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Frequently asked questions
| Headline: | EFS-9252 or EFS-9253 | | Question: | What is the difference between EFS-9252 and EFS-9253? |
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2 or 3 phased powercontroller
The difference between EFS-9252 and 9253 is the number of thyrister in the unit. 9253 has 3 thyristers - and the 9252 only 2. 9253 is only used if the heat source is star connected and star point is connected to neutral.
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