The SVR Single-Phase Voltage Protection Relay, developed by Borna Electronics, is designed to protect single-phase electrical equipment against overvoltage, undervoltage, phase-loss conditions, and repeated power interruptions. The relay is particularly suitable for protecting contactor coils and high-power loads controlled through contactors.
Featuring an adjustable reconnection delay and comprehensive status indication, the SVR relay helps prevent equipment damage caused by abnormal voltage conditions and unstable power supply networks.
Features
- Protection of single-phase loads against overvoltage conditions
- Protection of single-phase loads against undervoltage conditions
- Protection against phase-loss conditions
- Protection against damage caused by repetitive power interruptions and restorations
- Contactor coil protection against voltage-related faults
- Suitable for high-power loads when used with contactors
- Adjustable reconnection delay from 1 to 3 minutes
- One C/O (SPDT) output relay contact
- Four LED indicators for power supply status, output status, timing operation, and voltage fault indication
Technical Specifications
| Parameter | Specification |
| Supply Voltage | 170–260 VAC |
| Network Frequency | 50 Hz ±5% |
| Internal Power Consumption | Approx. 3 W |
| Voltage Fault Threshold | Below 175 VAC or above 255 VAC |
| Protection Degree | IP20 according to IEC 60529 |
| Operating Temperature | -20°C to +60°C |
| Relative Humidity | 15% to 85% |
| Mounting Method | DIN Rail according to IEC 60715 |
| Output Relay | One C/O (SPDT) contact, 6 A |
Applications
- Contactor coil protection
- Single-phase motors and loads
- Industrial control panels
- Building electrical systems
- HVAC equipment
- Protection of sensitive single-phase equipment
The SVR Voltage Protection Relay provides reliable protection against abnormal voltage conditions and unstable power networks, helping to extend equipment life and improve operational reliability.