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PHc ISO-300 300 Watts AC Isolation Transformer with Pass-Through Grounding

3.6 3.6 out of 5 stars 14 ratings
Brand PHC Enterprise
UPC 857549003388
Manufacturer PHC Enterprise

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Customer reviews

3.6 out of 5 stars
14 global ratings
NOT EARTH GROUND ISOLATED
4 out of 5 stars
NOT EARTH GROUND ISOLATED
Be warned that the input ground is NOT isolated from the output grounds despite what is suggested in the questions and answers above. Considering 3 people seemed to suggest that it was via 2 questions I am not sure if the manufacturer recently changed the design or not. But the unit I received had the input and output grounds tied together. This is common for isolation transformers and a very easy fix but no good for electronic test benches.I cant comment on the performance or durability yet. I suspect it will be fine.
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Top reviews from the United States

John D. Beatty
5.0 out of 5 stars Did exactly what it was supposed to do
Reviewed in the United States on July 22, 2016
Verified Purchase
As products go, isolation transformers don;t get a lot of press. But this one holds up my whole office from the surges of the A/C coming on. All that's needed.
One person found this helpful
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Justin
4.0 out of 5 stars NOT EARTH GROUND ISOLATED
Reviewed in the United States on October 18, 2015
Verified Purchase
Be warned that the input ground is NOT isolated from the output grounds despite what is suggested in the questions and answers above. Considering 3 people seemed to suggest that it was via 2 questions I am not sure if the manufacturer recently changed the design or not. But the unit I received had the input and output grounds tied together. This is common for isolation transformers and a very easy fix but no good for electronic test benches.

I cant comment on the performance or durability yet. I suspect it will be fine.
Customer image
Justin
4.0 out of 5 stars NOT EARTH GROUND ISOLATED
Reviewed in the United States on October 18, 2015
Be warned that the input ground is NOT isolated from the output grounds despite what is suggested in the questions and answers above. Considering 3 people seemed to suggest that it was via 2 questions I am not sure if the manufacturer recently changed the design or not. But the unit I received had the input and output grounds tied together. This is common for isolation transformers and a very easy fix but no good for electronic test benches.

I cant comment on the performance or durability yet. I suspect it will be fine.
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18 people found this helpful
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DRT
1.0 out of 5 stars Great door stop
Reviewed in the United States on August 28, 2019
Verified Purchase
Never worked. Unfortunately I didn't get around to pulling out my rack to rearrange things til it was too late for a return. I had planned on isolating my dig gear from the hollow state and imagine my surprise after pulling out a rack topped with a large flat screen, rearranging all my power cords and then finding out my new toy was best used to anchor my river floating tube because it isolated everything including the ac.
While this might be a bargain be sure and test it right out of the box. Don't wait like I did and not be able to get it replaced. This is what comes from procrastination.
Thatch
One person found this helpful
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EH - Minnesota
3.0 out of 5 stars I am not disappointed by this product given the price point
Reviewed in the United States on January 13, 2017
Verified Purchase
Arrived with the transformer loose inside it. I opened it up and tightened it back down. Nothing spectacular inside it, definitely not top quality, but this wasn't a high priced item either. Surprisingly, it came with a ground isolation plug adapter which will come in handy. I am not disappointed by this product given the price point.
4 people found this helpful
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CASSADY ROOP
5.0 out of 5 stars Five Stars
Reviewed in the United States on September 28, 2017
Verified Purchase
This has made my workbench a safer place.
One person found this helpful
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Victor Ansart
4.0 out of 5 stars Connections inside the transformer look pretty solid. My only qualm is that there is ...
Reviewed in the United States on November 7, 2016
Verified Purchase
This transformer was tested to make sure that the neutral and hot outputs were completely isolated from the neutral and hot inputs as should be the case in an instrumentation/testing isolation transformer. The output ground is connected to the output ground as should be the case in this type of isolation transformer. Connections inside the transformer look pretty solid. My only qualm is that there is no shrink wrap insulation on the exposed tabs.
5 people found this helpful
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Gregory Harding
1.0 out of 5 stars Received a dead used unit.
Reviewed in the United States on August 23, 2020
Verified Purchase
The unit I received did not work. It was scratched and dented. I shipped it back and purchased another brand.
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Robert
4.0 out of 5 stars Came broken, but easily fixed.
Reviewed in the United States on December 27, 2016
Verified Purchase
Arrived not working. Opened it up and noticed the wire from transformer to output plug inside was broken at the plug. Soldered it back on easily enough. This was easier than sending it back. Came with adapter to disconnect ground which was an unexpected bonus.
4 people found this helpful
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