Reliable transformers
17 Lincoln Road,
Benoni South,
Gauteng Province,
South Africa
Contact Details
Tel: +27 11 421 2333
Fax: +27 11 421 3446

Dry-Type Power & Control Transformers

Reliable Transformers has been producing Transformers and related Magnetic components for more than 30 years.

There are hundreds of thousands of our products in the field in all types of environments.

We can custom design our products to meet your specific requirements and conditions.

Our products are subjected to stringent quality control and we boast an exceptionally low failure rate.

Cooling & Enclosures
  • Open Type (No enclosure)
  • Ventilated Enclosure (IP54)
  • Sealed Enclosure (IP65) (other options available on request)
  • Winding Material
  • Copper
  • Aluminium
  • Insulation Class
  • Class B
  • Class C
  • Class F
  • Class H
  • Standard Fittings
  • Mounting Holes
  • Terminating blocks/screws
  • Rating Plates
  • Optional Fittings
  • Primary to Secondary Screens
  • Polycarbonate Terminal Cover
  • Enclosure
  • Rectifiers
  • Smoothing Capacitors
    Capacity 25VA 250KVA
    Other options available on request.
    Primary Voltages 1 1000V
    Other Voltages available on request.
    Secondary Voltages 1 1000V
    Other Voltages available on request.
    Electrical Winding Resistance, Winding ratio & Vector Verification, Load Loss, No-load Loss, Power Frequency, Insulation Breakdown.
    Mechanical Effectiveness of sealing, Paint thickness, Vibration & Noise


    Our name says it all. We have been producing top quality products for more than 30 years and will continue to innovate and improve our products to ensure that you, the customer, get the best value for your money.

    We design, manufacture and test our products strictly according to the SANS 780 and other applicable transformer specifications.


    Our warranty covers any defective workmanship and/or materials for a period of 12 Calendar months from the date of purchase. Carry in Warranty.

    Proudly made in South Africa

    Our products are proudly designed and manufactured in South Africa.

    We understand the challenges our customers face in Africa. Our engineers go the extra mile to ensure that our transformers are practical and easy to handle and install. Many of our design innovations focus specifically on lifting, moving and cable installation.

    Designed by Waxed Media © Reliable Transformers 2015