Energy Solutions

Isolation Transformer - 1:1 - 24kVA - 120/240v

£4,332.00
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ES059-USA
24kVA single phase 1:1 marine isolation transformer with 120/240V input in a powder coated steel S2 enclosure.

Collection or delivery in 1-2 weeks

Pickup available at Mercury Yacht Harbour

Usually ready in 2-4 days

Description

This Energy Solutions marine isolation transformer provides galvanic isolation between the marina shore supply and your vessel, protecting the hull, anodes and underwater fittings from the accelerated corrosion that occurs when the onboard AC earth is bonded to the sea. The dual wound design induces power onto a fully isolated secondary winding, with a screen between the primary and secondary windings rated to carry twice the full load current of the transformer, exceeding the requirements of ABYC E-8.20.1. Every transformer is built to comply with Lloyds Register (LRS) requirements and is protected with a UL approved vacuum impregnated polyester varnish. Housed in an air cooled, powder coated steel S2 enclosure, the unit includes a soft start to prevent the shore breaker tripping on connection, an input isolator and an output circuit breaker. Configured with a 240/120V input for USA specification vessels, the output can be set as 0-230V 3 wire Euro or 120-0-120V 4 wire USA to suit the switchboard. Energy Solutions has designed and built marine transformers in the UK since 1996 and can also supply single phase, split phase and three phase custom units to order.

PRODUCT DETAILS

  • 24 kVA single phase 1:1 marine galvanic isolation transformer
  • 240/120V input configured for USA specification vessels
  • Prevents galvanic corrosion by isolating the vessel from the shore earth
  • Dual wound, air cooled design in a powder coated steel S2 enclosure
  • Inter-winding screen carries twice full load current, exceeding ABYC E-8.20.1
  • Soft start, input isolator and output circuit breaker included
  • Lloyds (LRS) compliant, UL approved varnish, built in the UK

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Key specifications

TypeMarine 1:1 isolation transformer
Rated capacity24 kVA
PhaseSingle phase
Ratio1:1

Electrical

Input voltage240/120Vac 1ph 50/60Hz
Output voltage240Vac or 240/120V 1ph
Frequency50/60Hz
WindingDual wound
Inter-winding screenRated for twice full load current (exceeds ABYC E-8.20.1)
ProtectionSoft start, input isolator, output circuit breaker

Physical & mechanical

Weight180 kg
EnclosurePowder coated steel (S2 enclosure)
Dimensions450 x 550 x 730mm (LxWxH)

General

ComplianceLloyds (LRS) and ABYC E-8; UL approved vacuum impregnated varnish
Country of originUnited Kingdom

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Why do I need an isolation transformer when connecting to shore power?
Bonding the onboard AC earth to the sea, as required by good practice, Lloyds rules and the Recreational Craft Directive, creates a galvanic loop that can accelerate corrosion of the hull, anodes and underwater fittings even when anodes are fitted. An isolation transformer breaks the shore earth connection while still delivering shore power, removing that loop and protecting the vessel.
What input does the USA version use?
This model is configured with a 240/120V single phase input for USA specification vessels. The output can be provided as a 0-230V 3 wire Euro output or a 120-0-120V 4 wire USA output to match the onboard switchboard, and the unit is ABYC compliant.
Is this transformer suitable for commercial or classed vessels?
Yes. Every transformer is built to comply with Lloyds Register (LRS) requirements, uses an inter-winding screen rated to carry twice the full load current (exceeding ABYC E-8.20.1 by 100%), and is protected with a UL approved vacuum impregnated polyester varnish. Custom single phase, split phase and three phase units can also be supplied.