3 Phase 380V Adjustable Over Under Voltage Current Limit Protection Monitor Relays Protector Voltmeter Ammeter Phase Sequence

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• 3-Phase Adjustable Over/Under Voltage & Current Protection Relay
• Max Load:
  • 63A (With or Without Neutral)
  • 100A (With or Without Neutral)
• Voltage Supply:
  • 3x120V+N: Displays each phase at 230V.
  • 3x230V+N: Displays each phase at 230V.
  • 3-Phase 380V (Without Neutral): L1, L2, L3 all display 380V.
• Installation: 35mm DIN Rail

Key Protection Features:

• Over-voltage Protection:
  • Protection Range: 230V–300V (Single Phase) / 395V–520V (Three Phase).
  • Recovery Voltage: 220V–295V (Single Phase) / 390V–515V (Three Phase).
  • Action Time: 0.1s–30s.
  • Recovery Delay Time: 1s–500s.
• Under-voltage Protection:
  • Protection Range: 140V–210V (Single Phase) / 240V–365V (Three Phase).
  • Recovery Voltage: 145V–215V (Single Phase) / 245V–370V (Three Phase).
  • Action Time: 0.1s–30s.
  • Recovery Delay Time: 1s–500s.
• Over-current Protection:
  • Adjustment Range: 1A–63A / 1A–100A / OFF.
  • Recovery Delay Time: 1s–500s.
  • Action Time: 0.1s–30s.
  • Continuous Over-current Times: 1–20 / OFF.
• Phase Sequence Protection: ON/OFF.
• Three-Phase Unbalance Protection:
  • Unbalance Value: 20V–99V.
  • Recovery Value: 15V–94V.
• Power-on Delay Time: 1s–500s.

Monitoring Features:

• Voltage Display: Real-time voltage monitoring for all phases (L1, L2, L3).
• Current Display: Real-time current monitoring for all phases.
• Voltage Calibration: ±9.5% adjustable for precise voltage detection.
• Current Calibration: ±9.5% adjustable for accurate current measurement.

Ideal For:

• Protecting three-phase industrial equipment such as motors, pumps, air conditioners, and other high-power devices.
• Ensuring safe and stable operation of three-phase electrical systems during voltage fluctuations, phase imbalances, and current surges.

Important Notes:

• Initial Setup: Ensure proper wiring and configuration before use. Adjust thresholds and delay times according to system requirements.
• Automatic Recovery: The device will automatically restore power after stabilization, with configurable recovery delay times.

Applications:

• Residential, commercial, and industrial environments where three-phase voltage monitoring and protection are essential.
• Applications in HVAC systems, elevators, cranes, mining equipment, and conveyor systems.