Majestic Transformer Co Supplier, Designer, and Manufacturer of Custom Built Transformers, Chokes, and Associated Power Supplies
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ISO 9001:2001

Industrial Cased Three Phase Transformers


3 Phase transformer in industrial caseOur transformers in this range are suitably protected by a sheet metal case. They are normally wall mountable up to 2250VA and floor standing above this rating. Many requirements are for isolation and/or conversion of three phase machines, or creation of a neutral where none is available. Our standard cases are IP33 but we can supply up to IP66 if required, usually with little or no addition to the supply lead-time.

All our isolation transformers incorporate an electrostatic screen between the primary and secondary windings and are built in compliance with the latest European standards. Other worldwide standards, e.g. UL, CSA can also be met. In addition, isolation from the main supply may not be required, and in this instance an Auto Wound transformer may be considered to economise on size and cost. Contact our sales office for details.

3 Phase transformer in industrial case (shown open)
TOTAL SEC VA RATING SIZE (in mm)
W x D x H
Dispatch Within
75VA 337 x 220 x 270 7/10 days
210VA 337 x 220 x 270
360VA 337 x 220 x 270
600VA 337 x 220 x 270
900VA 337 x 220 x 270
1500VA 350 x 242 x 353
2400VA 350 x 242 x 353
3.0kVA 525 x 450 x 575 10/14 days
7.2kVA 525 x 450 x 575
12kVA 525 x 450 x 575
15kVA 625 x 500 x 675 2/3 weeks
30kVA 770 x 600 x 835
50kVA 770 x 600 x 835
125kVA 1050 x 800 x 875 4/6 weeks

These transformers are also available without enclosures for panel mounting
- see Open Frame Control Transformers Three Phase.


Please contact our SALES OFFICE for full details.