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| Model number | RSTC ¦ DHC2X ¦ DHC2X-T ¦ DHC2X-N ¦ RSTB |
| Phase failure protection | √ |
| Phase sequence protection | √ |
| Overvoltage protection | Χ ¦ Voltage trimming |
| Supply voltage | 380VAC 50/60Hz |
| Model number | XJ3-G ¦ XJ3-S ¦ XJ3-D |
| Phase failure protection | √ |
| Phase sequence protection | √ |
| Overvoltage protection | Χ ¦ 380V-460V 1.5s-4s(Adjustable) |
| Supply voltage | 380VAC 50Hz |
| Model number | NJB1-X ¦ NJB1-X1 |
| Phase failure protection | √ |
| Phase sequence protection | √ |
| Supply voltage | NJB1-X: 380-348VAC 50Hz; NJB1-X1: 200-500VAC 50Hz |
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