The GIC MI91BJ provides under and over frequency monitoring with rapid fixed-delay protection and dual output relays for split control functionality.
🔧 Technical Highlights:
- Supply Voltage: 230 VAC
- Frequency Monitoring Range: 40 Hz to 70 Hz
- Input Signal Range: 15–500 V
- Under Frequency Threshold: Adjustable (-1 to -10 Hz)
- Over Frequency Threshold: Adjustable (+1 to +10 Hz)
- ON Delay: Fixed 500 ms
- OFF Delay: Fixed 150 ms
- Output: 2 x C/O relays
- Mounting: DIN Rail
✅ Benefits:
- Dual setpoint design enables fast trip on frequency drift
- Supports wide range of waveform types
- Perfect for protecting generators and critical AC loads
🚀 Applications:
- Generator panels
- Grid synchronisation and transfer systems
- High-reliability control environments
MI91BJ enhances grid stability and load safety in frequency-variable environments.