Three Phase Isolation Transformer

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3 Phase Isolation Transformer – Three Phase Isolation Transformers are designed to isolate the 415VAC input (Australian power grid voltage) from the 415VAC output power supply of the transformer. 

These stock Three Phase Isolation Transformers are rated at either 0.3kVA, 10kVA and 25kVA, and are used in Australia to provide a higher level of safety due to the voltage being isolated from input to output. This protects your device from voltage spikes that can occur and also filter noise in the line resulting in less feedback in the output. Isolation Transformers are used for multiple purposes including Industrial and Commercial machines/appliances.

For American or Japanese Three Phase machines/appliances that require a step down 200VAC or 220VAC output transformer, see here. For European/Chinese or Korean Three Phase machines/appliances that need a step down 380VAC transformer, see here.

Tortech also have an open transformer 0.5kVA and 2kVA rated model in-stock which is similar to the 0.3kVA version shown (Note: 0.5kVA – Star/Star Formation & 2kVA – Delta/Star Formation).

Please Note: Transformers must be hard wired into the electrical supply by a Licenced Electrician or Electrical Contractor. These items are mainly for Industrial & Factory environments with high current input supply, not for domestic use (unless specified by Electrician or Tortech Engineers).

The 300VA Open Style Isolation Transformer & 10kVA and 25kVA Isolation Transformer in IP22 Enclosure

  • Our Three Phase Isolation Transformers are designed as a Dry-type style.
  • Isolation Transformers are mainly used for safety and noise isolating purposes especially in Industrial & Laboratory environments with a higher power capacity, not for Domestic use. Single phase Isolation transformers for domestic use are listed here.
  • Our Transformers are designed and manufactured to the Highest Quality
  • All our units come with 1 year Warranty on 3 phase transformers that are designed for 20 years of life!
  • The 10kVA and 25kVA units are fitted in an indoor type enclosure (IP22), and the 0.3kVA is an open style transformer.
  • For an outdoor type enclosure (IP56), please click here for our custom design three phase transformer page where options such as Epoxy polyester powder coated mild steel or stainless steel with marine grade SS316 (to prevent salt corrosion) can be selected.
  • They must be Hard Wired into the Electrical supply by a Licensed Electrician or Electrical Contractor with a suitable circuit breaker.
  • Insulation class of materials used is Class F (155°C).
  • The units are natural convection cooled and require a suitable clearance around the transformer.
  • Ring Stud terminals are used for these transformers. Our custom transformer designs can be either a DIN rail mount blocks/standard terminal blocks or bus bars (depending on the current rating of the transformer).

About Us:

  • Tortech has over 30 years of experience in transformer design for applications such as the defence, transport, mining and the renewable energy industry.
  • Totech transformers can be supplied with routine test reports and special type test reports.
  • Tortech has an ISO9001 quality management system in place to ensure that we minimise errors and increase the reliability of our units.
  • Tortech offers excellent pre-sales and after sales support, pleasefeel free to contact one of our friendly sales staff on (02) 9642 6003
  • We can also supply the transformers for OEM equipment. We offer special discounts on bulk orders.
  • If you require other design specifications, please visit our custom made isolation transformer page here.
  • Transformers are manufactured with aluminium wite and are rated for operation in harsh Australian conditions.
  • Our designs are generally based on an ambient temperature of 50ºC, <1000m elevation and <99% Relative humidity (Non condensing).
  • We have extensive experience in R&D and have engineers dedicated to the research on "Temperature rise of dry type transformers", "Partial Discharge and short circuit strength of epoxy resin cast transformers".
  • We have been conducting presentations on the topic at various Australian universities and Engineers Australia Sydney division.
  • Tortech has been studying the distribution of forces, fields and heat flux on our transformers using Finite Element Analysis (FEA software).
  • This has helped us to manufacture special transformers for the defence and research community.

Why Us:

  • Our Transformers are of the Highest Quality. Design life of 25 years.
  • All our Units come with a 1 Year Money Back Warranty!
  • Local pre-sales and after sales support.
  • Tortech is fully equipped with testing equipment calibrated by an accredited NATA laboratory​
  • We can quote and install a Safety Fuse or Circuit Breaker Protection upon request.
  • Transformers can be specially manufactured for installations with low in-rush current requirements.
  • GOSS, NON GOSS, Uni-core and Amorphous core designs are available for special applications
  • Enclosed or Open units. Enclosures made with powder coated mild steel or stainless steel.
  • Australian and overseas manufactured units are tailor made to suit extreme Australian conditions.

For further information regarding Isolation transformers compared to Autotransformers, please click here.

If you have any questions regarding pricing, availability and further technical assistance, please contact our Sales engineers on: (02) 9642 6003, by email at: enquiries@tortech.com.au or use our Design Form.

**Please note: If not in stock, a custom model must be manufactured with lead time of 1-4 weeks* and price may vary.

* Subject to change based on work in progress.

Additional information

WeightN/A
DimensionsN/A
Product Rating

0.3kVA – 415V/415V, 5kVA – 415V/415V, 7.5kVA – 415V/415V, 10kVA – 415V/415V, 12.5kVA – 415V/415V, 15kVA – 415V/415V, 20kVA – 415V/415V, 25kVA – 415V/415V, 30kVA – 415V/415V, 35kVA – 415V/415V, 40kVA – 415V/415V, 50kVA – 415V/415V, 60kVA – 415V/415V

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