We are looking for 48.000 (2.000 each month for 24 months) power supply 220v AC - 12v AC

The power supply has to covered in plastic box.

The connections:

For 220 v we need only 2 wires to connect it to other 220 v power supply

For 12v we need a classic coaxial jack 5.5 mm external 2.1 mm internal

See the picture of sample.