ALP 220-EF Earth fault overcurrent relay
The ALP220-EF earth fault overcurrent relay is designed for low-voltage applications (up to 380 V) where the system's earth fault current needs to be monitored and protective measures taken when the earth fault current exceeds the permissible limit. This relay features an LCD display, Modbus RTU communication capability, system current measurement, three-phase overcurrent protection, earth fault overcurrent protection, residual current measurement, residual current overcurrent protection, fault logging, and event logging.
Product info
Technical data
| Power supply | Voltage range | AC/DC 85～265V | |
| Entrance | Current specifications | ABCN (4-channel): 1A/5A | 10 % Ie～1000 % Ie ±2 % |
| Fault current specification | 30 mA-1000 mA | ±2% | |
| frequency | 45 Hz–65 Hz | ±0.2 Hz | |
| output | Initial method | Dual-channel, single-pole, double-throw switch | |
| Output power | Ohmic load, AC 250 V 5 A / DC 30 V 5 A | ||
| Installation and usage environment | Relative humidity | ≤ 95 % rF, no condensation | |
| operating temperatur | -20℃~+70℃ | ||
| Storage temperature | -40℃~+70℃ | ||
| Installation type | Built-in installation: 88×88 (mm) | ||
| Protection types | Front panel: IP54; Connections: IP20 | ||
Product display
Video
