✅ CHINT 697030 – G NJYB3-11 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 697030 – G NJYB3-11 AC220V is a smart protection relay engineered for 3-phase 4-wire (3P4W) systems operating at AC220V. It continuously monitors voltage parameters to protect systems against faults such as overvoltage, undervoltage, phase loss, reverse phase sequence, and unbalanced voltage. Suitable for low-voltage distribution boards, automation systems, and HVAC applications, this relay helps maintain system stability and avoid equipment failure. It also offers optional PTC thermal protection and meets the IEC/EN 60947-4-1 standard with CE approval. 🔹 Key Features: • Rated Voltage: AC220V • System Type: 3P4W • Function Code: 11 • 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 NJYB3-11 AC220V Part Number CHINT 697030 Rated Voltage AC220V System Type 3P4W Function Code 11 PTC Temperature Option Optional (P) Protection Functions Overvoltage, Undervoltage, Phase failure, Phase sequence, Voltage unbalance Compliance IEC/EN 60947-4-1 Certification CE