Technical Features

Three phase transformers

Alphabet have been making Three Phase Transformers for over 30 years, the range goes from 5VA to 75KVA. Double Wound Transformers can be supplied where Safety Isolation is required. Auto Transformers are much cheaper, if just a 20% change of voltage is required wilh no isolation. They can be enclosed in a floor standing case and controls can also be added. Full encapsulation up to IP44 can also be supplied.

Standard Range

  • C E Marked, Double Wound Isolation Transformers
  • Built in accordance with BS3535 & BS415
  • Trouble free Installation
  • Easily accessible fixings
  • Moving cage type screw terminals
  • Varnish impregnation and stoving
  • Insulation class H, Temperature rise up to 115 deg C
  • Double or Auto wound
  • High quality customised enclosures available
  • Lifting rings fitted from 5kVA upwards
  • Optional copper foil interwinding screen
  • Optional temperature shutdown
  • Spare custom terminals
  • Optional input and output fuses


    • POWER
    VA    		 DIMENSIONS mm WEIGHT
    A B C D E Kg
    500 VA 169 85 185 155 65 8.4
    1 kVA 199 95 220 185 75 15
    2 kVA 199 126 220 185 115 21
    3 kVA 290 125 260 224 95 34
    5 kVA 290 150 260 224 120 39
    7 kVA 355 170 345 310 120 50
    10 kVA 355 175 370 310 126 70
    15 kVA 355 203 370 310 152 84
    20 kVA 355 228 370 310 177 100
    25 kVA 355 278 370 310 228 109
    30 kVA 530 175 500 480 126 120
    40 kVA 530 175 500 480 126 134
    50 kVA 530 215 500 480 164 183
    60 kVA 530 254 500 480 202 243
    70 kVA 530 254 500 480 202 267
    80 kVA 530 317 530 480 266 344
    100kVA
    & Over    		 DIMENSIONS AVAILABLE ON REQUEST