This voltage and current display relay is a smart protection device designed for single-phase AC networks. It continuously monitors the voltage and current of the main line and displays real-time values on a digital indicator. When voltage or current exceeds user-defined thresholds, the electromagnetic relay disconnects the load to prevent damage.
Users can configure overvoltage, undervoltage, and overcurrent protection values, as well as trip and recovery delays, using onboard buttons. All settings are stored in non-volatile memory, ensuring retention after power loss. The device is compatible with aluminum and copper wiring and is mounted on a 35mm DIN rail.
Ideal for residential, commercial, and industrial applications, it protects equipment from electrical anomalies and supports voltmeter mode for passive monitoring.
TECHNICAL DETAILS:
| Specification | Value |
| Rated Working Voltage | AC (single-phase) |
| Rated Frequency | 50/60Hz |
| Rated Working Current | 40A or 63A |
| Overvoltage Protection Range | AC230V–AC300V |
| Undervoltage Protection Range | AC140V–AC220V |
| Voltage Trip Delay | 1–400 seconds |
| Overcurrent Protection Range | 1–40A or 1–63A |
| Overcurrent Trip Delay | 1–30 seconds |
| Recovery Delay (Start Delay) | 1–400 seconds |
| Output Contact | 1NO |
| Power Consumption | ≤1.5W |
| Rated Insulation Voltage | 400V |
| Pollution Degree | 2 (internal), 3 (external) |
| Protection Degree | IP20 |
| Electrical Life | 100,000 operations |
| Mechanical Life | 1,000,000 operations |
| Operating Temperature | –5°C to +40°C |
| Storage Temperature | –40°C to +55°C |
| Relative Humidity | ≤50% @ 40°C (non-condensing) |
| Altitude | ≤2000m |
| Installation | 35mm DIN rail |
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