Mains transformers have the task of transforming input voltages to the required output voltages. A mains transformer has two separate coils. Version sizes range from single-phase to 1 kVA and multi-phase up to 5 kVA. Coil types are available in solder plug, clamp and bracket versions.
Isolating transformers transform mains voltages at 1:1 and perform, through their two coils, electrical separation, separating the earthing potential from the primary coil to the secondary coil. Version sizes range from single-phase to 25 kVA and multi-phase up to 40 kVA. Coil types are available in solder plug, clamp and bracket versions.