✅ CHINT 697031 – G NJYB3-12 AC220V 3-phase protection relay for overvoltage, undervoltage, phase failure, phase sequence, and voltage unbalance monitoring. Designed for AC220V three-phase four-wire (3P4W) systems with CE certification. 🔹 Description (English): The CHINT 697031 – G NJYB3-12 AC220V is a highly reliable 3-phase protection relay built for AC220V four-wire (3P4W) systems. It offers comprehensive protection by continuously monitoring all critical voltage conditions, such as overvoltage, undervoltage, phase failure, incorrect phase sequence, and voltage unbalance. Ideal for low-voltage panels, HVAC units, and industrial control boards, this relay enhances system safety and operational continuity. Optional PTC thermal protection is available for added equipment safeguarding. It complies with IEC/EN 60947-4-1 standards and is CE certified. 🔹 Key Features: • Rated Voltage: AC220V • System Type: 3P4W • Function Code: 12 • Protection: Overvoltage, Undervoltage, Phase failure, Phase sequence, Voltage unbalance • Optional PTC thermal protection • CE certified • Complies with IEC/EN 60947-4-1 🔹 Technical Specifications (English): Parameter Value Model G NJYB3-12 AC220V Part Number CHINT 697031 Rated Voltage AC220V System Type 3P4W Function Code 12 PTC Temperature Option Optional (P) Protection Functions Overvoltage, Undervoltage, Phase failure, Phase sequence, Voltage unbalance Compliance IEC/EN 60947-4-1 Certification CE