✅ CHINT 697028 – G NJYB3-9 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 697028 – G NJYB3-9 AC220V is a multifunctional 3-phase protection relay built to monitor and protect low-voltage systems using a 3P4W (three-phase four-wire) configuration. It provides reliable detection of abnormal voltage conditions including overvoltage, undervoltage, phase failure, reverse phase sequence, and unbalanced voltage. Ideal for lighting systems, small motor control circuits, and power panels operating at AC220V, this relay enhances electrical safety in residential, commercial, and light industrial installations. Fully compliant with IEC/EN 60947-4-1 and CE certified, with optional support for PTC thermal protection. 🔹 Key Features: • Rated Voltage: AC220V • System Type: 3P4W • Function Code: 9 • Protection: Overvoltage, Undervoltage, Phase failure, Phase sequence, Voltage unbalance • Optional PTC thermal protection • Suitable for low-voltage control panels and lighting protection • CE certified • Complies with IEC/EN 60947-4-1 🔹 Technical Specifications (English): Parameter Value Model G NJYB3-9 AC220V Part Number CHINT 697028 Rated Voltage AC220V System Type 3P4W Function Code 9 PTC Temperature Option Optional (P) Protection Functions Overvoltage, Undervoltage, Phase failure, Phase sequence, Voltage unbalance Compliance IEC/EN 60947-4-1 Certification CE