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Model
AM3SE protection relay
Application
MV line, transformer, PT
Supply
AC/DC 110 / 220 V
Current input
AC 5 A / 1 A
Accuracy
Class 0.5S
Diagonal
IP20 enclosure
| General | Product type | Medium voltage protection device |
| Application | Line, power transformer and PT protection | |
| Supply | Supply voltage | AC/DC 110 V / 220 V, DC 48 V / 24 V |
| Power consumption | ≤10 W (DC) | |
| Voltage input | Rated PT voltage | AC 100 V |
| Measuring range | 0.1–120 V | |
| Accuracy | Class 0.5S | |
| Burden | ≤0.5 VA | |
| Current input | Rated CT current | AC 5 A / 1 A |
| Thermal withstand | 2 In continuous, 40 In for 1 s | |
| Dynamic withstand | 15 × In | |
| Frequency | Rated frequency | 50 / 60 Hz, ±0.1 Hz |
| Binary input | Switching thresholds | 70% / 55% of rated voltage |
| Consumption | ≤1 W per input |
| Protection | Overcurrent and earth fault protection | ■ |
| Transformer and line protection | ■ | |
| PT monitoring and supervision | ■ | |
| Measurement | Current, voltage, power measurement | ■ |
| Fault recording and event log | ■ | |
| Communication | RS485 Modbus-RTU | ■ |
| Signalling | Binary inputs and relay outputs | ■ |
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