The DOT/D Microprocessor-Based On-Delay Timer Relay, developed by Borna Electronics, is designed to provide precise delayed switching in industrial control and automation systems. On-delay timers are among the most widely used devices in industrial control panels and are commonly applied in motor control circuits, star-delta starters, and sequential automation processes.
By utilizing advanced microprocessor technology, the DOT/D offers significantly improved timing accuracy compared to conventional analog timers. Users can easily select seconds or minutes timing modes and accurately adjust the required delay period according to application requirements
Features
- On-delay timing function initiated upon power application
- Microprocessor-based timing for enhanced accuracy
- Time base selection switch for seconds or minutes
- Adjustable ON-delay setting
- Timing ranges: 0.5 to 60 seconds and 0.5 to 60 minutes
- Suitable for star-delta motor control circuits
- Two LED indicators: PWR (Power Supply Status) and OUT (Output 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 |
| Timing Range | 0.5–60 seconds, 0.5–60 minutes |
| 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 |
| Insulation Class | Class II |
Applications
- Industrial control panels
- Star-delta motor starters
- Motor control systems
- Industrial automation systems
- Sequential machine control
General-purpose delayed switching applications