Voltage monitoring relay for the protection of one-phase and three-phase networks against power fluctuations and incorrect phase sequence. Faulty alarm responses due to voltage spikes are prevented by a switching delay (0.1 to 10s). The relay switches immediately if the voltage of a phase exceeds or falls below the nominal voltage by more than 50%.
- 230V AC, 400V AC ± 30% operating voltage
- Undervoltage setting range 300 to 400V AC
- Overvoltage setting range 400 to 500V AC
- Overvoltage protection
- Undervoltage protection
- Monitoring between two phase-failure protection limits
- Phase sequence protection
- Switch-off delay
- 1 8A relay output
- Contact type: SPDT-CO (8A)
- Dimensions: (W x H x D) 35 x 90 x 58 mm
- Hysteresis: 3 %
- Operating voltage: 230 V/AC/ (±30 %) 400V AC
- Overvoltage category: 3
- Product Specifications: Undervoltage setting range: 300 – 400V AC
- Overvoltage setting range: 400 – 500V AC
- Immediate switch period: 500ms
- Mains power supply: 1-phase, 2-conductors or 3-phase, 4-conductors
- RoHS compliant: yes
- Specification: Voltage monitoring relay
- Temperature range: -5°C – +55°C
- Type: GKRC-20F
| Type |
Voltage monitoring relay |
| Contact Configuration |
SPDT-CO |
| Dimensions |
35 x 90 x 58mm |
| Operating Voltage (AC) |
230 to 400V |
| Operating Voltage (DC) |
N/A |
| Output Current |
8A |
| Temperature Range |
-5 to +55°C |
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