✅ CHINT 268412 – NR2-630 Thermal Overload Relay, 250~400A Heavy-duty 630A-frame thermal relay adjustable from 250 to 400A. Features 1NO + 1NC auxiliary contacts and temperature compensation, ideal for large industrial and mining equipment. 🔹 Description (English): The CHINT 268412 – NR2-630 is a heavy-duty thermal overload relay engineered to protect motors operating within the 250 to 400A current range. Built on a 630A frame, it offers reliable and long-lasting protection for large motors in high-load industrial systems. It is fully compatible with CHINT NC7-205 through NC7-620 contactors. This relay features 1NO + 1NC auxiliary contacts, allowing it to integrate into protection schemes such as overload alarms, shutdown sequences, or feedback systems. It supports both manual and automatic reset, and incorporates temperature compensation to ensure consistent tripping performance under extreme ambient conditions. Certified to IEC/EN 60947-4-1 and 60947-5-1, the NR2-630 is a robust choice for use in mining machinery, cement plants, steel mills, and heavy-duty HVAC systems. 🔹 Key Features: • Adjustable current range: 250~400A • Frame size: 630A • Auxiliary contacts: 1NO + 1NC • Manual and automatic reset modes • Temperature compensation for thermal stability • Compatible with NC7-205 ~ NC7-620 contactors • Rugged design for harsh industrial environments • Conforms to IEC/EN 60947 standards 🔹 Technical Specifications (English): Parameter Value Model NR2-630 Part Number CHINT 268412 Current Range 250~400A Frame Size 630A Compatible Contactors NC7-205 ~ NC7-620 Auxiliary Contacts 1NO + 1NC Reset Mode Manual / Automatic Temperature Compensation Yes Standards Compliance IEC/EN 60947-4-1, 60947-5-1 Application Extra-large motor protection