✅ CHINT 280043 – NJB1-X1 AC200V~AC500V Phase Protection Relay Phase sequence and phase failure protection relay rated for 630A, 50kA breaking capacity. Operates on AC 200–500V circuits, ideal for high-load industrial motor applications. 🔹 Description (English): The CHINT 280043 – NJB1-X1 is a robust three-phase sequence and phase failure protection relay designed for use in electrical control circuits operating at AC voltages between 200V and 500V, 50Hz. It safeguards systems against incorrect phase sequence and phase loss, making it ideal for heavy-duty industrial installations. While it cannot detect phase failure under motor load, this relay is highly effective in protecting control and power systems, especially where reliability and operational safety are critical. With a rated current of 630A and a 50kA breaking capacity, the relay conforms to IEC/EN 60947-4-1 standards and carries CE certification. 🔹 Key Features: • Phase sequence and phase failure detection • Rated voltage: AC 200V–500V, 50Hz • High-current capacity: 630A • Breaking capacity: 50kA • Designed for 3-phase power systems • Not suitable for motor load phase failure detection • CE certified and compliant with IEC/EN 60947-4-1 • Reliable for demanding industrial control environments 🔹 Technical Specifications (English): Parameter Value Model NJB1-X1 Part Number CHINT 280043 Rated Current 630A Breaking Capacity 50kA Voltage Range AC 200V–500V (3-phase) Frequency 50Hz Function Phase sequence & failure Application Limitation Not for motor load phase failure Standard Compliance IEC/EN 60947-4-1 Certification CE