Three-Phase Voltage Monitoring Relay
This three-phase voltage monitoring relay protects electrical equipment from voltage imbalances, phase loss, and over/under voltage conditions. The relay provides a reliable indication of voltage status via LED indicators and features adjustable voltage thresholds and time delays.



Technical Specifications
Product Overview
Professional Three-Phase Monitoring
The TH-210 is a robust three-phase voltage monitoring relay engineered to safeguard critical electrical equipment. It provides continuous monitoring to detect phase loss, voltage imbalances, and over/under voltage conditions. With adjustable thresholds and time delays, it effectively minimizes nuisance tripping while ensuring reliable system performance in industrial and motor protection environments.
Technical Specifications
Status Indicators
- L1 Phase LED
- L2 Phase LED
- L3 Phase LED
Terminal Configuration
| Terminal | Function |
|---|---|
| N | Neutral Connection |
| 12, 11, 14 | Relay Output Contacts |
- Protection Functions
- Phase Loss ProtectionVoltage Imbalance MonitoringOver-Voltage ProtectionUnder-Voltage Protection
- Mounting Style
- DIN Rail
Applications
Common Industrial Applications
- Motor Protection
- Generator Control Systems
- Industrial Automation



