GKRC-02 – 3-Phase Voltage Monitoring Relay

Operating Voltage: 3 × 230V AC (±10%) Frequency: 50/60 Hz

Mounting: DIN rail (PK22 enclosure) Output Contact: 1 C/O, 8A, 2000 VA

Key Functions:

• Overvoltage Protection: Adjustable from 1.05–1.30 × Un
• Undervoltage Protection: Adjustable from 0.70–0.95 × Un
• Phase Failure Detection
• Phase Sequence Protection
• Adjustable Delay Time: 0.1–10 seconds
• Instant Trip:

• Overvoltage > 1.5 × Un
• Undervoltage < 0.5 × Un
• Trip time < 500 ms

Indicators:

• Power ON LED
• Overvoltage (U>) and Undervoltage (U<) LEDs
• Relay status LED (OUT)

Mechanical & Environmental:

• Dimensions: Compact PK22 housing
• Operating Temp: -5°C to +55°C
• Protection Class: IP20 (terminals), IP40 (front panel)
• Standards: IEC 60255-3, IEC 60255-6, IEC 60529

Applications:

• Motor and compressor protection
• HVAC and industrial cooling systems
• Electrical panels and automation systems
• Telecom and railway infrastructure