1 PCS used ABB REU523B 409BAA Combined Overvoltage and Undervoltage Relay #LYQ007
1 PCS used ABB REU523B 409BAA Combined Overvoltage and Undervoltage Relay #LYQ007
| Parameter | Value |
|---|---|
| Product Type | Combined Overvoltage and Undervoltage Relay |
| Model | REU523B 409BAA |
| Article Number | 1MRS091409-BAA |
| Revision | C |
| Weight | Approx. 2.270 kg |
| Rated Frequency | 50 / 60 Hz |
| Measuring Voltage Range | 0...2 × Un (phase-to-phase voltages U12, U23, U31) |
| Measuring Accuracy | ±1.5% (at fn ±5 Hz, 0.20...2.00 × Un) |
| Input Burden | < 0.1 VA (typical 0.03 VA) at Un |
| Input Impedance | > 4.7 MΩ |
| Auxiliary Voltage (DC) | 24 / 48 / 60 / 110 / 220 V DC |
| Auxiliary Voltage Range | 18...265 V DC |
| Auxiliary Current Drain | ~2...25 mA |
| Power Consumption | < 0.8 W |
| Output Contacts (Power Outputs PO1, PO2) | |
| - Rated Voltage | 250 V AC/DC |
| - Continuous Current | 5 A |
| - Short-time Withstand (3s) | 15 A |
| - Short-time Withstand (0.5s) | 30 A |
| - Minimum Load | 100 mA at 24 V AC/DC |
| Output Contacts (Signal Outputs SO1, SO2) | |
| - Rated Voltage | 250 V AC/DC |
| - Continuous Current | 5 A |
| - Short-time Withstand (3s) | 8 A |
| - Short-time Withstand (0.5s) | 10 A |
| - Minimum Load | 100 mA at 24 V AC/DC |
| Communication | |
| - Interface | Optical RS-232, SPA bus / IEC 60870-5-103 |
| - Baud Rate | 4.8 or 9.6 kbps |
| Dimensions | |
| - Width (Frame) | 111.4 mm |
| - Height (Frame, 6U) | 265.9 mm |
| - Depth | 235 mm (245.1 mm with rear cover) |
| Protection Functions | |
| - Overvoltage | High-set (U>>) and Low-set (U>) stages, Definite-time / IDMT |
| - Undervoltage | High-set (U<<) and Low-set (U<) stages, Definite-time / IDMT |
| - Positive-Sequence Voltage | Configurable for high-set undervoltage stage |
| Self-Supervision | Continuous internal fault monitoring (IRF relay) |
| HMI | Alphanumeric LCD display with indicators |
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