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General| Product Type Designation | REX 521 |
|---|---|
| Current Input | 1 A or 5 A |
| Rated Control Supply Voltage (Us) | 24-250 V AC/DC |
| Communication Protocols | IEC 61850, Modbus |
| Protection functions | Overcurrent, Earth fault, Thermal overload, Under/over voltage, Frequency protection |
| Power supply | 24-250 V DC, 24-265 V AC |
| Enclosure | IP20 |
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