The ABB Unitrol UNS 3020a-Z, Var.1 is a microprocessor-based earth fault relay that provides protection for electrical equipment against ground faults. It is designed for use in medium-voltage (MV) and high-voltage (HV) applications. The relay has a wide range of settings and features, making it a versatile and reliable choice for a variety of applications.
Features
- Microprocessor-based design for high accuracy and reliability
- Wide range of settings and features
- Versatile and reliable choice for a variety of applications
- Protection against ground faults
Applications
- MV and HV applications
- Industrial plants
- Power distribution systems
- Renewable energy installations
Specifications
- Voltage range: 100-600 V AC
- Current range: 1-100 A AC
- Accuracy: ±1%
- Operating temperature range: -20 to 60 °C
- Storage temperature range: -40 to 85 °C
- Dimensions: 200 x 100 x 50 mm
- Weight: 1 kg
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