This picture is outdated, new one to be taken soon.
The TP3 Thermopak is a 3KVa power supply unit.
It includes a heavy duty voltage step-down transformer which converts the mains supply to a very low voltage, as required for resistance soldering, but with a secondary capable of carrying a high current.
Like the TP25 the TP3 has a second transformer which supplies the control circuit (switches, indicator lights etc.) with a 24V supply ensuring that the equipment is safe for the operator to use. In addition an earthed screen is between the primary and secondary windings of the heavy duty transformer.
|H 300mm x W 360mm x L410mm
|2V, 3V, 4V, 5V, 6V (nominal)