500va control panel transformers vigortronix vtx 176 500 110 p the vigortronix 500va control panel transformer 110v 55v 0 55v provides a low cost high quality solution to various applications and is suitable for 50 60hz operations br br equipped with a number of excellent features plus an earth screen between primary and secondary this well designed transformer has been manufactured with safety in mind safety class 1 indeed vigortronix control panel transformers offer amazing va