The SCR/D 32A Single-Phase Voltage Protection Relay, developed by Borna Electronics, is specifically designed for the protection of high-current single-phase loads. With its built-in 32 A switching capability, the relay eliminates the need for an external contactor, simplifying installation and reducing system costs.
The SCR/D relay provides reliable protection against overvoltage, undervoltage, phase-loss conditions, and repetitive power interruptions. Its adjustable reconnection delay and high-power output capacity make it an ideal solution for residential, commercial, and industrial single-phase applications.
Features
- Protection of single-phase loads against overvoltage conditions
- Protection of single-phase loads against undervoltage conditions
- Protection against phase-loss conditions
- Protection against repetitive power interruption and restoration stresses
- Suitable for residential mains input, single-phase pumps, air conditioners, and similar loads
- No external contactor required
- Suitable for installation inside distribution boards and meter panels
- Adjustable reconnection delay from 1 to 3 minutes
- High-power output capability up to 6 kW
- Four LED indicators for output status, timing operation, overvoltage, and undervoltage conditions
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 and Flush Mounted according to IEC 60715 |
| Output Current | 32 A |
Applications
- Residential main power protection
- Single-phase water pumps
- Air conditioning systems
- Commercial electrical installations
- High-current single-phase loads
- Distribution boards and meter panels
The SCR/D 32A Voltage Protection Relay combines voltage protection and high-current switching capability in a single compact device, providing a reliable and cost-effective solution for protecting high-power single-phase equipment.