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| Model number | RSTC ¦ DHC2X ¦ DHC2X-T ¦ DHC2X-N ¦ RSTB |
| Phase failure protection | √ |
| Phase wrong protection | √ |
| Overvoltage protection | Χ ¦ Voltage trimming |
| Supply voltage | 380VAC 50/60Hz |
| Model number | XJ3-G ¦ XJ3-S ¦ XJ3-D |
| Phase failure protection | √ |
| Phase wrong protection | √ |
| Overvoltage protection | Χ ¦ 380V-460V 1.5s-4s(Adjustable) |
| Supply voltage | 380VAC 50Hz |
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