SKU: 75383855383

Victron Isolation Transformer 7000W

Sale price$424.44 Regular price$471.60
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Description

Victron Isolation Transformer 7000WInput: 230 V Output: 230 V Frequency: 50 60Hz Rating: 32A Soft start Transformer type: Toroidal (low noise low weight) Input circuit breaker Dimensions: 36. 2 x 25. 8 x 21. 8 cm Weight: 28kg The isolation transformer eliminates any electrical continuity between AC shore power and the boat. It is essential for safety and eliminates the need for galvanic isolators and polarity alarms. Safety is taken for granted in case of a normal on shore

  • Input: 230 V
  • Output: 230 V
  • Frequency: 50/60Hz
  • Rating: 32A
  • Soft start
  • Transformer type: Toroidal (low noise low weight)
  • Input circuit breaker
  • Dimensions: 36.2 x 25.8 x 21.8 cm
  • Weight: 28kg

The isolation transformer eliminates any electrical continuity between AC shore power and the boat. It is essential for safety and eliminates the need for galvanic isolators and polarity alarms. Safety is taken for granted in case of a normal on-shore installation. A fuse will blow or a GFCI (Ground Fault Current Interrupter) will trip in case of a short circuit or current leakage to ground. Connecting the ground wire of the shore-side supply to the metal parts of the boat will result in galvanic corrosion (see below). Bringing only the live and neutral wire on board results in an unsafe situation because GFCI's will not work nor will a fuse blow in case of a short circuit to a metal part on the boat.

Galvanic corrosion occurs when two dissimilar metals in electrical contact are simultaneously exposed to an electrically conducting fluid. Seawater and to a lesser extent fresh water are such fluids. In general the more active alloy of the couple corrodes preferentially while the less active (more noble) material is cathodically protected. The rate of galvanic corrosion is a function of several variables including area ratios conductivity of the fluid temperature nature of the materials etc.

It is a misunderstanding that galvanic corrosion occurs only in metal and aluminium hulls. In fact it can occur on any boat as soon as a metallic part (the shaft and propeller) is in contact with water. Galvanic corrosion will quickly dissolve your sacrificial anodes and attack the shaft propeller and other metal parts in contact with water as soon as the boat is connected to the shore-side supply.

It might therefore be tempting not to connect the ground conductor: this is however extremely dangerous because GFCI's will not work nor will a fuse blow in case of a short circuit to a metal part on the boat. The best solution to avoid galvanic corrosion and at the same time prevent any unsafe situation is to install an isolation transformer to connect to the shore-side supply.

The isolation transformer eliminates any electrical continuity between shore power and the boat. The shore power is fed to the primary side of the transformer and the ship is connected to the secondary. The isolation transformer completely isolates the boat from the shore ground. By connecting all metal parts to the neutral output on the secondary side of the transformer a GFCI will trip or a fuse will blow in case of a short circuit.

Soft start is a standard feature of a Victron Energy isolation transformer. It will prevent the shore power fuse from blowing due to the inrush current of the transformer which would otherwise occur.

It is also recommended for optimal safety to connect the secondary neutral of the transformer to ground when the boat is out of the water.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 75383855383

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Kraig Cash
Grantham, US
★★★★★ 5
Top notch
Size: 300A Fuse Holder
Very good quality
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Reviewed in the United States on January 8, 2026
A
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Awesome works just like they said it does.
Boise, US
★★★★★ 5
It’s good
Size: 300A Fuse Holder
It does it’s job.
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Reviewed in the United States on January 18, 2026
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Anthony S
Grantham, US
★★★★★ 4
Cover too loose.
Size: 300A Fuse Holder
Nice looking, decent quality, versatile for different gauges. My only complaint with this holder is the cover doesn’t stay on very well, bought 3, and all 3 pop off easily, you will need to zip tie on.
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Reviewed in the United States on January 12, 2026
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Kurtiss s.
San Leandro, US
★★★★★ 5
Works as it should.
Size: 300A Fuse Holder
I’ve had several of these in my build for over a year now. Zero issues.
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Reviewed in the United States on December 3, 2025
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Clint
Battle Creek, US
★★★★★ 5
Good brand
Size: 300A Fuse Holder
Good product
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Reviewed in the United States on November 5, 2025

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