GK-04N – Phase Failure & Voltage Monitoring Relay

Operating Voltage: 3 × 380V AC + Neutral Frequency: 50/60 Hz
Mounting: DIN rail or vertical panel mount Display: LED indicators

Key Specifications:

• High Voltage Threshold (U>): Adjustable 400–460V
• Low Voltage Threshold (U<): Adjustable 230–360V
• Delay Time (t): Adjustable 0.1–10 seconds
• Power Consumption: <6VA
• Contact Rating: 5A / 250V AC (resistive load)
• Connection Type: Terminal block
• Cable Size: Up to 2.5 mm²
• Operating Temperature: -20°C to +55°C
• Weight: Max. 210g
• Indicators:

• Power LED
• Relay status LED
• High/Low voltage LEDs
• Phase presence LEDs (3)

Features:

• Monitors phase failure, overvoltage, and undervoltage
• Adjustable voltage thresholds and delay time
• Relay output switches based on voltage conditions
• Compact design for easy integration
• Suitable for motors, elevators, HVAC, and control panels

Applications:

• Industrial automation and motor protection
• Backup/emergency power switching
• HVAC and building management systems
• Electrical panels requiring voltage monitoring