does not provide galvanic isolation.
PRODUCT DETAILS
- Steps 120V up to a 120/240V split-phase output and steps 240V down to 120V
- Balances unbalanced 120V legs so a generator or stacked inverters deliver their full power
- Absorbs split-phase load imbalance through the transformer windings via a new neutral
- Built-in ground relay for use with a Victron MultiPlus or Quattro inverter/charger
- Rated 32A maximum feed-through current with a two-pole 32A input circuit breaker
- Over-temperature protection with a manual-reset circuit breaker
- Toroidal transformer in an aluminium enclosure, rated IP21
- Does not provide galvanic isolation (an isolation transformer is required for that)
No compatible transducers listed for this product.
No spares or accessories listed for this product.
Key specifications
| Continuous power | Not applicable |
| Rated current | 32 A |
| Input voltage | 120 / 240 V |
| Output voltage | 120 / 240 V |
| Transformer type | Autotransformer (toroidal) |
| Protection category (IP) | IP21 |
Electrical
| Continuous power | Not applicable |
| Output current rating | 32 A |
| AC input voltage | 120 / 240 V |
| AC output voltage | 120 / 240 V |
| Automatic input voltage detection | No |
| Voltage ratio (input to output) | Not applicable |
| Frequency | 50/60 Hz |
| Galvanic isolation | No |
| Maximum 240V feed-through current | 32 A |
| Neutral current (30 min) | 32 A (3800 VA) |
| Neutral current (continuous) | 28 A @ 40 C |
| Soft start (inrush current limiter) | Not stated |
| Over-temperature protection | Yes (manual reset) |
| Ground relay for Multi/Quattro | Yes (included) |
Connections
| Input circuit breaker | Yes (two-pole, 32 A) |
| Split-phase output balancing | Yes |
Mechanical
| Dimensions (h x w x d) | 425 x 214 x 110 mm |
| Weight | 12.5 kg |
| Enclosure material | Aluminium |
Environmental
| Operating temperature range | Not stated |
| Humidity | Not stated |
| Protection category | IP21 |
Standards
| Safety | EN 60076 |
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