Express Transformers & Controls Ltd

One Phase Transformers

Express Transformers and Controls Limited manufacture a range of single phase transformers. These are split into two broad varieties, standard panel transformers, details of which can be found here and custom built transformers.

The majority of what we do is design and manufacture single phase transformers to suit any purpose you may have. Some examples of the work we have done for various company's can be found here.

Panel Transformers

Panel transformers come in many shapes and sizes. For convenience Express Transformers carries a standard range of products details of which can be found below. In addition we can manufacture any transformer you require, examples of our work are also shown below.

Standards. Dimensions. Special Tx's. Top of Page.

Standard Range of Transformers

Express Transformers manufacture a range of 46 transformers from 50 VA to 2500 VA that conform to BS EN60742 available with harmonised primary voltages of 0-220-230-240 volts or 0-380-400-415 volts and secondary voltages of 24 to 230 volts all centre tapped.

All transformers incorperate a touch-proof terminal system approved by UL, CSA, VDE, etc.

Examples of the standard range of panel transformers manufactured

Reference Primary Volts Secondary Volts Ratings Stocked (VA)

ET/IEC...230-24 0-220-230-240 12-0-12 50-100-200-300-500

ET/IEC...400-24 0-380-400-415 12-0-12 50-100-200-300-500

ET/IEC...230-48 0-220-230-240 24-0-24 50-100-200-500

ET/IEC...400-48 0-380-400-415 24-0-24 50-100-200-500

ET/IEC...230-110 0-220-230-240 55-0-55 50-100-200-300-500-750-1000-1500-2000-2500

ET/IEC...400-110 0-380-400-415 55-0-55 50-100-200-300-500-750-1000-1500-2000-2500

ET/IEC...400-230 0-380-400-415 115-0-115 50-100-300-500-1000-1500-2000-2500

These are normally available ex-stock.

Panel Index Top of Page

EN60742 Spec. Tx Dimensions

Dimensions in millimeters

Ref Cont. VA Load Inrush VA A B C D E F Weight In kg

ET/IEC-50 50 67 76 78 56 45 95 7 x 4 1.35

ET/IEC-100 100 151 87 85 70 57 111 9 x 5.5 2.30

ET/IEC-200 200 342 124 112 65 70 89 12 x 6 3.70

ET/IEC-300 300 600 124 112 90 70 114 12 x 6 5.50

ET/IEC-500 500 1137 154 145 87 94.5 112 12 x 7 8.00

ET/IEC-750 750 2079 154 145 110 94.5 142 12 x 7 11.50

ET/IEC-1000 1000 2930 184 162 102 130 162 14 x 8 16.00

ET/IEC-1500 1500 5070 197 189 114 132 170 14 x 8.5 20.50

ET/IEC-2000 2000 7800 197 189 134 132 205 14 x 8.5 25.25

ET/IEC-2500 2500 11300 197 189 184 132 255 14 x 8.5 34.5

Load inrush VA is specified for those customers supplying contactor loads from the transformer secondary. It is defined as the contactor closing current which produce a 5% drop in transformar secondary voltage.

Panel Index Top of Page

Special Transformers

As a company we are capable of designing and producing a wide range of transformers. These can be ferrite or |iron cored and range in size from millimetres to metres across. What follows are a few examples of the transformers we have made in the last year.