Victron
Victron Isolation Transformer 4500W Auto (115/230V)
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Victron Isolation Transformer 4500W Auto is a professional marine transformer that fully breaks the electrical connection between shore power and your vessel, with the convenience of automatic input voltage detection. Shore power feeds the primary winding while the boat runs from the isolated secondary, so there is no direct continuity between the two. This eliminates stray current and galvanic corrosion, protecting your shaft, propeller, sacrificial anodes and other underwater metals, and it removes the need for a separate galvanic isolator or polarity alarm.
The Auto model senses the incoming supply and switches itself between 115V and 230V input modes: it selects 115V for a supply between 88 and 130V and 230V for a supply between 185 and 250V. This makes it ideal for vessels that cruise between regions with different mains voltages, since no manual reconfiguration is needed when you change dock. At 4.5 kVA it delivers up to 19A at 230V (38A at 115V), and a 1:1.05 winding ratio raises the output by 5% to compensate for the voltage drop common on long marina supply cables.
Toroidal winding technology keeps the unit quiet and efficient, and a built-in soft start limits inrush current so the shore breaker does not trip when you plug in. LED indicators show the operating mode, the rugged aluminium enclosure is rated IP21, and like all core Victron products the transformer carries a five year warranty.
PRODUCT DETAILS
- Automatic input voltage detection: switches between 115V and 230V to suit the shore supply
- Full galvanic isolation between shore power and vessel, stopping stray-current and galvanic corrosion
- Removes the need for a separate galvanic isolator or polarity alarm
- 4.5 kVA capacity delivering up to 19A at 230V (38A at 115V)
- 1:1.05 winding ratio boosts output by 5% to offset marina voltage drop
- Toroidal core for low noise and high efficiency, with soft start to protect the shore breaker
- LED mode indicators, rugged aluminium enclosure, IP21 protection, five year warranty
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Key specifications
| Continuous power | 4.5 kVA (4500 W) |
| Rated current | 19 A at 230V (38 A at 115V) |
| Input voltage | 115 / 230 V (automatic detection) |
| Output voltage | 120 / 240 V |
| Transformer type | Isolation (toroidal) |
| Protection category (IP) | IP21 |
Electrical
| Continuous power | 4.5 kVA (4500 W) |
| Output current rating | 19 A at 230V, 38 A at 115V |
| AC input voltage | 115 or 230 V, automatic detection (88-130V to 115V; 185-250V to 230V) |
| AC output voltage | 120 or 240 V |
| Automatic input voltage detection | Yes (88-130V to 115V; 185-250V to 230V) |
| Voltage ratio (input to output) | 1:1.05 |
| Frequency | 50/60 Hz |
| Galvanic isolation | Yes |
| Maximum 240V feed-through current | Not applicable |
| Neutral current (30 min) | Not applicable |
| Neutral current (continuous) | Not applicable |
| Soft start (inrush current limiter) | Yes |
| Over-temperature protection | Yes |
| Ground relay for Multi/Quattro | Not applicable |
Connections
| Input circuit breaker | Yes |
| Split-phase output balancing | Not applicable |
Mechanical
| Dimensions (h x w x d) | 362 x 258 x 221 mm |
| Weight | 21.8 kg |
| Enclosure material | Aluminium (blue RAL 5012) |
| Cooling | Fan cooled (temperature-controlled) |
Environmental
| Operating temperature range | -20 to +40°C |
| Humidity | Max 95%, non-condensing |
| Protection category | IP21 |
Standards
| Safety | EN 60076 |
| Marine approvals / certificates | CE (Declaration of Conformity), Russian River Boat Register |
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