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Isolation Transformer
Mastervolt

Isolation Transformer

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From shore power to onboard network
You need to be careful when introducing shore power onboard, especially when the yacht is made of aluminium or steel. An incorrectly configured system can result in electrolysis, which will slowly but surely corrode the metal components. It is also important to protect the engine, rudder, rudderstock, propeller and thruster on composite yachts. A Mastervolt isolation transformer will help preserve your valuable boat and provide you with the security of a correctly earthed 230V system.

Select the right transformer for your system:

Lightweight Mass GI transformer
  • Ultra modern high frequency electronic switch technology
  • Lightweight and compact
  • Integrated Soft Start function
  • Connect to power from 90–255V and from 45–65Hz
  • Units can be parallel coupled for higher capacity
  • Higher efficiency, limited heat development

    IVET-D isolation transformers
  • High quality toroidal transformer in robust casing, including circuit breaker
  • Standard Soft Start for the suppression of inrush current at shore connection
  • Multi tap version for both 230V/50Hz and 120V/60Hz shore voltage

    IVET heavy-duty series
  • High-quality isolation transformers without casing (for self installation)
  • Optional Soft Start, in synthetic casing
  • Capacities of 25–22kW

    Modern transformer technology: Light, silent, reliable and easy
    Mastervolt’s Mass GI offers the latest high frequency switching technology as well as Soft Start for peak loads when connecting to the shore.
    Weighing a mere six kilograms, LED lights on the casing indicate load and overload. The transformer can be remote controlled via a
    panel and has the option of automatically starting the generator when there is a shore current overload.

    Higher capacity via parallel switching
    Parallel switching of the Mass GI units increases the shore
    power capacity. Two 16A/3.5kW units ensures 32A/7kW, four
    units give 64A/14kW.

    Global solution
    The IVET-D multi-tap is suitable for 230V/50Hz and 120V/60Hz
    (American or Caribbean).

    Install anywhere
    With its maritime, aluminium casing, this isolation transformer
    can be fitted in any position on a wall or floor. No rubber
    mountings are necessary because the unit does not vibrate or
    hum. The Mass GI also features professional connections with
    strain relief cable glands.

    Practical tips:
  • Determine shore and onboard current: 230V, 120V or both
  • Determine the capacity. Maximum load with onboard power usage: amount of amps and kW
  • Note sizes and weight; the mass GI is 75% lighter and 60% smaller compared to low frequency transformers

    Remember:
  • Detection system for IVET heavy duty automatically supplies onboard system with 230V in case of a 120V/60Hz shore connection (or vice versa)
  • Systemswitch or Masterswitch for integrating shore power, generator and/or inverter
  • Connects to 12V or 24V system, battery charger or Mass Combi

    • After ordering online, you will receive an automated email confirmation containing your order details. Your order will then be confirmed within a few minutes of placing your order.

    It is our policy to ensure we deliver to our customers in a timely manner. In order to achieve this we use a range of freight companies depending on the size and weight of your order. In some instances we may use a number of carriers to get your products to you. For example, chain may come by road, some electronic equipment by air.


    Most orders are shipped within 2 - 5 Days

    Shipping rates

    Orders delivered to Australian Post Codes under $499 attract an $18.00 shipping charge.

    Orders of $499 or more ship free.*


    For Remote areas and bulky items. If the cost to send is vastly different to our standard delivery costs, someone from our team will contact you prior to dispatch to arrange further payment or to issue a refund if you are not happy with the additional charges.

    International orders will be charged at $0.00 initially and our staff will be in contact with a shipping quote. If the quote is not accepted the customer reserves the right to cancel their order and be refunded in full.

    Should you have any queries or concerns about shipping, please don't hesitate to get in touch by clicking the support button on bottom right of the page.

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