AC 240 V to DC 12 V 3A. This is a general purpose chassis mounting mains transformer. Transformer has 240 V primary windings and secondary winding. The transformer has flying colored insulated connecting leads .The Transformer act as step down transformer reducing 240 V AC to 12 V DC.
The Transformer gives two outputs of 12V, 12V and 0V. The Transformer’s construction is written below with details of Solid Core and Winding.