Hooking up the Topaz Isolated Transformer


Hello everyone,
Could someone teach me to connect wires to the Topaz transformer please?
I would like to connect my 240V power line to the Topaz input and get 120V out of it.
Thanks,
Calvin
dangcaonguyen

Showing 4 responses by imhififan

https://cdn.head-fi.org/a/9999137.jpg

CAUTION ! YOU'RE WORKING ON MAINS VOLTAGE !!!
If you understand the diagram, go ahead diy. IF in doubt, hire an electrician.  

But before I start, I still really need help from our community to confirm the connections in the diagram is correct. The reason I am asking is because when I open up the unit, I saw the shield wire hooked up to X4 and H4 which contradicts to the diagram.
OK.This diagram show S1 and S2, the connection still the same, parallel=120V, in series=240V
http://daitronglobal.com/products/power/image/910_3.gif
Like I said in my above post The OP is wiring the xfmr as a step down transformer. Primary of xfmr will be fed from 2 Hot Ungrounded conductors. S1 Must be removed from H4. Period!
Thanks @jea48 corrected my mistake, my bad!
Jim, just for my curiosity, why don’t you recommend OP move S1 to ground terminal? Isn’t the electrostatic shield need to be grounded to divert primary noise to ground?
After thinking carefully, I decided to hire a tech.
Great! Please let us know the result when it is done, where are you going to install the topaz transformer and what will be connected to it?