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Need help regarding isolator wiring configuration.

Hello everyone. I just bought and received a Topaz Ultra Isolator. Am I wrong in thinking so or is it already wired for balanced power? It looks odd in both the configuration and using both brown and red wiring jackets (which from what I understand usually are both used for hot wires), and the jumper from the third terminal to the second is odd to me. I'm not really educated enough in this matter to know what's going on here and there's not really a detailed wiring configuration like one seen on other models, only a single picture on the side that I've included.

The unit's input is a 6-20r input plug which needs to be replaced with a 20 amp iec inlet (due to the plugs being reversed on the 6-20r I have no idea if the hot and neutral wiring would be reversed as well compared to a usual 20 amp plug, but I'm assuming not?), and I wish to replace the outlets as well, but I want to make sure of everything before tackling this.

http://https//i.ibb.co/dLcQvbW/DSC06471.jpg

http://https//i.ibb.co/Yfjz3RT/DSC06472.jpg

http://https//i.ibb.co/nP4Yk7X/DSC06473.jpg

http://https//i.ibb.co/QXt2Jv2/DSC06474.jpg

http://https//i.ibb.co/rv4YKsf/DSC06475.jpg
vze2r8xz

Showing 4 responses by jea48

jea48
4,313 posts
 
I couldn’t get any of your links to work.

As for the 6-20R. The number 6 signifies 250 volt.
Next number is ampere rating, 20 amps.   
R = Receptacle.

I think you might mean 6-20P, inlet plug.
Example:
https://www.westwayelectricsupply.com/wiring-devices/general-purpose/plugs-connectors-inlets-outlets....

jea48
4,313 posts
 
Assuming the OP is correct, the transformer primary winding is fed by 240V. We don’t know if the primary is designed as a dual voltage 120/240V. (Two windings)


The unit’s input is a 6-20r input plug which needs to be replaced with a 20 amp iec inlet (due to the plugs being reversed on the 6-20r I have no idea if the hot and neutral wiring would be reversed as well compared to a usual 20 amp plug, but I’m assuming not?)

No matter how hard you push you will not make a 125V 20 amp 5-20R female cord cap fit a 250V 6-20P panel mount power inlet.
No way in hell.

.

jea48
4,313 posts
 
https://imgur.com/a/pFAgCYt
It has a single primary winding and a single secondary winding. (It is not a balanced power output system)


It appears to be wired as an "Isolated Power System". In English the secondary output of the transformer is floating above ground. Both leads, legs, are Hot ungrounded conductors. Neither Hot will have a reference to ground.

Primary voltage input? There should be data printed somewhere on the transformer.
Input voltage
Output voltage
Va rating



https://imgur.com/a/kdMt8Rp
The panel mount inlet looks the same to me.

https://www.westwayelectricsupply.com/wiring-devices/general-purpose/plugs-connectors-inlets-outlets...


jea48
4,313 posts
 
@ vze2r8xz

Because of the 6-20P power inlet my guess is the primary input voltage is 220V
or 240V.
Secondary output voltage is 115V or 120V.

Connecting the primary to 120V will only give you around 60V on the output.
Make sure you check the output voltage with a voltmeter before connecting anything to it.


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