✅ CHINT 310007 – NJB1-X1 AC200~500V Phase Protection Relay Phase sequence and phase failure protection relay rated for 400A, 70kA breaking capacity. Operates on AC 200–500V circuits, suitable for motor phase control applications. 🔹 Description (English): The CHINT 310007 – NJB1-X1 is a three-phase sequence and phase failure protection relay designed to monitor AC power supply systems within a voltage range of 200V to 500V, operating at 50Hz. It is ideal for use in control circuits that require protection against incorrect phase sequence or missing phase conditions, ensuring system safety and equipment longevity. Though not suitable for monitoring motor phase failure directly, this relay provides dependable protection in control panels and power distribution setups. Rated for 400A with a 70kA breaking capacity, the unit complies with IEC/EN 60947-4-1 standards and is CE certified. 🔹 Key Features: • Phase sequence and phase failure monitoring • Rated voltage: AC 200V–500V, 50Hz • Control relay for 3-phase systems • Breaking capacity: 70kA • Rated current: 400A • Compliant with IEC/EN 60947-4-1 • CE certified • Not suitable for motor load phase failure detection 🔹 Technical Specifications (English): Parameter Value Model NJB1-X1 Part Number CHINT 310007 Rated Current 400A Breaking Capacity 70kA 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