The RST/D Automatic Restart Timer Relay, developed by Borna Electronics, is a reliable solution for automatically restarting stop/start control circuits after a power interruption. The relay is specifically designed for applications where equipment must automatically resume operation when power is restored.
Users can adjust the restart delay from 15 to 300 seconds after power restoration. Once the preset time has elapsed, the relay simulates a START push-button command by activating its output for one second, enabling automatic equipment restart without operator intervention.
Features
- Timing operation initiated upon power restoration
- Automatic replacement for START push-button operation after power outages
- Adjustable restart delay from 15 to 300 seconds
- One-second output pulse for automatic start command
- Front-panel ON/OFF switch
- Audible melody indication during timing operation
- Two LED indicators: PWR (Power Supply Status) and START (Restart Command Status)
Technical Specifications
| Parameter | Specification |
| Supply Voltage | 220 VAC ±15% (other voltages available upon request) |
| Network Frequency | 50 Hz ±5% |
| Internal Power Consumption | Approx. 2 W |
| Start Pulse Duration | 1 second |
| Adjustable Restart Delay | 15 to 300 seconds |
| 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 Relay | One C/O (SPDT) contact, 6 A |
Applications
• Motor control circuits
• Pump control systems
• Industrial automation systems
• Stop/Start control circuits
• Automatic equipment restart applications
• Power restoration recovery systems